[NLRS] FT857

[S. Earl Jarosh]

I came across this question on another forum.  Since so many here have
these, does someone have the answer?
 
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I own a 2003 FT857 that only outputs around 2 watts on UHF any mode.  My
friend has a radio with a similar issue from the same era and browsing the
internet I see we are not alone.

The radios all operate fine on VHF 2 meter with 50 Watts.  This band uses
the very same power transistor as UHF, so this is not the issue.  

Anybody knows what component to replace to get this fixed ?  The unit draws
around 4,5 A so probably the final stage is running but power gets stuck
somewhere in an affected SMD part.


Pedro ON7WP


(please no stupid replies like "have you checked your antenna?"  I am
testing on a 1:1 dummy load with calibrated power meters)
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S. Earl Jarosh, N0HZ
SEJ Industries, Computer and Business Consulting
1432 Quebec Ave. N.
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earl at jarosh.org
 
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