docs: Update version to 2.10.0 and document DSC features

- Bump version to 2.10.0 in config.py and pyproject.toml
- Add scipy/numpy dependencies for DSC signal processing
- Add CHANGELOG entry for 2.10.0 release
- Update README.md features list with vessel tracking
- Add AIS Vessel Tracking and VHF DSC section to FEATURES.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to iNTERCEPT will be documented in this file.
 
-## [2.10.0] - 2026-01-24
+## [2.10.0] - 2026-01-25
 
 ### Added
 - **AIS Vessel Tracking** - Real-time ship tracking via AIS-catcher
@@ -11,17 +11,30 @@ All notable changes to iNTERCEPT will be documented in this file.
   - Navigation data: speed, course, heading, rate of turn
   - Ship type classification and dimensions
   - Multi-SDR support (RTL-SDR, HackRF, LimeSDR, Airspy, SDRplay)
+- **VHF DSC Channel 70 Monitoring** - Digital Selective Calling for maritime distress
+  - Real-time decoding of DSC messages (Distress, Urgency, Safety, Routine)
+  - MMSI country identification via Maritime Identification Digits (MID) lookup
+  - Position extraction and map markers for distress alerts
+  - Prominent visual overlay for DISTRESS and URGENCY alerts
+  - Permanent database storage for critical alerts with acknowledgement workflow
 - **Spy Stations Database** - Number stations and diplomatic HF networks
   - Comprehensive database from priyom.org
   - Station profiles with frequencies, schedules, operators
   - Filter by type (number/diplomatic), country, and mode
   - Tune integration with Listening Post
   - Famous stations: UVB-76, Cuban HM01, Israeli E17z
+- **SDR Device Conflict Detection** - Prevents collisions between AIS and DSC
+- **DSC Alert Summary** - Dashboard counts for unacknowledged distress/urgency alerts
 - **AIS-catcher Installation** - Added to setup.sh for Debian and macOS
 
 ### Changed
 - **UI Labels** - Renamed "Scanner" to "Listening Post" and "RTLAMR" to "Meters"
 - **Pager Filter** - Changed from onchange to oninput for real-time filtering
+- **Vessels Dashboard** - Now includes VHF DSC message panel alongside AIS tracking
+- **Dependencies** - Added scipy and numpy for DSC signal processing
+
+### Fixed
+- **DSC Position Decoder** - Corrected octal literal in quadrant check
 
 ---
 

README.md

@@ -29,7 +29,7 @@ Support the developer of this open-source project
 - **Pager Decoding** - POCSAG/FLEX via rtl_fm + multimon-ng
 - **433MHz Sensors** - Weather stations, TPMS, IoT devices via rtl_433
 - **Aircraft Tracking** - ADS-B via dump1090 with real-time map and radar
-- **Vessel Tracking** - AIS ship tracking via AIS-catcher with maritime map
+- **Vessel Tracking** - AIS ship tracking with VHF DSC distress monitoring
 - **ACARS Messaging** - Aircraft datalink messages via acarsdec
 - **Listening Post** - Frequency scanner with audio monitoring
 - **Satellite Tracking** - Pass prediction using TLE data

config.py

@@ -15,10 +15,10 @@ CHANGELOG = [
         "version": "2.10.0",
         "date": "January 2026",
         "highlights": [
-            "AIS vessel tracking with real-time maritime map",
+            "AIS vessel tracking with VHF DSC distress monitoring",
             "Spy Stations database (number stations & diplomatic HF)",
-            "Multi-SDR support for AIS (RTL-SDR, HackRF, LimeSDR, etc.)",
-            "UI improvements: renamed modes for clarity",
+            "MMSI country identification and distress alert overlays",
+            "SDR device conflict detection for AIS/DSC",
         ]
     },
     {

docs/FEATURES.md

@@ -57,6 +57,31 @@ Complete feature list for all modules.
   <img src="/static/images/screenshots/screenshot_radar.png" alt="Screenshot">
 </p>
 
+## AIS Vessel Tracking
+
+- **Real-time vessel tracking** via AIS-catcher or rtl_ais
+- **Full-screen dashboard** - dedicated popout with maritime map
+- **Interactive Leaflet map** with OpenStreetMap tiles (dark-themed)
+- **Vessel trails** - optional track history visualization
+- **Vessel details popup** - name, MMSI, callsign, destination, ship type, speed, heading
+- **Country identification** - flag lookup via Maritime Identification Digits (MID)
+
+### VHF DSC Channel 70 Monitoring
+
+Digital Selective Calling (DSC) monitoring on the international maritime distress frequency.
+
+- **Real-time DSC decoding** - Distress, Urgency, Safety, and Routine messages
+- **MMSI country lookup** - 180+ Maritime Identification Digit codes
+- **Distress nature identification** - Fire, Flooding, Collision, Sinking, Piracy, MOB, etc.
+- **Position extraction** - Automatic lat/lon parsing from distress messages
+- **Map markers** - Distress positions plotted with pulsing alert markers
+- **Visual alert overlay** - Prominent popup for DISTRESS and URGENCY messages
+- **Audio alerts** - Notification sound for critical messages
+- **Alert persistence** - Critical alerts stored permanently in database
+- **Acknowledgement workflow** - Track response status with notes
+- **SDR conflict detection** - Prevents device collisions with AIS tracking
+- **Alert summary** - Dashboard counts for unacknowledged distress/urgency
+
 ## Satellite Tracking
 
 - **Full-screen dashboard** - dedicated popout with polar plot and ground track

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "intercept"
-version = "2.9.5"
+version = "2.10.0"
 description = "Signal Intelligence Platform - Pager/433MHz/ADS-B/Satellite/WiFi/Bluetooth"
 readme = "README.md"
 requires-python = ">=3.9"

requirements.txt

@@ -10,6 +10,10 @@ bleak>=0.21.0
 # Satellite tracking (optional - only needed for satellite features)
 skyfield>=1.45
 
+# DSC decoding (optional - only needed for VHF DSC maritime distress)
+scipy>=1.10.0
+numpy>=1.24.0
+
 # GPS dongle support (optional - only needed for USB GPS receivers)
 pyserial>=3.5