Dear Europa forum members,
This weekend I installed a used (but nice) Becker 3201 radio in my plane.
The reception of the radio is crystal clear. The transmission is reported as
loud
and clear. But .... it does have a small issue when transmitting. When you
press the PTT you can hear the carrier right away (we have an ASOS station that
records transmission for radio checks) but the modulation (the volume of your
voice) increases from nothing to full clear transmission over a period of two
or three seconds from PTT press. If you release the PTT and press it again
within
a few seconds the modulation is OK right away, but if you wait say 30 seconds
the modulation ramps up in a matter of two or so seconds. But again, once
you wait the required two or three seconds, the transmission is loud and clear.
My mic and phone jacks are wired through a PM3000 intercom. I am in the process
of eliminating the intercom as a source of the issue by making a jumper
connector
for the intercom to bypass it.
Now, I know that maybe this is the wrong forum for asking a radio issue question
but maybe someone out there has similar issues with a Becker installation in
the past. I know the Becker 3201 has a jumper for dynamic or "Standard" (I
assume
standard is electrec) microphones. Don't know yet what it is set up to. I
read the Becker has a compressor mic preamp and it almost sounds as if the
compressor
is ramping up the gain because its not getting enough signal from the
microphone so it could be that the mic type jumper is the way to go (I will try
that later today).
Anyway, just wondering if any of our radio savvy forum members has an idea I
would
really like to save this otherwise fine radio.
Best Regards,
Chris
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