Re: RF output when just keying the mike


Hi Maurice

Is your radio receiving ok and have good sensitivity?

Have you tried it on several frequencies i.e. 3 .5 mhz, 7.10mhz and 14.1 mhz? for both RX and TX?


Keith Perry




From: [] On Behalf Of Maurice Bersan via Groups.Io
Sent: Wednesday, November 6, 2019 3:27 PM
Subject: [BITX20] RF output when just keying the mike


Hi everyone looks like I have problem.
I have RF output of about 5w when I key the mike with no modulation input. When I do speak into the mike the modulation is very distorted as heard on a local SDR.
CW seems fine with a nice clean signal.
The problem happened suddenly while trying to tune up with a manual antenna tuner.
I replaced the two irf510 fets but no change. Anyone have any ideas where I can start looking?
Thanks for any help

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