{# Help Modal Partial Provides consistent help modal across all pages #}

iNTERCEPT Help

Stats Bar Icons

POCSAG messages decoded
FLEX messages decoded
Total messages received
Unique sensors detected
Device types found
Satellites monitored
WiFi Access Points
Connected WiFi clients
Captured handshakes
Detected drones (click for details)
Rogue APs (click for details)
Bluetooth devices
BLE beacons / APRS stations

Mode Tab Icons

Pager - POCSAG/FLEX decoder
433MHz - Sensor decoder
Meters - Utility meter decoder
Aircraft - ADS-B tracking & history
Vessels - AIS & VHF DSC distress
APRS - Amateur radio tracking
Listening Post - SDR scanner
Spy Stations - Number stations database
Meshtastic - LoRa mesh networking
WebSDR - Remote SDR receivers
SubGHz - Sub-GHz signal analysis
WiFi - Network scanner
Bluetooth - BT/BLE scanner
BT Locate - Bluetooth device locator
TSCM - Counter-surveillance
Satellite - Pass prediction
ISS SSTV - Space station image decoder
Weather Sat - NOAA & Meteor imagery
HF SSTV - Shortwave image decoder
GPS - GNSS signal analysis
Space Weather - Solar & geomagnetic data

Pager Mode

  • Decodes POCSAG and FLEX pager signals using RTL-SDR
  • Set frequency to local pager frequencies (common: 152-158 MHz)
  • Messages are displayed in real-time as they're decoded
  • Use presets for common pager frequencies

433MHz Sensor Mode

  • Decodes wireless sensors on 433.92 MHz ISM band
  • Detects temperature, humidity, weather stations, tire pressure monitors
  • Supports many common protocols (Acurite, LaCrosse, Oregon Scientific, etc.)
  • Device intelligence builds profiles of recurring devices

Utility Meter Mode

  • Decodes utility meter transmissions (water, gas, electric) using rtlamr
  • Supports ERT protocol on 912 MHz (North America) or 868 MHz (Europe)
  • Displays meter IDs and consumption data in real-time
  • Supports SCM, SCM+, IDM, NetIDM, and R900 message types

Aircraft (Dashboard)

  • Opens the dedicated ADS-B Dashboard for aircraft tracking
  • Features radar scope, map view, airband audio, and ACARS decoding
  • Optional history mode persists data to Postgres for long-term analysis
  • Access history dashboard at /adsb/history

Vessels (Dashboard)

  • Opens the AIS Dashboard for maritime vessel tracking
  • Displays vessel name, MMSI, callsign, destination, and navigation data
  • VHF DSC Channel 70: Monitors maritime distress frequency (156.525 MHz)
  • Decodes DSC messages: Distress, Urgency, Safety, and Routine calls
  • MMSI country identification via Maritime Identification Digits (MID)
  • Visual alerts for DISTRESS and URGENCY messages with map markers

APRS Mode

  • Decodes APRS (Automatic Packet Reporting System) on VHF
  • Tracks amateur radio operators transmitting position data
  • Regional frequencies: 144.390 MHz (N. America), 144.800 MHz (Europe)
  • Uses Direwolf or multimon-ng for packet decoding
  • Interactive map shows station positions in real-time

Listening Post Mode

  • Wideband SDR scanner with spectrum visualization
  • Tune to any frequency supported by your SDR hardware
  • AM/FM/USB/LSB demodulation modes
  • Bookmark frequencies for quick recall
  • Quick tune presets for emergency and marine channels

Spy Stations

  • Database of number stations and diplomatic HF networks
  • Browse stations from priyom.org with frequencies and schedules
  • Filter by type (number/diplomatic), country, and mode
  • Famous stations: UVB-76 "The Buzzer", Cuban HM01, Israeli E17z
  • Click "Tune" to listen via Listening Post mode

Meshtastic Mode

  • Integrates with Meshtastic LoRa mesh network devices
  • Connect Heltec, T-Beam, RAK, or other compatible devices via USB
  • Real-time message streaming with RSSI and SNR metrics
  • Configure channels with encryption keys
  • View connected nodes and message history
  • Requires: Meshtastic device + pip install meshtastic

WebSDR Mode

  • Access remote WebSDR receivers around the world
  • Listen to shortwave, amateur, and broadcast stations without local SDR hardware
  • Browse available public WebSDR servers by location and frequency range
  • Useful for monitoring HF bands from different geographic locations

SubGHz Mode

  • Analyzes sub-GHz radio signals (common ISM bands: 315, 433, 868, 915 MHz)
  • Captures and decodes wireless remote controls, key fobs, and IoT devices
  • Protocol identification and signal analysis
  • Useful for RF security research and device testing

Satellite Mode

  • Track satellites using TLE (Two-Line Element) data
  • Add satellites manually or fetch from Celestrak by category
  • Categories: Amateur, Weather, ISS, Starlink, GPS, and more
  • View next pass predictions with elevation and duration

ISS SSTV Mode

  • Decodes Slow Scan Television (SSTV) images from the International Space Station
  • Automated ISS pass tracking with Doppler correction on 145.800 MHz
  • Images decoded in real-time using slowrx
  • Gallery view with timestamped decoded images

Weather Sat Mode

  • Receives weather satellite imagery from NOAA APT and Meteor M2 LRPT
  • Uses SatDump for satellite signal processing and image decoding
  • Automated pass prediction and scheduling
  • Decoded images displayed in gallery with pass metadata

HF SSTV Mode

  • Decodes Slow Scan Television images from HF amateur radio bands
  • Common SSTV frequencies: 14.230 MHz (20m), 7.171 MHz (40m), 3.730 MHz (80m)
  • Supports multiple SSTV modes (Martin, Scottie, Robot, etc.)
  • Real-time image decoding with gallery view

GPS Mode

  • GNSS signal analysis and satellite constellation tracking
  • Displays GPS, GLONASS, Galileo, and BeiDou satellite positions
  • Signal strength visualization and fix quality metrics
  • Useful for evaluating GNSS reception and interference

Space Weather Mode

  • Real-time solar and geomagnetic data from NOAA SWPC, NASA SDO, and HamQSL
  • Solar indices (SFI, Kp, A-index, sunspot number) and NOAA G/S/R scales
  • HF band conditions, X-ray flux, solar wind speed, and flare probability
  • Solar imagery (SDO 193/304/Magnetogram), D-RAP absorption maps, aurora forecast
  • No SDR hardware required — all data from public APIs

WiFi Mode

  • Requires a WiFi adapter capable of monitor mode
  • Click "Enable Monitor" to put adapter in monitor mode
  • Scans all channels or lock to a specific channel
  • Detects drones by SSID patterns and manufacturer OUI
  • Rogue AP detection flags same SSID on multiple BSSIDs
  • Click network rows to target for deauth or handshake capture

Bluetooth Mode

  • Scans for classic Bluetooth and BLE devices
  • Shows device names, addresses, and signal strength
  • Manufacturer lookup from MAC address OUI
  • Radar visualization shows device proximity

BT Locate Mode

  • Locate and track specific Bluetooth devices by signal strength
  • Directional signal strength indicator for physical device finding
  • Detects known tracker signatures (AirTag, Tile, SmartTag)
  • Useful for finding lost devices or detecting unwanted trackers

TSCM Mode

  • Technical Surveillance Countermeasures sweep
  • Scans for unknown RF transmitters, WiFi devices, Bluetooth
  • Baseline comparison to detect new/anomalous devices
  • Threat classification: Critical, High, Medium, Low
  • Useful for security audits and bug sweeps
  • Note: This feature is in early development

Network Monitor

  • Aggregates data from multiple remote INTERCEPT agents
  • View all WiFi, Bluetooth, ADS-B, AIS data in one unified view
  • Real-time streaming via Server-Sent Events (SSE)
  • Location estimation using multi-agent trilateration
  • Manage agents at /controller/manage

Monitor Mode

  • Enable Monitor: Puts WiFi adapter in monitor mode for passive scanning
  • Kill Processes: Optional - stops NetworkManager/wpa_supplicant (may drop other connections)
  • Some adapters rename when entering monitor mode (e.g., wlan0 → wlan0mon)

Handshake Capture

  • Click "Capture" on a network to start targeted handshake capture
  • Status panel shows capture progress and file location
  • Use deauth to force clients to reconnect (only on authorized networks!)
  • Handshake files saved to /tmp/intercept_handshake_*.cap

Drone Detection

  • Drones detected by SSID patterns (DJI, Parrot, Autel, etc.)
  • Also detected by manufacturer OUI in MAC address
  • Distance estimated from signal strength (approximate)
  • Click drone count in stats bar to see all detected drones

Rogue AP Detection

  • Flags networks where same SSID appears on multiple BSSIDs
  • Could indicate evil twin attack or legitimate multi-AP setup
  • Click rogue count to see which SSIDs are flagged

Proximity Alerts

  • Add MAC addresses to watch list for alerts when detected
  • Watch list persists in browser localStorage
  • Useful for tracking specific devices

Client Probe Analysis

  • Shows what networks client devices are looking for
  • Orange highlights indicate sensitive/private network names
  • Reveals user location history (home, work, hotels, airports)
  • Useful for security awareness and pen test reports

General Tips

  • Collapsible sections: Click any section header (∇) to collapse/expand
  • Sound alerts: Toggle sound on/off in settings for each mode
  • Export data: Use export buttons to save captured data as JSON
  • Device Intelligence: Tracks device patterns over time
  • Theme toggle: Click the theme button in header to switch dark/light mode
  • Settings: Click the gear icon in the header to access settings
  • Offline mode: Enable in Settings to use local assets without internet

Keyboard Shortcuts

  • F1 - Open this help page
  • ? - Open help (when not typing in a field)
  • Escape - Close help and modal dialogs

Requirements

  • Pager: RTL-SDR, rtl_fm, multimon-ng
  • 433MHz Sensors: RTL-SDR, rtl_433
  • Utility Meters: RTL-SDR, rtl_tcp, rtlamr
  • Aircraft (ADS-B): RTL-SDR, dump1090 or rtl_adsb
  • Aircraft (ACARS): Second RTL-SDR, acarsdec
  • Vessels (AIS): RTL-SDR, AIS-catcher
  • APRS: RTL-SDR, direwolf or multimon-ng
  • Listening Post: RTL-SDR or SoapySDR-compatible hardware
  • Spy Stations: Internet connection (database lookup)
  • Meshtastic: Meshtastic LoRa device, pip install meshtastic
  • WebSDR: Internet connection (remote receivers)
  • SubGHz: RTL-SDR or compatible SDR hardware
  • Satellite: Internet for Celestrak (optional), skyfield
  • ISS SSTV: RTL-SDR, slowrx
  • Weather Sat: RTL-SDR, SatDump
  • HF SSTV: RTL-SDR or SoapySDR-compatible hardware, slowrx
  • GPS: RTL-SDR or GPS-capable SDR
  • Space Weather: Internet connection (public APIs)
  • WiFi: Monitor-mode adapter, aircrack-ng suite
  • Bluetooth: Bluetooth adapter, bluez (hcitool/bluetoothctl)
  • BT Locate: Bluetooth adapter, bluez
  • TSCM: WiFi adapter, Bluetooth adapter, RTL-SDR (all optional)
  • Run as root/sudo for full hardware access

Legal Notice

  • Only use on networks and devices you own or have authorization to test
  • Passive monitoring may be legal; active attacks require authorization
  • Check local laws regarding radio frequency monitoring