Question about Uniden Radio Communications
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Posted on Jan 02, 2017
SOURCE: No Modulation!!
Most modulation problem could be traced to:
1. mic or the cable and/or the mic connector;
2. AMC (amplitude modulation control) - it's a single transistor that regulates modulation and occasionally has been known to clamped on the mic audio;
3. the AM/SSB switch - spraying with contact cleaner is a temporary remedy; and/or
4. audio amp - however if your receive audio is good, then this does not apply.
Hope this be of initial help/idea. Without a model number, I can't be more specific as to component(s) or PCB location but pls post back for any developments (or lack thereof) or should you need additional information.
Good luck and kindest regards.
Posted on Feb 09, 2008
SOURCE: I have a Uniden Washington SSB that when you first turn it on a key down, Watt output is about 8, the longer you hold it ppt or alternate, the wattage drops to zero, any hints for somebody that does k
Iwould take it to a radio tech and let him adjust the power so that it does not fluctuate .Shouldn't take maybe ten minutes.
Posted on Sep 30, 2012
Without seeing it I would guess (and it's only a guess) that maybe you have a broken microphone wire. If it's a factory mic the most common place for it to break is right up from the mic plug. Factory cords are not flexible, their really stiff. We could really use some more information. Mike
Posted on Oct 15, 2015
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