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JIMMIE wrote:
Being aware that this was the nature of my solidstate transceiver I attempted to use a tuner with one to improve my match to my antenna system. While I didnt damage my transmitter I did notice that the best settings of the tuner for TX and RX did not coincide. I was wondering if anyone else has observed this . Not surprising at all. Consider the whole black art of adjusting the input match for lowest noise figure, which may or may not coincide with the largest output signal for a given input. All those theorems about matching always have an asterisk about the assumption that they're reciprocal linear devices with constant impedances, etc. Start putting nonideal active devices in the mix, and life gets interesting. |
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