Project Status – Hamclock Client

The Hamclock client code repository can be found here: https://github.com/openhamclock/hamclock/

The latest manual in PDF format can be accessed here: https://github.com/openhamclock/hamclock/releases/download/v4.28.0/HamClockUserGuide.pdf

Below are all the release notes from v4.23 onwards. Earlier releases from the original author can be seen on this page.

v4.28 – 2026-07-27

  • add Sat Alerts via Hams.at
  • add plane icon to launch to ADSB
  • add wave icon to launch to Windy.com
  • add Planets Display in Setup
  • add POTA support for ONTA
  • add Meshtastic watch support
  • improve display refresh performance
  • improve visibility of icons

v4.27 – 2026-07-17

  • improving the lightning strike icon for the lowest resolution display
  • add cyclones to maps
  • fixed mbox icon disappears sometimes
  • fixed tropics for map zoom
  • update tropics more frequently
  • voacap timeout increased to 15s
  • fix init/saved pos’n on some X windows
  • fix some compiler warning and do some housekeeping/cleanup
  • new pane for nets
  • new pane for HF Bands
  • new pane for VHF Conditions
  • new pane for launches
  • new flex panel for nets
  • new flex panel for launches
  • new satellite freq/modes display
  • new satellite pass progression display
  • new satellite Sky View display
  • new satellite information link to OrbTrack
  • new satellite information link to SatNog
  • new satellite information status link to AMSAT website

v4.26 – 2026-06-11

  • mobile dashboard on 8080:/dashboard.html
  • update dxcluster connection retry
  • center clicked on zoom map
  • lightning uses config units
  • fix DE format’s OK button broken
  • fix web-3200×1920 in alpine docker
  • support sys admin messages
  • ensure sat tracks on top
  • support 4-char grid squares
  • prelim support for tropo maps

v4.25 – 2026-05-21

  • improve lightning icons
  • fix UA missing in lightning
  • tropical cyclone feature
  • support save configuration
  • allow unselect all
  • better missing satellite

v4.24 – 2026-05-13

  • fix maidenhead conversions in REST api
  • show lightning strikes on maps
  • directional antennas in voacap
  • highlight “now” in VOACAP DE-DX
  • compile opts to set dx cluster
  • exponential backoff for voacap maps

v4.23 – 2026-04-19

  • fix 1-sat crash in Show planner
  • better diag file posting
  • show backend host/IP in status
  • prevent OTA crash on long pre/suffix
  • fix gpio pin for alarm
  • add -T for HTTP timeout
  • add T= env var for HTTP timeout
  • add -S for alt software server
  • add _S= env var for software server
  • add _B= env var for backend server