Hello friends,
Despite the fact that almost everyone waiting CESSB for QMX, I want to ask about QCX mini.
Past weekend I work portable with QCX mini and QMX and noticed how nice sound side-tone in QMX and how claps during keying in QCX mini. My QCX mini has the latest board, probably V4 with required adjustments from QRP-Labs (C22 is 1uF).
This problem is discussed recently but I was not able to find working solution except already implemented by REV4 board.
I know about detailed description in the 4.8 Audio amplifier section. I already replaced C22 to new one from Murata with the same nominal 1uF but this did not help.
What you could advice to solve this clapping during keying?
I can use smaller 0.1uF but I don't want to louse sensitivity on 20m band.
If you need more info, I can record a video how this sounds.
Whay I need QCX when have a QMX. Ok, I like how sounds direct conversion RX =)
Yury SP2RM