On 7/2/2018 5:23 PM, Wayne Burdick wrote:
I generally leave TX CMP at 20, but even at 30, the audio is very clean. The
extra punch can help with QRP and/or small antennas.
Hi Wayne,
You're looking at the wrong thing to set compression, because the
numeric value doesn't take the mic sensitivity into account. Rather, we
should be looking at the indicated gain reduction on audio peaks, and 10
dB is a good objective.
As an audio pro, my advice is 1) set TXEQ so that you're not wasting
power transmitting low frequency speech sounds (max cut for the first
three bands, 6 dB cut for the fourth) 2) Set CMP for the indicated
value of gain reduction 3) Get some signal reports from a good
listener. This combination results in about 13 dB of increased talk
power (3 dB for the EQ, 10 for CMP).
73, Jim K9YC
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