Folks I had something odd here. I have three Quantars in service, all 100W, one UHF in 441 band, two 927 band. I had a PA fail on the 927 in Cedar Hill so for tight now I pulled the PA from the local Quantar here at the house and put it in Cedar Hill and that's all fine, 100W out. The 441 Quantar is here in the shack and easy to work on (its three feet away). So I popped out the UHF exciter and PA, installed a 900 exciter and one of my spare 900 PA's, reprogrammed the codeplug for 900 transmit, connected the 10 mhz out from my service monitor for external ref. All three PA's only would make 20 watts and all showed PA Fail and PA low. And to answer the first question, the PA out was connected directly to the Bird/load.?
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Is there a difference between a UHF and 900 (or 800) chassis? I'm puzzled because when I popped one of these PAs into the 927 Quantar in the garage all was fine, no faults. Also in the uhf chassis they all showed just about zero reflected power.?
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GeorgeC W2DB
