[TMC] ATS-2 problem

H.L. hl at sfsu.edu
Tue Sep 8 15:17:12 EDT 2009


Hello All:

Many thanks for the assistance and advice regarding my 
non-functioning TMC antenna coupler.  I was half-joking in asking 
whether the four "missing" components might be hidden inside the 
40-Watt resistor.  Actually--they are there! But, before beginning 
the difficult task of accessing these components, I tried an old 
vintage radio repair trick--I exercised the four SWR meter adjustment 
potentiometers, R102, R103, R104, and R106 on the ATS-2 monitor 
chassis.  That solved the problem!!  They probably had not been 
turned or adjusted for ten years or more and their contact points had 
just enough corrosion to cause the symptom.

TMC forever,
Hal KK6HY
email: kk6hy at arrl.net


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