I recently purchased this microphone kit from Pacific Antennas for $15.? The kit was easy to build and seems to work ok with the QMX+ usng a MIC Gain set at 50.? Anyway I made my first SSB contact today on 10m so I'm satisfied.? I've enjoyed reading about what others are trying and look forward experimenting some more.
That is the same mic, (I have 4 of them), I use on all of my Bitxs and my QMX+. I always get good audio reports. I know they are not the most attractive looking mics around but they do work.
Joel Caulkins/N6ALT