GridTracker version 1.21.0327 has been released

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 / uploading
  • , HamQTH, CALLOOK and Callsign lookups
  • Band and Mode filtering
  • Complete DXCC, Country, Callsign Prefix recognition
  • Band activity from PSK-Reporter
  • Maidenhead 4 and 6 wide views
  • CQ and ITU Zone parsing from QSOs
  • Worked All Continent and Worked All States parsing
  • Contest Map Overlays
  • 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
  • Log4OM, N1MM+ local logger support
  • Active development with you in mind, tell us what you’d like to see!

What’s new in version 1.21.0327

This is a hotfix release after reports of a couple of critical bugs in v1.21.0322 that was released earlier in the week.

This release contains the bug-fixes and feature enhancements from v1.21.0322 along with fixing the bugs that prevented users from importing adif log files and a bug that caused the Call Roster to show incoming traffic that didn’t match the “wanted” filters.

You can find v1.21.0327 in the GridTracker downloads page, with packages available for Windows, MacOSX (Intel), Linux and Raspberry Pi (and Odroid).

MacLoggerDX users note:

GridTracker offers a UDP relay facility, and you can use this to have GridTracker receive and inspect UDP packets and display its map, and then send the packets on to MacLoggerDX for further processing.

In GridTracker, use the Settings panel to set the UDP listening port to 2238. Turn on UDP forwarding, and set the destination port to 2237. Leave the IP address at

Then, in WSJT-X Preferences, in the Reporting tab, set the UDP server port number to 2238. Leave the UDP Server IP address at

That’s it. WSJT-X will send received data to UDP port 2238, where it will be inspected by GridTracker and then forwarded to port 2237, where it will be picked up as usual by MacLoggerDX.

Download a copy of GridTracker now.