CHAPTER 12
A Flexible Sequencer
Have you ever had a transmit-receive relay fail and witnessed the ensuing carnage that happens when you pump 100 W or more of RF into the front end of your multithousand-dollar receiver? Not a pretty sight. Dennis has experienced something similar to this with predictable results. In his case, it was a relay on the output of a very expensive 2 meter low noise amplifier (LNA) that was in the wrong position when the transmitter keyed up. You guessed it. The result was an ex-LNA.
If you spend much time around VHF and UHF “weak signal” work, referring to operating on CW or sideband, you eventually want to improve the performance of your station. The means to improving performance are simple: more power, more antenna ...
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