QRP Labs QMX firmware `v1_04_004`

QRP Labs · Released Jul 23, 2026 · First seen Sep 7, 2026

v1_04_004 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

Added option in Power menu to set full scale deflection to 12W - useful for 4:4 PA mod
New CAT command GP returns GPS position and date and time
New CAT command SR returns SWR protection status and can reset it
SMPS Bias circuit pre-warm up at radio power up
CW menu: added choice of CW shaping envelope, and rise/fall times
Bug fix: Removing leading edge spike on CW key-down
Bug fix: Semi QSK CW keyed 2nd and subsequent dits even when TX disabled in Band Config
Bug fix: Certain menu items that should be editable as 1 digit, allowed two

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