QRP Labs QMX firmware `v1_02_006`

QRP Labs · Released Oct 31, 2025 · First seen Sep 7, 2026

v1_02_006 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 IF command incorrectly shows VFO B when in TX and in VFO A mode
Bug fix: When changing band up/down the RF Gain doesn't get changed properly
Bug fix: On the LCD, SWR tool now operates correctly at the displayed VFO frequency
Bug fix: TX indicator always under A, even in VFO B and Split modes (means not displayed at all in B)
Change "Audio gain (dB)" row name in Band Config to "RF gain (dB)", a more accurate description
New CAT RG command now gets/sets RF Gain (used to be called Audio gain, and command AG)
CAT AG command now gets/sets AF Gain, which is Volume, in steps of 0.25 dB e.g. AG083; is 20.75 dB.
System wide update to config handling of boolean parameters to prevent accidental enabling
New CAT ML and MM commands provide complete CAT accessible configuration menu interface
System config submenu "Experimental" for polar modulation SSB experiments (you can't touch this)
Bug fix: CAT Q2 command Set did not work as described (sets VFO A, same as FA command)

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

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