AGC-T Setting for Digital Modes?

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  • Updated 4 years ago
  • (Edited)
I operate mostly on the digital modes JT65 and JT9. I have had pretty good luck setting AGC off and AGC-T at 40 on my 6700. I have always operated with NB, ANF, and NR off.

I am wondering if anyone has found a better way to optimize S/N ratio by adjusting AGC-T? I have tried listening to a signal and adjusting it downward until an audible signal seems to "pop" out of the noise, but wonder if this setting is optimum for those signals that are so weak that they cannot be heard.

I also wonder if AGC is off, why is there even an AGC threshold adjustment that affects the noise? Is AGC-T misnamed?


Ed, K0KC
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Ed, K0KC

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Posted 4 years ago

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Ernest - W4EG

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Like you I am mainly on JT65/9 with the same set up as you; AGC-T 40  I find this to be the optimum setup for me in performance.

I've try with it off and I have found it to be inefficient; specially when I operate on 160/80/40 etc.  The static noise overwhelms it.