Khanfar RSA v1.02 | Multi-SDR Operations Console

Command Surface

One operator console for scan, decode, RF mapping, and replay.

Khanfar RSA keeps real-time spectrum analysis, live RF control, SWL and HF listening, 2.4/5 GHz Wi-Fi analysis, LTE cell-analysis workflow, decoder workflows, map views, replay, Gamma analysis, and up to 120 FPS 2D FFT viewing on compatible GPU and display setups inside one faster surface instead of spreading the job across separate tools.

Live monitor Wide-span scan, fast retune, favorites, alerts, and recorder logic stay on the same screen.
Decode stack Analog voice, Pure DSP AM/SSB, digital helpers, CAT-linked tools, ATV, and DATV stay close to the radio path.
Map and review Heat Map, FT8, ADS-B, AIS, Wi-Fi analysis, LTE analysis, IQ replay, and playback review cover live work and after-action analysis.
Multi-SDR runtime Local, network, and remote SDR paths combine with web control and team-side visibility.

Download Release Archive

Visual Tour

Screenshots

Runtime Scanning Wi-Fi LTE Decode Replay 2D FFT Mapping Gamma

Khanfar RSA preview 1 — Live operator view

Khanfar RSA preview 2 — Wide-span scan screen

Khanfar RSA preview 3 — Band and tune workflow

Khanfar RSA preview 4 — Detection and favorites

Khanfar RSA preview 5 — Recorder and events

Khanfar RSA preview 6 — Direct tuning workspace

Khanfar RSA preview 7 — Demod and footer controls

Khanfar RSA preview 8 — Wide monitor layout

Khanfar RSA view 3 — Runtime profile view

Khanfar RSA view 5 — Operator workflow panel

Khanfar RSA view 7 — Receiver control view

Khanfar RSA remote control web client view — Remote control web panel

Khanfar RSA view 8 — Alternate monitor view

Khanfar RSA v1.10 Heat Map preview — Heat Map survey

Khanfar RSA v1.11 FT8 Geo Mapper preview — FT8 Geo Mapper

Khanfar RSA v1.11 ADS-B aircraft mapper preview — ADS-B tracker

Khanfar RSA v1.12 ATV demodulator preview — ATV monitor

Khanfar RSA 2D FFT classic spectrum view — 2D FFT classic spectrum

Khanfar RSA docked 2D FFT and waterfall with POTA station list — 2D FFT with POTA station view

Khanfar RSA filled 2D FFT spectrum example — Filled 2D FFT style

Khanfar RSA floating 3D FFTv3 companion surface — 3D FFT companion surface

Khanfar RSA docked 2D FFT and waterfall on HackRF — Docked 2D FFT on HackRF

Khanfar RSA 2D FFT with floating 3D companion view — 2D FFT with 3D companion

Khanfar RSA 2D FFT SWL viewer with EiBi overlays — 2D FFT SWL overlays and bookmarks

Khanfar RSA paused 2D FFT waterfall rewind with magnifier and measurement tools — SWL rewind history and paused measurements

Khanfar RSA 2D FFT SWL viewer with EiBi station list — 2D FFT SWL station list

Khanfar RSA Wi-Fi Analysis access-point table with dual-band spectrum and waterfall views — Wi-Fi AP table and dual-band spectrum

Khanfar RSA Wi-Fi Analysis 2.4 GHz 3D channel view — 2.4 GHz Wi-Fi 3D channel view

Khanfar RSA Wi-Fi Analysis 5 GHz 3D channel view — 5 GHz Wi-Fi 3D channel view

Khanfar RSA LTE Analysis scan and cell detail workspace — LTE scan and cell detail workspace

Khanfar RSA Gamma 3D FFT preview 1 — Gamma 3D FFT A

Khanfar RSA Gamma 3D FFT preview 2 — Gamma 3D FFT B

Khanfar RSA Gamma 3D FFT preview 3 — Gamma 3D FFT C

Khanfar RSA Gamma 3D FFT preview 4 — Gamma 3D FFT D

Platform Overview

Khanfar RSA at a Glance

Khanfar RSA is a Windows SDR operations console that keeps radio control, wireless analysis, decoding, mapping, replay, and collaboration together so operators can move faster with less context switching.

Scan Whole-span peak hunting, retune, detections, favorites, and recorder flow.

Listen + Decode HF, SWL, analog voice, Pure DSP, DSD paths, CAT sync, and decoder helpers.

Map Heat Map, FT8 Geo Mapper, ADS-B, and AIS for situational awareness.

Review Analysis tools, IQ replay, WAV IQ support, and Gamma views for follow-up work, Wi-Fi - LTE Analysis.

Multi-SDR coverage: local, network, and remote receiver paths stay inside one console.
SWL-ready workflow: band tools, narrowband DSP, and fast tune feedback stay central.
Wireless analysis: built-in 2.4/5 GHz Wi-Fi sweep workflow and LTE Analysis extend the same runtime into nearby wireless survey and downlink inspection.
Deep reference: the guide and archive hold the long-form control and release detail.

Why the scanner feels different: Khanfar RSA watches a full chunk of spectrum and reacts to peaks inside it instead of only seeing the one center frequency a sweep scanner lands on.

Detailed control reference, signal-stability tuning, NFM FFT masking, and saved-state behavior remain in the Complete User Guide so this page can stay product-led.

Open Release Archive

Supported SDR Paths

RTL-SDR Airspy Airspy HF+ SDRPlay LimeSDR HackRF bladeRF Pluto+ USRP SpyServer RTL-TCP

Mission Packs

Reactive Scan

Whole-span monitoring with fast response to live peaks.

Decoder Bench

Analog, Pure DSP, DSD, FT8, Morse, PSK/RTTY, and CAT-linked flows.

SWL + HF

HF listening tools with tight AM/SSB tuning, floating 2D FFT overlays, separate Renderer and FFT Compute CPU/GPU paths, 120-second waterfall rewind review, and replay backup.

Mapping

Heat Map, FT8, ADS-B, and AIS all live beside the radio path.

Analysis + Replay

Analysis tab, IQ replay, WAV IQ, and return-to-live workflow.

Wi-Fi + LTE

2.4/5 GHz Wi-Fi occupancy workflow and LTE cell-analysis views bring wireless survey and downlink inspection into the same console.

Gamma Visuals

3 Layers Gamma, second pane, art modes, floating 3D FFT views, and Fosphor controls for FFT size, response, overlap, VSync, and timing.

SWL and HF Monitoring

Built for practical shortwave work

Khanfar RSA is not limited to spectrum browsing. It is designed for real tuning and listening work across shortwave broadcast, HF utilities, amateur bands, and signal hunting where fast visual context, floating 2D FFT review, and direct operator control matter.

HF-ready workflows: band shortcuts, manual or automatic tune behavior, and visual lock on weak or drifting stations.
Focused demod choices: AM, SAM, USB, LSB, CW, RAW, and optional Pure DSP controls for more deliberate HF listening.
Floating 2D FFT + waterfall: weak-signal review, rewind, and fast visual confirmation stay close to the live receiver.
Backend-aware 2D view: the controls expose separate Renderer and FFT Compute selectors with Auto, GPU, and CPU modes plus live Render, FFT Backend, and Actual FPS readout.
Up to 120 FPS path: the floating 2D FFT viewer offers presets up to 120 FPS. Delivered speed depends on FFT size, waterfall depth, trace settings, active renderer or compute backend, compatible NVIDIA CUDA hardware, and a 120 Hz display.
Realtime rewind review: pause the waterfall, browse up to 120 seconds behind live, inspect UTC and frequency under the cursor, magnify weak detail, and measure bandwidth or time span inside the paused view.
Right-click SWL control: the FFT and waterfall quick menu exposes Pause Rewind, Return to Live, FFT and waterfall tuning, plus Bookmarks controls for Local, EiBi, POTA, SOTA, Spot Age, and POTA QRT visibility.
EiBi, POTA, and SOTA overlays: scheduled shortwave stations and live amateur spots can be shown directly on the FFT scale with filters and background refresh.
Hardware flexibility: works with Airspy HF+, LimeSDR, SDRPlay, RTL-SDR, and other supported receivers depending on the task.
Review after capture: IQ replay, Gamma views, and analysis tools let you inspect difficult HF sessions instead of losing them live.

SWL is now a first-class story in Khanfar RSA: this page surfaces the floating 2D FFT workflow, 120-second waterfall rewind, direct right-click control, EiBi/POTA/SOTA overlays, and propagation-aware monitoring, while the Complete User Guide keeps the full control-by-control detail and appendix.

Platform Snapshot

Current Focus

Unified Product Story

The front page is centered on the active operator console: monitor, listen, map, replay, and analyze.

SWL + HF First

Shortwave, HF, propagation-aware monitoring, and floating 2D FFT overlays for EiBi, POTA, and SOTA now sit visibly beside the broader multi-SDR runtime story.

Broad Hardware Coverage

Airspy HF+, SDRPlay, RTL-SDR, LimeSDR, HackRF, bladeRF, Pluto+, USRP, and remote SDR paths remain part of the same platform.

Reference Moved Out Cleanly

Controls, propagation guidance, signal-stability notes, the complete control appendix, and release history remain preserved in guide-side documentation.

Latest Build Highlights

Show / Hide Latest Build Highlights

New Featuresv1.12

Added Pure DSP toggle and Config popup for alternate AM / USB / LSB workflow with AM bandwidth/sync controls and SSB filter-bank tuning.
Added ATV Demodulator with FM-A / FM-B / FM-C / AM modes, embedded split-view monitor, and popup Monitor / Scope tabs.
Added DATV Receiver hybrid DVB-S receive workflow with optional external LeanDVB backend path, UDP transport-stream forwarding, and external player launch support.
Expanded ADS-B Aircraft Mapper with local CPR fallback, reference/home helpers, icon styles, Light/Dark theme, and new-aircraft alert modes.
Expanded AIS Mapper with Light/Dark theme, alert modes, richer compact tables, and a floating Full Data vessel window.
Added WAV IQ playback and recording in IQ R-P for stereo IQ WAV workflows from other SDR tools.
Expanded Gamma art workflow with more art palettes, art-line / art-fill controls, lower minimum Gamma size, and floating 3D FFTv1 / v2 / v3 viewers.

DATV backend setup: After the first ARH run, the software creates a DATV folder next to the EXE. DATV uses an optional external LeanDVB backend that is not bundled with the main ARH app. Download the external LeanDVB package from github.com/e4mwak/leandvb, then place leandvb.exe, libstdc++-6.dll, and libgcc_s_seh-1.dll inside that DATV folder so the DATV Receiver can use them automatically.

v1.12 runtime note: Pure DSP only affects AM / USB / LSB when the toggle is enabled. ATV, DATV, ADS-B, and AIS are decoder-side IQ workflows and work best with conflicting main demod modes such as WFM disabled first.

DATV quick use: Run ARH once, put the LeanDVB files in the created DATV folder, tune to the DVB-S signal, set the symbol rate and related DATV controls, enable DATV Receiver, then launch VLC or ffplay after lock if you want playback.

Version 1.12 expands Khanfar RSA from mapping-heavy decoder work into a more complete RF-monitoring console with alternate AM/SSB DSP behavior, analog TV monitoring, practical DATV receive workflow, and better aircraft and vessel operating tools.

The result is a stronger day-to-day operator workflow: analog and digital video can be monitored inside the same application, ADS-B and AIS maps are more informative, Gamma now has multiple floating 3D FFT analysis styles, and IQ playback now accepts WAV captures in addition to the existing Khanfar RSA recording formats.

New Featuresv1.11

Added expanded Internal Decoder Beta workflow with live FT8 monitor table, FT8 logging, and a parallel Morse Decoder box.
Added FT8 Geo Mapper with embedded split-view world map, offline tile cache reuse, center-latest action, and locator-based station plotting.
Added ADS-B Aircraft Mapper for manual-tuned 1090 MHz aircraft monitoring with embedded map, aircraft list, and decoded position when CPR data is available.
Added AIS Mapper for manual-tuned marine AIS monitoring with embedded vessel map, vessel table, and channel selection for AIS-A, AIS-B, or AIS A+B.
Improved embedded map lifecycle so decoder-side map features follow the same split-view behavior used by Heat Map.

v1.11 runtime note: FT8 Geo Mapper follows internal FT8 decode workflow, ADS-B expects manual tuning near 1090.000 MHz with 2.0 MS/s or higher and WFM disabled, and AIS expects manual tuning near 162.000 / 161.975 / 162.025 MHz with 100 kS/s or higher and WFM disabled.

Version 1.11 extends Khanfar RSA beyond survey and spectrum work into live geospatial weak-signal, aircraft, and marine-traffic monitoring. Internal decode and mapping now sit directly inside the existing runtime instead of forcing separate tools for every workflow.

The result is a more complete operator console: FT8 stations can be mapped, aircraft can be tracked from the current IQ stream, vessels can be followed on AIS channels, and decoder-side monitoring grows while the rest of the Khanfar RSA scan, analysis, Heat Map, Gamma, and digital workflows remain available.

New Featuresv1.10

Added dedicated Heat Map tab for GPS-linked RF survey with live logging of target-frequency signal strength against map position.
Added OpenStreetMap display workflow with offline-only mode, cached tiles, quick city jump, manual lat/lon goto, and auto-center options.
Added Heat Map overlays including grid, GPS quality, peak hold, footprint rings, and Hunt Arrow directional guidance.
Added session save/load/replay workflow with replay speed, timeline slider, and stop-replay return-to-live behavior.
Added compare-session overlay and delta analysis for before/after route or antenna checks.
Added CSV export and PNG snapshot workflow for reporting and external analysis.
Added geofence-style live alert controls with low/high thresholds, hold, cooldown, and optional beep.

v1.10 runtime note: Heat Map works best when the target frequency remains inside the current SDR span and when map tiles for the work area are cached ahead of time for offline field use.

The Heatmap Tab feature transforms Khanfar RSA into a comprehensive RF survey tool, providing professional-grade geospatial signal analysis capabilities. By integrating GPS positioning, real-time signal processing, and advanced visualization techniques, users can create detailed coverage maps, locate signal sources, and document RF behavior with geographic precision.

The feature is designed for both professional RF engineers and amateur radio enthusiasts, offering intuitive controls while maintaining the technical depth required for serious analysis work. All data is stored in open formats for maximum compatibility with external analysis tools and workflows.

New Featuresv1.09

Added dedicated Analysis tab with Mask Trigger modes, POI monitor, action engine, band statistics, and candidate inspection workflows.
Added smart priority scan, adaptive dwell, cooldown handling, and temporary auto-fix helpers for difficult scan conditions.
Added dedicated IQ R-P tab for DAT/DGZ recording, playback, CFG import/apply/export, and return-to-live control.
Added playback analyzer popup with FFT, waterfall, power-vs-time, and I/Q view modes.
Added dedicated 3 Layers Gamma FFT tab with live embedded controls for palette, background, FFT, decay, size, floor, and position.
Added full 3-layer customization for the main Gamma layer plus G2/G3 overlays, along with built-in fresh-run mix presets m1, m2, and m3.
Added art1 / art2 / art3 / art4 visual modes plus interactive legend controls for Clear/Write, Max Hold, and Average.
Added optional Second Gamma Box with separate settings, independent mix preset selection, and mouse-resizable Gamma/Gamma splitter.
Added screen-aware Gamma/Fosphor layout normalization and better persistence of Gamma/Fosphor plus Gamma/Gamma split positions.
Added SpyServer support for localhost or same-LAN remote Airspy workflows with Radio-tab host/port apply controls.
Added HackRF DC Correct option to reduce the common center spike on HackRF and similar zero-IF SDRs when the driver supports it.

v1.09 runtime note: SpyServer requires a running spyserver.exe endpoint with Airspy attached on the server side. 3 Layers Gamma FFT art modes and DC Correct depend on the active device/driver path, and Gamma split layouts are now saved per user workflow.

New Featuresv1.08

Added full RTL-TCP integration for local or remote RTL-SDR receivers with host/port save/load and startup priority support.
Added RTL-TCP network presets (Low Latency, Stable Wi-Fi, Balanced, Max Throughput) with runtime-friendly reconnect behavior.
Added new demod modes: RAW, USB, LSB, CW, and DSD, while preserving NFM/AM/WFM operation.
Added ARH RX CONTROL fixed quick-control panel above tabs with live frequency, step readout, and level meter.
Added full fixed-panel quick controls for SCAN/PAUSE/START/STOP/SKIP, plus AGC presets, ASQ, SQL, gain, and unified mute behavior.
Added band keypad workflow with 0-9/dot/clear/enter, MHz entry mode, and expanded band catalogs including HF broadcast/ham groupings.
Added T0 auto modulation switch so band/preset tuning applies expected demodulation automatically.
Added automatic WFM/narrowband conflict handling to reduce manual mode-toggle steps during tuning.
Added Hover FFT guide/readout in Radio tab with persisted toggle state.
Added Decoder tab workflows for FT8, FT4, RTTY U/L, PSK, PSK31/PSK63, and SSTV preset tuning paths.
Added built-in CAT bridge (Hamlib rigctl TCP) for WSJT-X and FLdigi frequency/mode synchronization.
Added Decoder audio output selector for faster VAC/loopback routing setup without leaving Decoder tab.
Added decoder backend selector (External Apps / Internal Beta) with native internal RTTY and PSK31/PSK63 decoding.
Added internal FT8 decode support.

v1.08 runtime note: CAT bridge is control-only (frequency/mode/PTT state). Actual FT8/FT4/RTTY/PSK decode still requires proper audio routing to decoder input (VAC/loopback) when using external decoder apps.

New Featuresv1.07

Added Automatic tuning settings popup with live controls for spot-lock, min SNR, persistence, stable-time, timeout, hold, and peak candidate behavior.
Added Automatic tuning profiles with Activate, Save, Save as, and Delete workflows, plus active profile restore on next launch.
Added smoother Auto-to-Manual handoff that retunes to last automatic frequency (or center fallback).
Added full NFM FFT Mask system with GREEN allow and RED block rectangles.
Added mask profile manager with create/rename/delete, multi-enable checkboxes, and profile-aware editing.
Added right-click FFT mask actions for Add Mask Here, quick scope switching, and mask rename/delete operations.
Added Operator Copilot mission advisor popup with raw state, decision cards, analysis feed, and one-click Apply Selected actions.
Added Digital follow behavior update: when control-list trigger is OFF, DSD/NEO can follow main GUI active frequency.
Added SDRPlay support in main GUI runtime and unified device workflow.
Improved mask overlays for resize/fullscreen alignment, refresh smoothness, and close cleanup stability.
Finalized mask mode around rectangle-only behavior for higher runtime stability.

v1.07 runtime note: SDRPlay requires installed SDRplay API/driver v3.150 on the PC. Mask system is finalized as rectangle-only for stable daily operation.

New Featuresv1.06

Added Pluto+ Radio support with USB/Ethernet link handling, saved link settings, auto-detect helper, and live status panel.
Added USRP Radio support with NFM/AM/WFM operation, practical sample-rate presets, and advanced runtime controls.
Added shared Pluto-USRP probe toggle so Initialize SDR and Digital Refresh can skip optional probes for faster startup on non-Pluto/USRP systems.
Upgraded tuning UX with frequency-anchored marker behavior, improved crosshair overlays, and active-frequency label at cross intersection.
Added Click calibration ON/OFF control (session default OFF), with optional nearest-peak snap and self-learning click mapping.
Added WFM extended footer controls (multi-row mode) with seek, mute, step, volume/gain/fosphor shortcuts, and editable quick presets.
Added WFM hover/tuned/footer sync improvements plus direct WFM-tab sample-rate selector synced with main Radio sample rate.
Added WFM volume headroom limit at 0.70x for cleaner output control.
Added Digital TK follow toggle to mirror live talk frequency on cursor while digital runtime is active.
Improved one-EXE settings reliability with safer writable-path fallback and stronger persistence for runtime/calibration values.

v1.06 runtime note: Click calibration is optional and starts OFF each run for predictable default behavior. When ON, successful snapped clicks gradually improve mapping fit.

New Featuresv1.05

Major Digital runtime modernization focused on DSD folder workflow and cleaner one-EXE behavior.
Smarter control-channel hunting with cc RTLv2 Report live popup, counters, elapsed timer, and compact export output.
Probe dwell is now fixed at 8 seconds per candidate for more reliable CC validation.
Hybrid control-list runtime enforced: control list ON follows control-list mode, control list OFF follows main/manual tuning mode.
Automatic receiver restart is applied when required so runtime mode changes take effect without manual recovery.
Improved Digital Start/Stop/Restart reliability for repeated dongle use across RTL-SDR, Airspy, and related workflows.
Digital tab now preserves selected device intent better across refresh/start/stop/restart flows.
Added Extract Report workflow and cleaner one-sheet report output in Smart Tool path.
Added/expanded Digital live visibility panels including Channel Activity, Log Analytics, and Error Burst metrics.
Popup close flow in cc RTLv2 now restores Use Control List ON and restarts receiver to return to expected operating state.
Added new RTL-only PPM Calibration Tool in Radio tab with known-carrier, live error readout, and suggested PPM apply.
PPM tool includes safety gates: receiver running, NFM enabled, and Automatic tuning enabled.

v1.05 runtime note: DSDPlus files remain external third-party binaries. ARH creates and uses the DSD runtime folder, and users should place official DSDPlus files there.

New Digital Featuresv1.03

Added Digital DSD+ OP25 Processing with advanced constellation analysis and control channel detection
Added Control Channel Finder with three detection methods: Find CC button, Fixed View, and Classic Sweep
Added Real-time Constellation Visualization showing digital signal modulation patterns and 4-dot cross detection
Added Dual RTL-SDR Support for digital processing (main dongle for scanning, secondary for DSD+ decoding)
Added Advanced CC Detection Algorithms using constellation plot analysis with confidence scoring
Added Digital Tab Interface with control channel management, constellation viewer, and auto-catch functionality
Added Signal Quality Metrics for digital signals including SNR, persistence, history points, and constellation quality scores
Added Constellation Auto Catch with Fixed View and Classic Sweep modes for automated CC detection
Added DSD+ Integration requiring external DSD+ Public Release files for voice processing
Added Frequency Source Options for constellation viewer (Control, Active, Automatic modes)

DSD+ Requirement: To enable voice processing, please download the third-party latest DSDPlus Public Release software and the DLL package from the official DSDPlus website. Extract all files into a dedicated /DSD subfolder within this application's directory. Our software remains a separate entity that 'points' to this external tool and will communicate with it via local TCP for audio and control data. We do not distribute DSDPlus binaries; you must obtain them directly from the official source.

New Featuresv1.04

Added DSD-NEO Integration in Digital tab with optional NEO toggle (OFF uses original digital flow, ON uses NEO flow).
Added external process control where ARH GUI communicates with dsd-neo.exe over local runtime + UDP control.
Added expanded NEO settings panel (Mode, SQL, BW, Gain, PPM, Vol, Dig Gain, Trunk, UDP Ctrl, Bias-T, Auto PPM, follow controls, TG Hold, Hang).
Added key and CSV workflow controls: Channel CSV, Group CSV, Key CSV Dec/Hex, BP Key, RC4/H/Stream keys with explicit apply actions.
Added Smart Tool popup to generate valid Channel/Group/Key CSV files and DMR Tier III LCN helper output without manual formatting errors.
Added NEO Recording toggle (default OFF) and optimized Call Info log behavior for lower UI load.
Added Key/Privacy panel including BP/RC4/H/Stream keys and CSV key import support (Dec + Hex).
Added Trunk follow controls (Group/Private/Data/Encrypted) plus TG Hold and Hang-time.
Added Auto PPM result indicator in Digital tab so live correction status is visible when enabled.
Improved core runtime startup: smoother first GUI launch, cleaner SDR initialization flow, and stronger Start/Stop behavior.
Improved multi-device switching for RTL-SDR, Airspy, HackRF, and added/confirmed BladeRF support in runtime workflow.
Added SDR initialization flow that lets user initialize/select devices from list, then start receiver when ready.

DSD-NEO Setup: ARH creates a DSD_NEO folder on first run (same location as Analog-Radio-Hunter.exe). Download the official Windows bundle dsd-neo-msvc-x86_64-native-nightly.zip from upstream developer sources and extract files manually into DSD_NEO. ARH does not bundle NEO binaries by default.

Quick NEO start tip: set SQL around -70. For trunk monitoring, select trunk mode, enable follow options, choose BW (24 or 48), add control frequencies, enable Use control frequency list, then click Start and choose your control channel row.

Source links: arancormonk/dsd-neo and e4mwak/dsd-neo (fork/build source).

License/attribution note: DSD-NEO is an external third-party decoder project (GPL-3.0 upstream). ARH controls it as a separate process; users should download binaries from official developer sources.

Security behavior note: one-file EXE builds may extract runtime files into %TEMP% at launch. If app flashes then closes, check Windows Security Protection History for possible quarantine events.

New Featuresv1.01

Histogram button upgraded to Histogram IQ Rec with launch interlock and live control set.
GUI Scan Debug panel added with colorized event categories and two-line readable records.
Skip scan control added next to Pause for instant hop to next frequency.
Auto Cal squelch button added (noise estimate + margin -> threshold).
Signal Stability filter added with per-target routing, including optional Audio Out gating.
Audio Output menu added in Radio tab (device dropdown + refresh for speakers, VB-Cable, or USB audio).
Favorite cooldown (temporary mute) added with automatic re-enable logic.
Favorite TX tones added with edge mode, tone library (1-9), and test controls.
ADS-B and AIS mapping now surface distance-from-home columns, sortable tables, and configurable range rings.
Learning Mode toggle added for hover-based guided usage.

New Featuresv1.02

Added Adaptive Squelch Smart Auto mode for no-input operation (no manual open/close margin required).
Smart Auto now learns floor from the same NFM level reference used by Auto Cal for better threshold accuracy.
Adaptive runtime now re-learns quickly after SDR gain changes to keep squelch behavior stable.
Added on-page Smart Auto simulator to visualize floor/open/close threshold behavior interactively.
Added Peak-Follow Persistence Filter so retune/open requires repeated peak confirmation, blocking random one-shot spikes.
Added optional Spot-lock until squelch closes mode for peak-follow: lock the current active spot while open, then return to strongest-peak search after close.
Added top-right GUI status dots: RX dot (blue in WFM, gray when NFM/AM is off, and green/orange by NFM + squelch state), Favorite RX dot (purple when active RX is a favorite), and Recorder dot (blinking red while recording).
Added top-header Tune Step 12.5 kHz quick buttons (- / +) directly under the v1.02 caption for fast channel nudging.
Added top-header Manual tuning and Automatic tuning buttons (mutually exclusive): Manual turns off Tune to peak in span, Automatic turns it on.
Added top-header Active frequency readout near v1.02 using 4-decimal MHz format (example: 422.7250).
Expanded Web Control with mode buttons for WFM and NFM/AM, including conflict popups when trying to enable both modes together.
Added Manual tuning and Automatic tuning buttons in Web Control, linked to the same GUI Tune to peak in span logic.
Added LAN Live Audio Stream in Web Control for real-time browser listening to current demod audio on the same local network.
Updated Web Control Tune Step display to kHz and improved Log Page with live heat-coloring for Detection, Favorites, and Scan Debug entries.
Added login-first access for Web Control and Log Page; remote clients now authenticate before controls are shown.
Added web connection badge (green connected / red disconnected) and per-page favicon for Web Control, Log Page, and Team Wall.
Merged Team Wall and the live log monitor into one shared page so operators can watch logs while adding notes/claims.
Upgraded LAN Team Wall to account-based access with login page, role permissions (observer/controller/admin), and host-admin user management.
Updated Team Wall role UI: Join/Update, Presence, and Back Control are admin-only; observer/controller do not see them.
Added live web value coloring for active/last/changeable fields: green when changed and yellow when stable.
Added Team Wall persistence for shared data and accounts (auto-save/restore using teamwall_data.json), plus admin-only wall reset controls.

Fixes and UI Improvementsv1.01

Fixed histogram multi-launch from accidental double/triple clicks.
Fixed scan session carry-over after changing scan range and restarting scan.
Fixed smart-deactivate behavior when multiple carriers stay active together.
Fixed favorites cooldown recovery so detection is re-enabled when cooldown clears/expires.
Added row heatmap balancing and preserved heatmap colors during selection.
Tables compacted to fit default GUI width (favorites/recorder), with larger visible recorder area.
Status bar improved with persistent AutoCal log visibility and live metrics clarity.

Behavior Notesv1.02

Smart Auto warm-up now seeds earlier from short history to reduce false OPEN on plain noise after enabling.
Manual adaptive mode now uses the same channel-level dB domain as Auto Cal for consistent absolute Open/Close behavior.
Peak-follow now uses persistence gating and short hold logic to avoid jittery retune/open from transient spikes.
Spot-lock mode follows classic scanner flow: latch on squelch-open, hold during active TX, release on squelch-close, then resume normal peak-follow.
Adaptive floor/margins reset paths improved when toggling adaptive mode or changing gain.

Team Wall - How to Usev1.02

1) Before You Start (Beginner Checklist)

All devices must be on the same LAN (same router/subnet).
On host PC, start Web Control in GUI and confirm server is ON.
Use host URL from GUI (example: http://192.168.1.50:5000).
Team Wall URL is: http://HOST_IP:PORT/wall.
Use host LAN IP, not 127.0.0.1, for other devices.

2) Admin Side (Host PC) Step-by-Step

Open /wall on host PC and click Host Admin to login.
Go to Admin - User Management.
Create operators with username, password, role, and enabled state.
Roles:
- observer: notes/claims/actions in Team Wall (no Web Control commands).
- controller: notes/claims/actions in Team Wall + Web Control commands.
- admin: full control + user management + clear wall + Join/Update + Presence.
Share login credentials and Team Wall URL with your team.

3) Client Side (Other Operators) Step-by-Step

Open browser to host URL + /wall.
Login using admin-created username/password.
Observer/controller users can start notes/tags and claim/release immediately after login.
Join / Update and Presence are admin-only panels (not shown to observer/controller).
Use the integrated live log monitor on the same page while coordinating actions.

4) Daily Workflow (Recommended)

Observer/controller sees active signal and adds a shared note/tag (security/noise/priority).
Observer/controller claims channel to avoid overlap.
Team follows Action Feed for handoff and decisions.
Release claim when finished so channel becomes available.

5) Data Persistence + Recovery

Team Wall saves data and accounts automatically to teamwall_data.json.
On app restart, Team Wall state is restored automatically.
Admin can use Clear Wall Data for manual reset of wall activity data.

6) Why Team Wall Is Useful (Benefits)

Shared operational view for all operators.
Role-based control limits risky commands while still allowing notes/claims collaboration.
Faster coordination with fewer duplicate actions.
Persistent shared context across restarts.

7) Troubleshooting (Beginner Friendly)

Client cannot login: verify account was created by host admin and user is enabled.
Host Admin fails on client PC: this is expected (host-admin login is host-only access).
Client cannot connect: verify host Web server ON and LAN IP/Port are correct.
Claim blocked: channel may already be claimed by another operator (check Claims table).

Important: Operators are managed by host admin accounts. All users login first; Join/Update and Presence are admin-only panels.

Operator Copilot Mission Advisor (Click to Show/Hide)

Operator Copilot is an on-device mission assistant that watches live radio conditions and generates decision cards in real time. Each card shows what to change, why it matters, and can be applied instantly from the Copilot panel.

How to use: Open Radio Tab > Operator Copilot, review card confidence/score, then click Apply Selected. Use Ignore 30s to temporarily suppress noisy cards.

Decision Cards (Name, What It Does, When It Appears)

Enable Scan Hold on Squelch

When It Appears
Scan is running and squelch opens without hold-on-open enabled.

What It Does
Applies scan hold so active traffic is not skipped while a signal is open.

Resume Scan

When It Appears
Scan is paused while squelch is closed and normal scanning should continue.

What It Does
Resumes scan flow immediately.

Enable Automatic Peak Follow

When It Appears
NFM scan is active but automatic peak-follow is currently OFF.

What It Does
Turns on automatic peak-follow to lock onto active carriers in span.

Tighten Squelch (+3 dB)

When It Appears
Squelch opens too frequently or flaps due to noise-trigger behavior.

What It Does
Raises squelch threshold to reduce false opens.

Loosen Squelch (-3 dB)

When It Appears
Squelch rarely opens even when strong peaks are present.

What It Does
Lowers squelch threshold to recover valid traffic.

Run Auto-Squelch Calibration

When It Appears
Operating conditions change or squelch behavior becomes unstable.

What It Does
Runs automatic squelch calibration for a fresh baseline.

Increase Hang Time (...) / Reduce Hang Time (...)

When It Appears
Suggested based on edge chatter versus idle/slow-close behavior.

What It Does
Tunes squelch hang timing for smoother scan behavior.

Enable Spot-Lock / Disable Spot-Lock

When It Appears
Appears according to retune stability and scan idle/activity state.

What It Does
Adjusts spot-lock for stability versus faster reacquisition.

Lower Min SNR (...) / Raise Min SNR (...)

When It Appears
Peak SNR behavior is below, near, or above the active threshold target.

What It Does
Adjusts min SNR for faster lock or stronger false-signal filtering.

Enable Signal Stability Filter

When It Appears
Squelch transitions are noisy and open/close edges are unstable.

What It Does
Enables stability filtering to clean up squelch transitions.

Enable NFM Masking

When It Appears
Crowded spectrum conditions are detected while masking is OFF.

What It Does
Turns masking ON so operators can focus only on desired regions.

Create RED Ignore Mask Around Active

When It Appears
Dense activity/noise conditions around current tuned area.

What It Does
Adds a quick RED block mask around active frequency to ignore noisy region.

Create GREEN Focus Mask Around Active

When It Appears
High activity exists while signal path is currently open.

What It Does
Adds a GREEN allow mask around active frequency for tighter focus.

Return to Last Stable Auto Frequency

When It Appears
Manual mode is active and current tune is offset from last stable auto lock.

What It Does
Retunes back to the last known stable automatic frequency.

Enable Digital Follow Main Active

When It Appears
Digital runtime is running in main-source mode but follow-main is OFF.

What It Does
Enables digital follow-main-active alignment.

Disable Favorites-Only Scan

When It Appears
Favorites-only scan is ON but no active favorites exist.

What It Does
Disables favorites-only gating so scan can continue normally.

Copilot safety note: Copilot is rule-based and local (no cloud API required). Operators can review cards first, then apply only what matches mission intent.

Runtime Needs

Requirements

Important Runtime Requirement: Install Microsoft Visual C++ Redistributable 2015-2022 (x64) before running this software.

System

Windows 10/11 (64-bit)
CPU (recommended for smooth operation): 10th generation Intel/AMD or newer
RAM (minimum): 16 GB
GPU acceleration (minimum): 4 GB VRAM NVIDIA card with CUDA support
Display (recommended for 120 FPS): 120 Hz LCD
USB 2.0/3.0 port for SDR hardware

Decoder + Pure DSP Expansion (v1.12)

Show / Hide Decoder + Pure DSP Expansion

What v1.12 Adds

Pure DSP toggle next to the Radio-tab mode list for alternate AM / USB / LSB workflow.
Pure DSP Config popup for AM bandwidth, sync selection, low cut, and SSB filter-bank tuning.
ATV Demodulator with FM-A / FM-B / FM-C / AM analog-TV workflow, embedded split monitor, and popup Monitor / Scope tabs.
DATV Receiver hybrid DVB-S workflow using optional external LeanDVB backend path plus external-player launch.
WAV IQ replay/record support in IQ R-P so playback and decoder workflows can use stereo IQ WAV files from other SDR tools.
Gamma 3D FFT expansion with floating 3D FFTv1, 3D FFTv2, and advanced surface-style 3D FFTv3 viewers.

DATV setup note: ARH creates a DATV folder next to the EXE after the first run. Download the LeanDVB package from github.com/e4mwak/leandvb and place leandvb.exe, libstdc++-6.dll, and libgcc_s_seh-1.dll inside that folder so DATV can find the backend automatically.

Typical v1.12 Workflow

Use Pure DSP only when you want the alternate AM / SSB DSP controls instead of the normal ARH AM/SSB workflow.
Use ATV Demodulator with main audio demod modes off, sample rate around 2 to 4 MS/s, and tune near the analog TV carrier.
Use DATV Receiver with sample rate above symbol rate, the external leandvb.exe backend available, and a compatible DVB-S signal.
Use IQ R-P when you want the same decoder-side workflows from playback IQ instead of live SDR.

DATV startup sequence: run the software once so the DATV folder is created, copy the LeanDVB files there, tune the DVB-S signal, set the DATV parameters, enable DATV Receiver, and launch VLC or ffplay after lock if you want transport-stream playback.

v1.12 turns the Decoder side into a broader specialist workbench: alternate AM / SSB DSP, analog TV, digital TV forwarding, richer playback workflows, and the existing mapping tools all stay inside the same runtime.

Decoder Expansion (v1.11)

Show / Hide Decoder Expansion

What v1.11 Adds in Decoder

Live internal FT8 monitor table with UTC, SNR, dt, Hz, and decoded message fields.
Internal FT8 message logging with daily text files and direct log access.
Parallel Morse Decoder box with auto tracking, lock-current, and manual pitch/WPM controls.
FT8 Geo Mapper with embedded split-view world map and station history table.
AIS Mapper with embedded vessel map and marine traffic table from the current SDR IQ stream.

Typical FT8 Geo Mapper Workflow

Enable the internal FT8 decode path in Decoder.
Turn on FT8 Geo Mapper to open the embedded map in the live split view.
Watch stations plot by Maidenhead locator while the table keeps recent decode history.
Use World, Center Latest, Offline Only, or Clear Map as needed.

FT8 Geo Mapper keeps weak-signal station mapping inside the normal ARH runtime. It reuses internal decode results and learned station-location context so the map stays useful across repeated exchanges.

ADS-B / Aircraft Mapper (v1.12)

Show / Hide ADS-B / Aircraft Mapper

What ADS-B Adds

Manual-tune 1090 MHz aircraft monitoring using the current SDR IQ stream.
Embedded aircraft map plus aircraft table inside the ARH split-view workflow.
Decoded ICAO, callsign, altitude, groundspeed, heading, and aircraft position when usable CPR pairs are available.
Local CPR fallback using reference lat/lon, map-derived reference, or a picked home point when full CPR pairing is incomplete.
Selectable Dot / Jet / Airliner aircraft icons, Light / Dark map themes, and alert modes for newly positioned aircraft.

Typical Workflow

Start the SDR and set sample rate to 2.0 MS/s or higher.
Turn WFM off and tune manually near 1090.000 MHz.
Enable ADS-B 1090 in Decoder.
Enable Local CPR and set Ref Lat / Ref Lon or use Pick Home when you want more map positions from short or incomplete captures.
Watch the aircraft map and aircraft table update from the current stream.

ADS-B / Aircraft Mapper extends ARH into aircraft-monitoring work without leaving the main interface. In v1.12 it adds local-CPR helpers, home/reference workflows, alerts, themes, and icon styles while keeping the same manual-tune specialist operating model.

AIS Mapper (v1.12)

Show / Hide AIS Mapper

What AIS Adds

Manual-tune marine AIS monitoring from the current SDR IQ stream.
Embedded vessel map plus vessel table inside the same ARH split-view workflow used by the other map features.
Decoded MMSI, vessel name when transmitted, vessel type when available, speed over ground, course over ground, and map position when usable location data is present.
Light / Dark map themes, alert modes, richer compact vessel tables, and a floating Full Data vessel window.

Typical Workflow

Start the SDR and set sample rate to 100 kS/s or higher.
Turn WFM off and tune manually near 162.000 MHz, 161.975 MHz, or 162.025 MHz.
Enable AIS Mapper in Decoder.
Use Auto, AIS-A, AIS-B, or AIS A+B depending on how you want to monitor the marine channels.
Open Full Data when you want the larger vessel-details table on a separate screen.

AIS Mapper extends ARH into marine-traffic monitoring without leaving the main interface. In v1.12 it keeps the same manual-tune AIS band workflow while adding themes, alerts, and a stronger vessel-data review path.

Heat Map Feature (v1.10)

Show / Hide Heat Map Feature

What Heat Map Adds

Live GPS-linked signal logging for a fixed target frequency or the current main receiver frequency.
OpenStreetMap-based visualization with cached local tiles and offline-only reuse for field work.
Session save/load/replay workflow with compare overlay or delta rendering for before/after checks.
Hunt Arrow guidance, footprint rings, grid overlay, GPS quality view, and peak-hold map logic.
CSV export, PNG snapshots, and JSON sessions for reporting and later review.

Typical Workflow

Start the SDR, connect GPS, and choose the target frequency in Heat Map.
Enable logging while moving through the survey area so ARH records position and power together.
Save the session, replay it later, or compare it against an older run to evaluate changes.
Use Snapshot PNG and CSV export for reports, field notes, or external analysis.

The Heatmap Tab feature transforms Khanfar RSA into a comprehensive RF survey tool, providing professional-grade geospatial signal analysis capabilities. By integrating GPS positioning, real-time signal processing, and advanced visualization techniques, users can create detailed coverage maps, locate signal sources, and document RF behavior with geographic precision.

The feature is designed for both professional RF engineers and amateur radio enthusiasts, offering intuitive controls while maintaining the technical depth required for serious analysis work. All data is stored in open formats for maximum compatibility with external analysis tools and workflows.

Heat Map storage workflow: ARH caches map tiles under map/tiles/osm, stores sessions under map/sessions, and keeps Heat Map exports local so survey work can continue even without continuous internet access. You can also use your Android phone as a GPS source for your Windows PC via the ShareGPS app; for more info, see sharegps.

All Buttons and Controls (Complete Reference)

Show / Hide Complete Reference

Device and Flowgraph

Device Dropdown	Select SDR device/type/index. Source and available sample-rate options update by device.
Initialize SDR	Detect connected devices and refresh the runtime device list from GUI without forcing immediate SDR start.
Pluto-USRP (Probe Toggle)	Enable/disable optional Pluto+ and USRP probe paths during Initialize SDR and Digital Refresh. OFF by default for faster startup on systems without those devices.
SDRPlay Runtime	Detect and start SDRPlay hardware using the same GUI workflow; requires SDRplay API/driver v3.150 on the target system.
Start	Start SDR processing and live spectrum updates.
Auto start... (Startup Priority)	Open startup automation settings. Button text shows current mode live as Auto start: ON/OFF (first device) based on saved priority.
Auto Start Settings Dialog	Configure Enable auto-start on app launch, reorder device priority with Up/Down, restore defaults with Default, and save/cancel changes.
Stop	Stop SDR processing safely and release device resources.

Radio Tab: Frequency, RF, and Display

Frequency (MHz) + Set	Enter center frequency and apply immediately.
Step Size	Select tuning step used by wheel/step actions.
Frequency Slider	Drag-tune center frequency across valid range.
PPM + Apply	Apply frequency correction for SDR oscillator offset.
PPM Calibration Tool (RTL-only)	Opens carrier-based calibration popup with Tune to carrier, Calculate, Apply to PPM, and Close controls for guided correction.
Radio Bias-T	Main Radio-path Bias-T toggle for supported devices (RTL-SDR/Airspy). Power state is applied by hardware support and active device context.
Gain Slider	Adjust RF gain. Higher gain can improve weak signal visibility but may increase noise/overload.
Sample Rate	Select SDR sample rate. Affects visible spectrum span and DSP load.
Pluto Link (Mode / IP / Apply / Auto Detect)	Configure Pluto+ transport mode (USB or Ethernet), optional IP/host, apply settings, or auto-detect and save working link values.
USRP Runtime Controls	USRP-only controls for Gain Mode, Channel (CH0/CH1), IF/BB gains, Args, Subdevice, Antenna, Clock Source, and Time Source with live status feedback, including NIC Help guidance button.
Audio Output (Device + Refresh)	Select where demod audio and test tones play (PC speakers, VB-Cable, USB audio). Use Refresh after plugging/removing devices. For Android listening, you can route NFM/AM audio via third-party SoundWire (PC server + phone app on same LAN).
Cursor Readout	Show cursor overlays and frequency readout on spectrum. In v1.06, disabling Cursor Readout force-hides the marker/crosshair overlays.
Click Calibration	Optional click-tuning enhancement toggle. OFF uses direct click tune; ON enables peak-snap and adaptive mapping calibration.
H- / H+ Crosshair Controls	Move horizontal guide line up/down in FFT area to refine crosshair alignment with active signals.
Automatic Tuning Settings	Open advanced auto-tuning popup for mode, spot-lock, min SNR, persistence, stable-time, timeout, hold, and candidate controls with Apply/Reset/profile actions.
Mask (NFM FFT Mask)	Open mask manager to enable/show masks, draw GREEN allow or RED block rectangles, manage profiles, and tune to mask targets from list. Live edit method: right-drag inside mask to move, or right-drag near edge to resize.
Operator Copilot	Open mission advisor with live runtime state, decision cards, one-click apply actions, and temporary card suppression controls.
Drag Pan	Enable mouse drag panning across spectrum.
GUI always on top	Keep the main software window above other desktop windows for monitoring-focused workflows.
Start full screen size	When enabled, the next software launch opens maximized/full-size automatically.

Radio Tab: Narrowband Audio (NFM/AM)

Enable Narrowband Audio	Enable NFM/AM demod audio chain.
Mode (NFM / AM)	Choose demod type for analog voice.
AM Presets (Aviation / HF AM / Weak DX / Int'l BC)	Quick-load recommended AM settings for airband, HF voice, weak AM, or broadcast listening.
AM RF BW / Audio BW / Transition	Set AM channel width around the carrier, recovered audio bandwidth, and filter transition width.
AM Loudness / AM AGC / Sync AM	Set AM loudness, optional AGC normalization, and carrier-locked Sync AM for weak or fading stations.
AM Center Carrier	Retune to the strongest visible AM peak in the current span to make fine tuning easier.
AM RMS Meter	Live AM audio level monitor.
Volume	Adjust narrowband audio output gain.
N-Mute / N-Unmute	Quick mute toggle for narrowband demod audio path while keeping decode/scan logic active.

Radio Tab: Squelch, Auto Cal, and Live Readouts

Squelch Toggle	Enable/disable squelch gate.
SQ line	Show/hide the live squelch threshold guide line overlay on FFT for easier threshold placement.
Squelch Threshold	Set dB threshold that must be exceeded to open squelch.
Use Level	Set threshold from current active level.
Auto Cal	Auto-calibrate squelch from measured noise floor plus margin.
Adaptive Squelch	Live adaptive mode that continuously tracks floor and applies dynamic open/close thresholds.
Smart Auto (No Manual Margins)	Computes open/close margins automatically and re-learns when SDR gain changes.
Auto Cal Result Line	Persistent green result under Auto Cal showing noise + margin to applied threshold.
Active Level / Active Freq / Last Signal	Live values for level and current/last detected frequencies.
Squelch State	Shows OPEN, SQUELCH, or IGNORED state.

Radio Tab: Scan, Hold, Peak, Profiles, and Debug

Scan Start / Stop / Step / Dwell	Configure scan range (MHz), step (kHz), and dwell time (ms).
Start Scan	Start/stop scan loop.
Pause	Pause/resume active scan without clearing settings.
Skip	Skip current active frequency and continue scan immediately.
Preset Span Buttons (5±, 10±, 20±, 40±, 80±)	Quick-set scan span around current center frequency.
Pause Scan When Squelch Opens	Hold scan while active signal is present.
Hang	Delay resume after signal closes to avoid rapid bounce.
Tune to Peak in Span	Auto-tune to strongest in-span signal when SNR exceeds threshold.
Spot-lock Until Squelch Closes	When enabled with peak-follow, latch onto one detected spot while squelch is open, then release and resume normal strongest-peak search after squelch closes.
Peak Min SNR / Offset / Peak SNR	Peak-follow threshold and live offset/SNR readouts.
Auto-Tuning Profile Controls	Activate, Save, Save as, and Delete named automatic-tuning profiles for mission-specific scan/follow behavior.
Return to Last Auto Frequency	When leaving auto mode, manual tuning can return to the last auto-locked target (or center fallback when no valid target exists).
Scan Profile (Save / Load / Delete)	Store and recall named scan configurations.
Scan Debug Panel	Colorized two-line logs for START/STOP/PAUSE/RESUME/SKIP with reason tags.
Scan Debug Clear	Clear scan debug history in GUI.

Radio Tab: Automatic Tuning Settings Popup (v1.07)

Profile + Activate	Select a named auto-tuning profile and activate it immediately (also becomes active on next launch).
Save / Save as / Delete	Save current automatic-tuning values into current profile, clone to a new profile, or delete selected profile.
Automatic Mode + Spot-lock	Enable/disable automatic peak-follow behavior and choose spot-lock hold style until squelch closes.
Minimum SNR	Set minimum SNR threshold required for peak candidates to be accepted.
Persistence Controls	Use persistence filter with Min hits, Min stable time, Candidate timeout, Release hold, Max candidates, and Min peak separation.
App info / Reset / Apply / Close	Open in-app guide, reset to default values, apply runtime changes instantly, or close popup.

Radio Tab: NFM FFT Mask Dialog (v1.07)

Enable masking / Show masks	Turn mask enforcement ON/OFF and show/hide overlay drawing on FFT.
Draw type + Start drawing	Choose GREEN allow or RED block rectangles, then click-drag on FFT to create a mask and release to save.
GREEN scope	Switch GREEN whitelist behavior between Global and Visible MSPS span only.
Profile List + Enable Checkboxes	Select active profile and enable/disable multiple profiles to run together in live masking logic.
Create/Save as/Rename/Delete Profile	Manage named mask profile sets for region, mission, or environment-specific workflows.
Mask List + Double-Click Tune	View masks in current active profile and double-click an entry to tune spectrum to that mask center frequency.
Rename selected / Delete selected / Clear all / Close	Edit mask names, remove selected masks, clear the active profile mask list, or close dialog.
Right-click Edit Mode	Right-drag inside a mask to move it, right-drag near edges to resize it, and right-click release without drag to open context menu actions.

Radio Tab: Operator Copilot Popup (v1.07)

Raw Data Panel	Live runtime snapshot: device/frequency state, scan mode, squelch behavior, masking status, and digital follow state.
Decision Cards List	Rule-based action cards with score/confidence for scan, squelch, mask, and follow alignment decisions.
Apply Selected	Execute selected recommendation immediately and update runtime + GUI state.
Ignore 30s	Suppress selected card temporarily for 30 seconds without disabling Copilot.
Analysis Feed + Always on top + Close	Read live reasoning/event feed, keep Copilot window pinned above main GUI, or close popup.

Detections Tab

Detection Table	Detected frequency list with Active, Frequency, Hits, Last Seen.
Enable list filtering (skip inactive during scan-hold)	Use active/inactive detection state directly in scan-hold decisions and skip inactive rows when filtering is enabled.
Smart Deactivate + After	Auto-mark busy channels inactive after continuous-open duration.
Busy Rule (Hits in Seconds)	Second smart-deactivate layer for persistent multi-carrier busy conditions.
Signal Stability	Enable debounce filter with Min Open and Grace timing.
Apply To Toggles	Choose where stability is applied: Detection, Rec+Alerts, Scan Hold, Audio Out.
Set Inactive / Set Active	Change selected detection rows to inactive/active.
Copy → Favorites	Copy selected detection rows to favorites list.
Delete / Delete All	Remove selected rows or clear full detection list.
Skip Last Signal	Quick action on most recent detected signal.
Detection Profile (Save / Load / Delete)	Store and recall named detection configurations.

Favorites Tab

Profile + New / Ren / Del	Manage favorites profiles.
Monitor Favorites	Mute non-favorite channels when signal is open.
Scan Favorites Only	Restrict scan hopping to active favorite entries.
Cooldown (min) + Mute Sel + Clear	Temporarily mute selected favorites, then auto-reactivate after cooldown.
Last Signal	Last favorite hit readout for quick monitoring.
Add (MHz + Label)	Add a manual favorite frequency with optional label.
Favorite Table	Columns: On, MHz, Label, Hits, Seen, CD (cooldown).
Set Active / Set Inactive / Delete	Activate, deactivate, or remove selected favorite entries.
Info	Show app information dialog.
Learning Mode (Toggle)	Enable hover help for controls across the GUI (tables intentionally excluded).

WFM Tab (Broadcast FM)

Enable WFM (listen)	Enable broadcast WFM audio chain.
De-emphasis (50/75 us)	Select regional de-emphasis standard.
WFM Volume	Adjust WFM audio output level (v1.06 safety cap: max 0.70x).
WFM lock DSP (fixed audio path)	Lock WFM DSP routing to a fixed audio-path behavior for stable operation in long monitoring sessions.
Tuned + Rate Labels	Show current tuned WFM frequency and effective processing rate.
Extended Buttons	Toggle multi-row WFM footer controls (seek, mute, quick steps, gain/volume/fosphor shortcuts, and quick presets).
Extended Footer Button Labels	Includes exact quick labels such as Seek < / Seek >, 100k < / 100k >, Vol- / Vol+, dB- / dB+, Ref- / Ref+, Split- / Split+, and Cursor OFF.
Preset Buttons + Add	Quick-tune presets, add new presets, and use long-press preset actions.
100k Left / Right + FM Band	Fast stepping and one-click tune to FM band center.
WFM Sample Rate	Device-aware sample-rate selector in WFM tab, synced with main Radio sample-rate controls.
WFM Cursor line + readout / Drag to pan spectrum	Display cursor line/readout and enable drag-based panning controls while in WFM mode.
WFM Hover Readout	Hover frequency stays live in WFM even when cursor line is hidden; extended footer shows tuned, gain, and hover values together.

Digital Tab (DSD+ OP25 + DSD-NEO v1.07)

Start / Stop / Restart / Apply	Run, stop, restart, or apply Digital-path settings depending on selected digital mode.
Freq MHz + Tune - / Tune + + Step kHz	Live digital frequency readout with manual tune nudges and adjustable step-size in kHz.
Offset kHz	Apply positive/negative tuning offset for digital receiver correction (useful when PPM path is limited on some backends).
Main MHz + Set	Set digital main frequency source from manual input and apply immediately.
Gain + G- / G+	Set digital gain directly or nudge it with increment/decrement buttons.
BW kHz + B- / B+ + Lock BW hints	Set digital decode bandwidth, quick adjust with B-/B+, and optionally lock bandwidth against runtime hint overrides.
PPM + P- / P+	Set digital PPM correction directly or adjust using quick increment/decrement buttons.
Squelch ON	Enable/disable digital-path squelch behavior for source-audio monitoring when sync is absent.
Airspy L/M/V	Digital-path Airspy gain controls for LNA, Mixer, and VGA stages.
SDR L / IF / Noise (SDRPlay)	Digital-path SDRPlay controls for LNA state, IF gain, and noise-filter profile.
NEO Toggle	OFF uses original digital flow. ON uses DSD-NEO runtime flow and NEO settings panel.
Use Control Frequency List	When enabled, Digital runtime follows frequencies from the control channel list. When disabled, v1.07 follow-main behavior can align decode flow to main GUI active frequency.
Follow Main Active (Control List OFF)	With control-list trigger OFF, DSD/NEO can follow active main frequency updates during live operation.
TK Follow	Talkgroup cursor-follow toggle (UI label in code appears as TK folow): when Digital runtime is active, cursor can follow live talk frequency from trunk data; turning it ON forces manual tuning mode.
cc RTLv2 Report	Starts live control-channel scan/report flow with fixed 8-second validation per candidate and compact export output.
Extract Report	Exports a compact one-sheet summary report from current digital activity into Smart Tool folder.
Channel Activity + Log Analytics	Shows normalized activity rows and live analytics/error-burst visibility for active Digital sessions.
RTL Device + Refresh RTL	Select target RTL index for digital decode path and refresh available devices from GUI. Refresh also follows the Pluto-USRP probe toggle state.
Control Lock Indicator	Shows lock status for control-list gating logic (LED + label) so operators can verify list-control state quickly.
Control Channel List	Store and click known control channels for quick activation and follow switching.
Control Channel List Actions	Use Add, Update, Rename, and Delete to manage known control channels directly from the Digital tab.
Find CC / Constellation Tools	Detect OP25 control channels using Find CC, Fixed View, or Classic Sweep workflows.
Const + Show Const	Const enables constellation validation layer for finder logic, and Show Const opens/toggles real-time constellation popup view.
Talk Alert (TOT) + Tone + Test	Enable digital talk alert tone, choose tone profile, and test it from Digital tab.
Footer: Digital live + Tactical	Switch footer to live digital metrics and open Digital Tactical Center (health, policy profiles, timeline, OP25 adapter workflow).
Hide Digital Mode / Hide Talk Signals	Collapse or expand Digital Mode and Active Talk Signals panels to optimize workspace on smaller screens.
Digital Status + Heartbeat	Shows idle/starting/running/stopped state and live activity indicators while Digital runtime is active.
Mode	Select DSD-NEO decode/profile mode for the active digital workflow.
SQL	NEO squelch threshold. Recommended starting point is around -70, then tune by site/noise conditions.
BW (12 / 24 / 48)	Decoder bandwidth preset for NEO path. 24 or 48 kHz are common trunk workflow starting points.
Gain / PPM / Vol / Dig Gain	RF and decode-path adjustment controls for NEO operation and audio quality tuning.
Trunk + UDP Ctrl	Enable trunking behavior and ARH-to-NEO UDP control path for tuning/follow operations.
Bias-T	Enable bias power on supported RTL hardware when required by active RF setup.
Auto PPM + Auto PPM SNR	Enable automatic PPM correction and control SNR behavior threshold for correction decisions.
Auto PPM Result Label	Shows live correction outcome/status next to Auto PPM controls for fast validation.
Follow Group / Follow Private / Follow Data / Follow Encrypted	Choose which trunk activity types ARH/NEO should follow in live operation.
TG Hold / Hang s	Hold on selected talkgroup and control release hang-time behavior.
Channel CSV / Group CSV	Browse and apply channel/group maps for trunk/call label handling.
Key CSV Dec / Key CSV Hex	Import decimal/hex key lists, then apply when needed for supported decode workflows.
BP Key / Force Key / Force RC4 / RC4 Key / H Key / Stream Key	Manual key/privacy controls for supported call handling paths in NEO mode.
Disable DMR Late Entry	Toggle late-entry behavior handling for DMR decode logic.
Auto Apply	When enabled, applies required runtime setting changes automatically on eligible edits.
Call Info Log	Shows recent digital call activity lines. Optimized to keep recent lines and avoid heavy UI load.
NEO Recording	Enable per-call recording for NEO path (default OFF). Files are written to ARH recordings folder.
Smart Tool	Opens helper popup to build valid Channel/Group/Key CSV files and DMR Tier III LCN helper data.

Decoder Tab (v1.08)

Backend Selector (External Apps / Internal Beta)	Choose decoder backend mode. External Apps launches WSJT-X/FLdigi/SSTV apps. Internal Beta enables in-app RTTY and PSK31/PSK63 decode paths (plus internal FT8 workflow).
Mode / Preset Selector	Select decoder workflow presets such as FT8, FT4, RTTY U, RTTY L, PSK, PSK31, PSK63, and SSTV. Preset tuning applies mode hints and practical tune-step defaults.
Preset Frequency List + Apply/Tune	Shows common working frequencies for selected decoder mode. Clicking a preset tunes ARH and aligns mode behavior for decode workflows.
Device (Decoder Audio Output) + Refresh	Set decoder-path audio output routing directly from Decoder tab (mirrors Radio Audio Output). Use VAC/loopback routing as needed for external decoder input.
Require NTP Sync Before FT8/FT4 Start	When enabled, FT8/FT4 workflow requires valid timing offset before start to avoid decode errors from clock drift.
NTP Host	Set NTP server target (for example `pool.ntp.org`) used by offset checks and sync attempts.
Check Offset	Measure current clock offset and show timing status for FT8/FT4 readiness.
Sync Clock	Request Windows time resync for better FT8/FT4 timing. If offset already shows OK, decoding can still proceed even when Windows time service is not running.
CAT Bridge Enable (Hamlib rigctl TCP)	Enable/disable built-in CAT bridge so WSJT-X/FLdigi can follow ARH frequency and mode state.
CAT Host / Port + Apply	Set rigctl TCP bind target (default localhost style workflow) and apply listener settings for decoder CAT clients.
CAT Status	Shows bridge state and client activity so operators can confirm decoder app connection.
WSJT-X Path + Browse + Start / Stop	Set executable path (or use PATH-resolved command), launch/stop WSJT-X from Decoder tab, and monitor run state.
FLdigi Path + Browse + Start / Stop	Set executable path and launch/stop FLdigi for RTTY/PSK external decode workflows.
SSTV App Path + Browse + Start / Stop	Set QSSTV/MMSSTV-compatible executable path and launch/stop the selected SSTV decoder app.
Decoder Status Line / Notes	Live status area reports app launch results, NTP timing checks, and CAT bridge guidance (CAT is control-only; audio routing is separate).

Digital Tab: cc RTLv2 Report Popup

When It Appears	Opens when cc RTLv2 Report is clicked in Digital tab.
Live Scan Status Panel	Shows current frequency, status, elapsed time (Elapsed: 00:00), and counters (Scanned: ... / Detected CC: ... / Skipped: ...) during scan.
Enhance scan with H-line + H- / H+	Optional H-line filter workflow with fast level nudges to improve candidate quality in noisy conditions, including live level readout (H-line: -- dB).
Start / Finish / Close	Start live report scan, finish current run safely, or close popup while preserving runtime state handling.
Live Log Box	Scrollable real-time action log for validation results and scan progress.

Digital Tab: Tactical Center Popup

When It Appears	Opens when Tactical is clicked beside Footer: Digital live.
TG Policy Controls	Enable TG policy, profile selector, New / Rename / Delete, Profile enabled, plus exact policy fields: Priority TG list, Deny TG list, and Record TG list.
Save Policy	Commit active TG policy profile values to runtime + settings storage.
Session Timeline	Enable timeline with Export JSON, Clear, and Add Snapshot actions.
OP25 External Adapter	Enable OP25 adapter, set executable/arguments, and control adapter process with Start OP25 and Stop OP25.
Window Utilities	Live health/status line plus Always on top and Close controls.

Digital Tab: Constellation Popup

When It Appears	Opens from Show Const in Digital control-channel tools.
View Header + Runtime State	Header describes Realtime digital modulation view (NFM path); status line shows readiness (for example Waiting for NFM + running radio...).
View + Source	Switch visualization between Const/Eye and source mode Control/Active.
Auto Catch Suite	Run Auto Catch with tunable Delay ms and scan mode (Fixed View or Classic Sweep).
Sweep + Quality Controls	Set sweep From/To/Step and adjust Q4% quality threshold used by auto-catch logic.

Digital Tab: Smart Tool Popup (NEO CSV + LCN)

When It Appears	Opens when Smart Tool is clicked in Digital tab.
General Utility	Open Folder opens Smart Tool output directory used for generated CSV/report files.
CSV Builder Tabs	Channel/Group/Key tabs include Add Row, Remove Selected, Clear, and Save CSV actions with optional immediate apply.
DMR TIII LCN Tool	Includes Quick Paste + Import, optional CC Freq (optional) and CC LCN (optional), Step Hz (0=auto), Start LCN, file-name fields for LCN Input CSV and Output Channel CSV, then Save Input CSV and Run LCN Calculator to generate channel map output.

Web Control, Log Monitor, and Team Wall (LAN)

Start Web / Stop Web (GUI)	Enable or disable the built-in LAN web server.
Firewall Allow (Windows Popup / allow-lan-server.exe)	Allow LAN access either from the Windows security popup when starting web server or by running `allow-lan-server.exe` from app folder.
Open (GUI)	Open Web Control page in browser.
Web Pages: Connection Badge + Favicon	Web Control, Log Page, and Team Wall show live server connection state (green/red) and page-specific browser tab icon.
Port + Apply (GUI)	Set web server port; if server is running it restarts on the new port.
Web Control: Freq / Tune Step kHz / Gain / PPM	Remote frequency tuning, kHz step nudge, gain update, and PPM correction from browser.
Web Control: WFM / NFM Mode Buttons	Remote mode switching with mutual-exclusion popup protection (disable one mode before enabling the other).
Web Control: Manual Tuning / Automatic Tuning	Manual turns OFF "Tune to peak in span"; Automatic turns it ON (same runtime logic as GUI).
Web Control: LAN Live Audio Stream	Provide a live demod-audio stream URL for same-LAN browser clients so operators can monitor audio remotely in near real time.
Web Control: Log Page	Open live log monitor page with detection list, favorites list, scan debug, metrics, and heat-color activity rows (same monitor is embedded in Team Wall).
Web Control: Team Wall	Open shared LAN collaboration page with login, roles, notes/tags, claims, action feed, and integrated live log monitor.
Team Wall: Host Admin / Login / Logout	Authenticate operators with account-based access; host admin bootstrap is local-host only.
Team Wall: Admin User Management	Admin can add/update/delete users, assign observer/controller/admin roles, and enable/disable accounts.
Team Wall: Join / Update	Admin-only panel for setting display operator name and presence state.
Team Wall: Save Note / Delete Note	Add or remove shared tag/note entries on selected or active frequency (observer/controller/admin roles).
Team Wall: Claim / Release	Reserve a frequency while handling it, then release when finished; includes conflict protection for already-claimed channels.
Team Wall: Back Control Shortcut	Admin-only quick link back to Web Control page; hidden for observer/controller roles.
Team Wall: Clear Wall Data	Admin-only reset for shared wall activity data; persistent storage is updated immediately.

Histogram Controls

Histogram IQ Rec	Start/stop integrated IQ recording + Histogram viewer session.
Launch Interlock	Histogram start is blocked while WFM/NFM/AM is active, with guidance popup.
Pause	Pause/resume histogram IQ flow.
Realtime / Last Follow / Follow Freq	Live status labels for capture and follow target state.
Play Speed / FFT / Zoom	Control Histogram rendering speed and analysis detail.
Power Min / Power Max	Adjust display power scale limits.
Vertical View / Scales	Toggle orientation and scale overlays.
Follow Tuned/Last Signal	Automatically follow tuned frequency or latest active signal.
Hold Follow When Idle	Keep last follow target fixed during idle periods.
Pause Flow When Idle	Auto-pause histogram flow while no active NFM/AM signal is present.

Recorder Tab

Folder + Browse + Open	Set recording output folder and open it in explorer.
Auto-record on Squelch OPEN	Start recording automatically when squelch opens.
Stop Delay	Delay stop after close to avoid fragmenting speech.
Start Recording	Manual recording toggle.
Timestamp / Frequency in Name	Add time and/or frequency metadata to WAV filename.
Record Even When Muted	Continue recording even when audio output is muted by logic.
Beep on Favorite (TOT)	Play one short TOT-style alert on favorite activity.
Favorite TX Tones	Enable radio-style tone alerts for favorite TX edges.
Play Edge	Choose tone trigger point: start, end, or both.
Start Tone / End Tone	Select tone patterns (Off, Tone 1 to Tone 9).
Test Start / Test End	Preview selected tones instantly through the currently selected Audio Output device.
Event Log + Clear	Compact event table with Time, Evt, MHz, Note and event heatmap colors, with Clear Log action to wipe visible event history.
Min Voice	Minimum open duration required before auto-record starts (filters very short pulses).

Status Bar and Visual Indicators

AutoCal Status Label	Persistent yellow status text for latest calibration result/warnings.
Live Metrics	Colorized status metrics: Last, Active, Fav, Peak, and Level.
Heatmap Rows	Detection/Favorites/Recorder rows are colorized by activity state/event type.
Selection Behavior	Selection keeps heatmap background visible and highlights text/row for readability.

Analysis Tab (v1.09)

Mask Trigger	Choose Freerun, Inside Mask, Outside Mask, Entering Mask, or Leaving Mask and tune sensitivity, hold time, and dB offset for analysis-driven event detection.
POI Monitor	Logs power/frequency behavior changes into the Analysis table using configurable thresholds and row limits. Includes Clear and Export CSV actions.
Trigger Actions	Lets Analysis events pause scan, start recorder, add favorites, play an alert, or raise a popup using configurable trigger source and cooldown logic.
Band Intelligence + Candidates	Shows top frequencies, per-band activity statistics, and candidate scoring so you can tune, bookmark, scan, or set ranges directly from analysis results.
Smart Priority / Adaptive Dwell	Adds strength-based scan priority, lookahead, idle/busy dwell multipliers, and smart fallback helpers for unstable scan conditions.

IQ R-P Tab (v1.09)

Start Recording / Stop Recording	Captures live IQ into DAT+META or DGZ+DGZM recording sets directly from the tab with live status feedback.
Import CFG / Apply Imported CFG / Export CFG	Imports or exports playback-related configuration so recorded IQ sessions can reopen with matching context and tuning assumptions.
Load IQ File / Return to Live	Swaps the active source between live SDR and recorded IQ playback without leaving the main runtime workflow.
Playback Analyzer Popup	Opens FFT, waterfall, power-vs-time, or I/Q analyzer views for playback sessions. Gamma-style FFT view is supported from the playback analyzer path.
Enable Modulation Audio in Playback	Routes IQ playback through the normal demod chain so you can tune and listen to recorded RF with the same radio controls used in live mode.

3 Layers Gamma FFT Tab (v1.09)

3 Layers Main Controls	Set palette, background, FFT size, decay, size, floor, and position while the fully customized 3 Layers Gamma FFT view runs from the current SDR stream.
G2 / G3 Overlays	Add independent second and third Gamma layers with their own enable state, size, floor, decay, and color for fully customized 3-layer rendering.
Mix Presets	Save, update, delete, and reuse full 3-layer Gamma mixes. Fresh-run defaults now include built-in example presets m1, m2, and m3.
Art Modes	art1 to art4 provide alternate analyzer-style rendering for the 3-layer Gamma FFT system, including interactive legend toggles and more stylized spectrum/waterfall behavior.
Second Gamma Box	Enable a second 3 Layers Gamma FFT pane, place it above or below the first pane, choose its own settings/presets, and resize the Gamma/Gamma split by mouse.
3D FFTv1 / v2 / v3	Open floating Gamma-linked 3D viewers for alternate spectrogram, spike, or rolling-surface presentations. Clean-view toggles let the 3D windows be placed on another screen with minimal chrome.

Pure DSP (v1.12)

Pure DSP Toggle	Switch AM / USB / LSB between the normal ARH workflow and the alternate Pure DSP path without affecting the rest of the radio runtime.
Pure DSP Config	Open the dedicated Pure DSP popup for AM RF/AF bandwidth, low cut, bandpass boxcar, PLL sync, DSB/USB/LSB sync selection, and SSB low/high cut, AGC, and filter-bank slot controls.
Pure DSP Reset	Restore the Pure DSP popup settings to the fresh-run default values.

Internal Decoder Beta (v1.11)

FT8 Monitor / Output	Show internal FT8 decodes in the live table and text output area with UTC, SNR, dt, Hz, and decoded message fields.
Log FT8 Messages / Open Logs	Enable daily internal FT8 text logging and open the local FT8 logs folder directly from the Decoder tab workflow.
Enable Morse Decoder / Clear Morse	Run the independent Morse Decoder box in parallel with other Decoder-tab work and clear its current output buffer.
Auto Pitch/Speed / Lock Current	Let the Morse Decoder estimate tone pitch and speed automatically, or lock the current estimate into manual operation.
Pitch / Speed	Set manual Morse decode tone frequency in Hz and decode speed in WPM when auto tracking is not appropriate for the current signal.

FT8 Geo Mapper (v1.11)

FT8 Geo Mapper Toggle	Open or hide the embedded FT8 station map in the live split view while preserving the rest of the Decoder workflow.
World / Center Latest	Reset the map to a world overview or center on the most recent mapped FT8 station.
Offline Only / Clear Map	Force cached-tile-only operation for field or offline use, or clear the accumulated FT8 station map/history state.

ADS-B / Aircraft Mapper (v1.12)

Enable ADS-B 1090 / Clear Aircraft / Icon	Start or stop the manual-tune ADS-B aircraft workflow and clear the current aircraft list/map state when needed.
ADS-B Requirements	Use ADS-B with the SDR already running, sample rate at 2.0 MS/s or higher, WFM disabled, and the receiver tuned manually near 1090.000 MHz.
Embedded Aircraft Map	Show aircraft on the embedded map with ICAO, callsign, altitude, groundspeed, heading, and decoded position when valid CPR pairs are available.
Local CPR / Ref Lat / Ref Lon / Use Map / Pick Home	Enable local CPR fallback, set a reference location manually, copy the current map center, or pick a visible home/reference point directly on the map for short captures and incomplete CPR pairing.
Theme / Alert / Test Alert	Select Light or Dark map theme and choose Off, Beep, Tot, or Girl Voice alert mode for newly positioned aircraft.

AIS Mapper (v1.12)

Enable AIS Mapper / Clear Vessels	Start or stop the manual-tune AIS workflow and clear the current vessel list and vessel-map state when needed.
Channels	Select Auto, AIS-A, AIS-B, or AIS A+B. Use AIS A+B when you want to watch both real AIS channels together; 162.000 MHz is the midpoint, not a third AIS channel.
AIS Requirements	Use AIS with the SDR already running, sample rate at 100 kS/s or higher, WFM disabled, and the receiver tuned manually near 162.000 MHz, 161.975 MHz, or 162.025 MHz.
World / Center Latest / Offline Only / Clear / Close	Reset the vessel map view, center on the latest vessel, force cached-tile-only map use, clear the vessel map, or close the embedded AIS panel safely.
Theme / Alert / Test Alert / Full Data	Select Light or Dark theme, choose Off, Beep, Tot, or Girl Voice alert mode, test the selected alert, or open the floating Full Data vessel window for the wider AIS table.

ATV Demodulator (v1.12)

Enable ATV / Reset Sync / Close	Start or stop the analog ATV workflow, reset sync alignment when needed, and close the embedded split-view ATV panel safely.
FM-A / FM-B / FM-C / AM	Select the analog ATV demod mode. FM-C is the most accurate FM-oriented mode, while FM-A and FM-B offer alternate tuning behavior.
Monitor / Scope	Use the popup Monitor tab for the live grayscale TV picture and the Scope tab to help tune sync, levels, and picture alignment.

DATV Receiver (v1.12)

Enable DATV Receiver	Start or stop the hybrid DATV workflow that forwards live IQ into the optional external LeanDVB backend.
Standard / Symbol Rate / Constellation / Code Rate / Sampler / Rolloff / Offset	Set the DVB-S receive parameters used by the DATV backend before attempting lock and transport-stream playback.
DATV Backend / DATV Player	Choose the optional external `leandvb.exe` path and the external player path such as VLC or ffplay. DATV can also find `DATV\\leandvb.exe` automatically next to the app.
Launch Player / Stop Player	Start or stop the external player process that consumes the UDP transport stream after DATV lock is achieved.

Heat Map Tab (v1.10)

Logging / Follow Main / Target Frequency	Turn Heat Map logging on or off, follow the main receiver frequency, or map a fixed target frequency with manual entry and Use Current helper.
GPS Port / Refresh / Baud / Start GPS / Stop GPS	Select the GPS COM port, refresh available ports, choose Auto or a fixed baud rate, and control the GPS reader lifecycle.
Open Heat Map / Offline Only / Download View	Show the Heat Map display, force cached-tile-only operation, or pre-download the visible map area for offline field use.
Auto Center / Grid / Peak Hold / GPS Quality	Choose map recentering behavior, enable a distance grid, keep strongest-per-location data, and show richer GPS-quality metrics in the map/status workflow.
Footprint / Hunt Arrow / Geofence Alert	Control coverage-ring rendering, directional Hunt Arrow guidance, and live weak/strong/range threshold alerts with hold/cooldown logic.
Compare Session / Clear Compare	Load a second saved session and compare it using overlay or delta mode, then clear the compare layer when finished.
New Session / Save Session / Load Session / Replay	Start a fresh survey, save or reopen JSON sessions, replay the active route with speed and timeline controls, and stop replay to return to live logging.
Snapshot PNG / Export CSV	Create report-ready PNG screenshots of the current map view and export current samples as CSV for spreadsheet or scripting workflows.

Signal Stability Filter: Logic and Tuning

Show / Hide Signal Stability Filter: Logic and Tuning

How It Works

Purpose: suppress short squelch flicker and noisy open/close chatter.
Min Open (ms): raw squelch must stay open for this minimum time before stable-open becomes true.
Grace (ms): after raw close, stable-open is held this extra time to ignore tiny dropouts.
Routing is selectable per target: Detection, Rec+Alerts, Scan Hold, and Audio Out.
Raw state still updates live indicators; selected targets use stabilized state for cleaner behavior.

Recommended Setup

Start with Min Open 150-250 ms.
Start with Grace 40-80 ms.
If very short real calls are missed, reduce Min Open.
If pause/resume or alerts still chatter, increase Grace first, then slightly raise Min Open.
Enable Audio Out routing if you want speaker output to ignore unstable pulses too.

Typical use case: noisy channels where very short false openings cause scan bounce, false logging, or speaker clicks. Signal Stability smooths this without over-blocking real voice traffic.

Adaptive Squelch Smart Auto Feature in our software

Live simulation of how Smart Auto tracks the noise floor and places open/close thresholds above it with hysteresis. Move the sliders to tune conditions and watch threshold behavior in real time.

SQUELCH CLOSED

Live level Noise floor Open threshold Close threshold

Base Noise Floor -63.0 dB

Noise Jitter 1.8 dB

Burst Chance 9%

Burst Strength 20.0 dB

SDR Gain Shift 0.0 dB

Auto Base Margin 6.0 dB

Manual Open Margin 6.0 dB

Manual Close Margin 3.0 dB

Smart Auto mode Pause simulator

Noise Floor--

Open Threshold--

Close Threshold--

Open Margin--

Close Margin--

Adaptive Squelch: How to Use

Smart Auto ON (recommended): no manual open/close input required. The software tracks noise floor and builds dynamic Open/Close thresholds automatically.
Smart Auto OFF (manual adaptive): you set Open Thr and Close Thr yourself for direct control, while adaptive floor tracking still follows RF baseline changes.
Main difference: Smart Auto computes margins for you; manual adaptive keeps your selected thresholds/margins and uses them as operator-driven tuning.

When to Use Each Mode

Use Smart Auto for changing environments (mobile use, wide scan, changing gain, mixed activity bands).
Use manual adaptive when you know the channel behavior and want fixed operator preference for Open/Close response.
Use fixed manual squelch + Auto Cal when you want the fastest simple baseline without adaptive behavior.

Recommended Easy Workflow

Enable squelch and press Auto Cal once to measure current noise and apply a quick baseline threshold.
Enable Adaptive squelch and keep Smart Auto ON for no-input operation.
Use Smart trim -1/+1 for fine adjustment: +1 is stricter (fewer false opens), -1 is more sensitive (better weak-signal opening).
If you still want manual control, turn Smart Auto OFF and set Open/Close directly (Open above Close for hysteresis).

Example Cases

Quiet channel misses weak calls: use Smart trim -1 or lower manual Open slightly.
Noisy band opens too often: use Smart trim +1 or increase manual Open.
Gain changed during operation: Adaptive runtime re-learns, then re-stabilizes thresholds automatically.

Auto Cal button (easy start): Auto Cal samples recent channel level, estimates environmental noise floor, then applies a practical squelch threshold (noise + margin). It gives a strong starting point before or alongside adaptive workflows.

Busy carrier handling: Smart Auto is designed with carrier-protection logic so strong always-on carriers do not directly pull the learned floor to incorrect values. The scanner also uses persistence filtering for peak-follow retune/open decisions, which helps reject one-shot spikes and keep behavior stable around active carriers.

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Disclaimer

DISCLAIMER: This software and tutorial are for educational and scientific purposes only. Khanfar RSA is a tool designed for receiving publicly accessible radio signals. I do not condone or encourage the interception of private, encrypted, or unauthorized communications. Users are solely responsible for complying with their local radio regulations (e.g., FCC in the US, Ofcom in the UK). This software is provided "AS IS" without any warranties.

One operator console for scan, decode, RF mapping, and replay.

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Khanfar RSA at a Glance

Supported SDR Paths

Mission Packs

Reactive Scan

Decoder Bench

SWL + HF

Mapping

Analysis + Replay

Wi-Fi + LTE

Gamma Visuals

SWL and HF Monitoring

Built for practical shortwave work

Current Focus

Unified Product Story

SWL + HF First

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Reference Moved Out Cleanly

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