I managed to get the QMX+ working with the FreeDATA software yesterday using the 1_01_003 firmware in SSB mode. ?Setup is a Raspberry Pi 5 running the latest Debian 12 using a USB connection to the QMX+ for CAT and audio.
I am in Maine, and managed to exchange several messages with a station in Ohio last night with 2.6 watts on 20m.
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Great little radio!
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-Dj
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Dj Merrill