QRP Labs QMX firmware `v1_00_013`

QRP Labs · Released Dec 12, 2023 · First seen Sep 7, 2026

v1_00_013 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

Bug fix: CW-R didn't work.
Bug fix: CAT MD command set didn't work (change mode command).
CW-R and Sideband selection are now part of the saved radio state (not just menu parameters).
SWR protection and SWR on transmit display are disabled if power is below 0.5W.
Bug fix: Make sure SWR protection is disabled when in Practice mode.
Bug fix: Diagnostics screen shouldn't display SWR when in Practice mode.
Add "CW Offset" parameter to the Keyer menu; works between 600-800 Hz only.
Bug fix: Sidetone frequency is now implemented (100-999Hz).
"ENABLE"/"DISABLE" changed to "ENABLED"/"DISABLED" which is less confusing.
Bug fix: CAT command MD7 didn't properly set the mode to CW-R (reported mode 6).
Bug fix: Solve keyer glitches.
Bug fix: Hyperactive SWR protection: now only allow if not already in some kind of practice mode.
Bug fix: SWR protection mistakenly set on exiting message sending if in key-down.

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