I have the CONFIG: AGC SLP parameter set to 15 also and I think it is not
aggressive enough - that is, the volume difference is too large
between weak and strong signals.
I just measured it. From a signal at the AGC threshold (-104 dBm if AGC
THR is set to 005) to a signal 100 dB stronger, the audio output varies
less than 0.1 dB. It's hard to get much flatter!
I think the sumptom you are experiencing is not related to flatness, but
to threshold.
If you set AGC THR from 005 (default) to 002 (the smallest allowed value
at present) the threshold will drop from about -104 dBm (1.4 uV or so)
to about -112 dBm (0.5 uV or so). This will take about 8 dBV (or 16 dB
in terms of power your ears hear) off the maximum level you'll hear at
any particular AF GAIN setting as compared to the noise floor of the radio.
73,
Lyle KK7P
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