QRP Labs QMX firmware v1_00_021

QRP Labs · Released Jul 25, 2024 · First seen Sep 7, 2026

Source: qrp-labs.com

v1_00_021 is not the latest firmware for the QRP Labs QMX: the current version is v1_04_015 (September 24, 2026). Go to v1_04_015

What's in this update

  1. Japan limits setting renamed "Band Limits": "ITU Region 2" (default), Japan, or None
  2. CAT: Implement KS command to Get/Set CW keyer speed
  3. CAT: Implement KY command to send text via CW transmission
  4. CAT: Implemented Set command for RT: RT1; to enable R​IT mode, RT0; to disable it
  5. CAT: Implemented RC (RIT Clear) command RT; to disable RIT mode
  6. Click "Tune" rotary encoder knob in RIT mode to move RIT cursor one character right
  7. Test ADC I/Q screen now has band +/- so can run for all bands
  8. Force display of battery icon, if TX is disabled due to supply voltage being out of range
  9. Diagnostics screen now shows the REASON for not transmitting, if it produces no RF
  10. I2C bus speed increased from 400kHz to 1MHz
  11. Bug fix: Implemented semi-QSK properly (8 dit lengths delay like in QCX)
  12. Bug fix: CAT: RD0; and RDU; Set commands made RIT zero but this wasn't displayed
  13. Bug fix: CAT: Now calling RD or RU CAT Set commands causes the UI to enter RIT mode
  14. Bug fix: CAT: Proper behaviour when CAT RIT commands are called and LCD is in menu mode
  15. Bug fix: If RIT is non zero when leaving menu, RIT mode wasn't re-entered
  16. Bug fix: Incorrect characters on LCD in SWR tool, when changing band 160 -> 80m etc
  17. Bug fix: Preset number was missing on t​he display, when selecting a preset frequency
  18. Bug fix: Settings reload only done on exiting Configuration menu (some menus accessed elsewhere)
  19. Bug fix: Power supply range TX disabling didn't work properly
  20. Bug fix: Battery icon froze when CW decoder enabled
  21. Bug fix: RX PTT was not activated after Band Config edit until keyed
  22. Bug fix: Test ADC I/Q screen was corrupt on first opening, needed R to refresh

updatemystuff.com never hosts firmware files — always download from the official source.

Get it from QRP Labs

Watch the QMX for updates

Create a free account and get an email the moment QRP Labs publishes new firmware.

Create account & watch

Other versions for this product

See the full firmware history for the QMX