Gentlemen:

Something very strange just started to happen to my repeater
system. First off, I have a UHF Mastr II on UHF and another
Mastr II on 6 meters ties together using an RC-100 controller.

The 6 meter machine is connected as the main repeater and
the UHF is connected as the remote base (full duplex).

All of a sudden, I lost audio from the UHF transmitter ONLY
when coming in on UHF. 6 meters to UHF works just fine?

Basically, this is what's happening (audio):

UHF to 6 meters ------OK
UHF to UHF------------Nada
6 meters to UHF-------OK
6 meters to 6 meters--OK

The reason this has me so confused, is that the audio
to both transmitters is driven off the same point in
the controller, except for a 4.7K resistor in series
for the UHF transmitter.

Sounds like a UHF transmitter problem Eh? Can't be
because the audio from 6 meters comes through just
fine with no distortion. I was thinking about a 
desence problem on the UHF receiver, but the audio 
from UHF passes through the 6 meter machine just fine.

The site is on a very large hill, with a 20 degree sloped
laneway, covered in snow/ice. I think a snowmobile
would have a hard time getting up at this time of
the year. Walking up is the only option, and with a 
windchill of -25F, I only want to do this once.

If anyone has any clue what to look for once I do make it
up there, let me know. I'll take up an audio signal tracer
with me to see where it stops, but hopefully someone
has run into this before.


Tedd Doda, VE3TJD

Lazer Audio and Electronics
Baden, Ontario, Canada
Way to go Matt! (NASCAR #17)






 

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