QRP Labs QMX firmware v1_04_002

QRP Labs · Released Jun 18, 2026 · First seen Sep 7, 2026

Source: qrp-labs.com

v1_04_002 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

Beta firmware version NOTE: Installing​ this firmware executes a Factory Reset: be sure to select your correct firmware version after the reset, at the prompt, by rotating Tune knob, then pressing the menu button or Tune knob button.

  1. Bug fix: SWR Style could be incorrect if EEPROM contents not set up
  2. Bug fix: Virtual U3S not stoppable by pressing any button, had to cycle power
  3. Bug fix: Virtu​al U3S did not transmit properly
  4. Bug fix: Virtual U3S missing PPS "heartbeat"
  5. Bug fix: Virtual U3S Maidenhead grid locator display error
  6. Bug fix: Repeated CW message sending omitted first part of message

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Other versions for this product

See the full firmware history for the QMX