QRP Labs QMX firmware `v1_00_022`

QRP Labs · Released Jul 31, 2024 · First seen Sep 7, 2026

v1_00_022 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: CAT KY when keyer speed is zero sends very fast; now just returns ? and does nothing
Bug fix: CAT KY when transmit disabled for any reason incl practice mode, got stuck
Bug fix: Playing a message memory when speed is zero sent very fast, now ignores
Semi QSK settings: OFF, Auto, Contest, Custom dits, Custom decidits, Custom ms, new Custom val param
Bug fix: LPF and SWR sweep didn't work for QMX+ 160m and 11m when band limits are enabled
New sys config setting "RX outside band" (default OFF); when off, restricts rx to in-band
CW Offset range now 400-999
Added new filter sub-menu, with CW filter selection and "Auto-offset/tone"; 300/500 Hz filters at various centers
Bug fix: now lock buttons/knobs to prevent corruption while running terminal apps RF Sweep etc
Bug fix: Prevent LCD frequency changes while terminal apps like RF Sweep are active

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