I just aquired a second msf5000 to make a 2 meter repeater our of and it has a
part not present in the first station. I suspect it could be a rx preamp due
to the fact it has coax input and output and it is wired in series between the
duplexer rx port and the receiver rf input.
It appears to be an aluminum block rack mounted just below the power supply and
is about 1.5" thick and about 8 or 9 inches wide. I did not see any electrical
connections so if it is a preamp it must get power from the coax into the
receiver. I am not familiar with this device. My other station did not have
this part. Perhapps it is sopme kind of filter? Both stations are the
digital capable models which I program with the rib and old laptop. Any ideas
please! Pictures on request if needed.
