Stray Signals

GridTracker – WSJT-X or JTDX decodes

GridTracker is a companion program for WSJT-X. It listens to WSJT-X or JTDX decodes and displays them on a map for Linux, Mac, and Windows .

Display on a large second monitor in your amateur radio club, hamfest or as a demonstration in a classroom.  Everyone gets excited when they can see what you’re doing!


  • Realtime Traffic Decoding to world map.
  • Audio / Visual / Text-to-Speech Alerts on Callsign, DXCC, CQ Designator, Grid and more.
  • ADIF Log parsing
  • QSO log reporting
  • Complete DXCC, Country, Callsign Prefix recognition
  • Band activity from PSK-Reporter
  • Maidenhead 4 and 6 wide views
  • 100% offline mode available for field-day use.
  • UDP Multicast message support
  • UDP message forwarding
  • State / Province / Locality information
  • Decode history charting for propagation and radio performance  analysis
  • Active development with you in mind, tell us what you’d like to see!

Update: April 6th, 2018

  • Reversed Right-Click and Shift-Right-Click on grid behavior (Thanks ZL1RPL)
  • Renamed Countries list to DXCCs
  • Fixed station-flags from re-appearing after disabled
  • Fixed station-flag info sometimes following the mouse pointer
  • Fixed path-width not saving across sessions
  • Fixed issue while ignoring messages and switching between offline/online would allow messages again
  • Added Country Flag compiled for DXCCs by N2VFL
  • Added UTC / Local time toggle (press the timestamp on the menu to toggle)
  • Added Multicast UDP Support! ( –
  • Added ability to turn off legend in map settings
  • Added France and German states to DXCC lookups
  • Added ability to hide menu (press menu header)
  • Added loading of Callsigns from WSJT-X logfile for ‘worked’ info
  • Moved Night-shadow toggle back to menu
  • Moved all settings to tabbed panel
  • Moved all informative lookups except “Current Conditions” to tabbed panel
  • TODO: Add ‘CQ’ Zones, Stats view, New Alert types, callsign lookups for members


GridTracker Quickstart v.1.18.0406 3.54 MB



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