[Elecraft] K3--Too much ALC creates energy on opposite sideband?
Jim Brown
jim at audiosystemsgroup.com
Wed Aug 28 17:18:13 EDT 2019
On 8/28/2019 1:46 PM, Michael Walker wrote:
> I am not a big fan of compression and in today's world there really is no
> requirement to have it on. Ask anyone who has been DXPedition end of a
> DXPedition and they will tell you to turn it off as it is actually harder
> to understand you.
This is NOT true if compression is well adjusted -- 10 dB of well
adjusted compression increases talk power by 10 dB, and setting TXEQ to
remove speech content below 400 Hz helps by another 3 dB. It is the
abuse of compression that reduces intelligibility. Compression has been
universally used in all broadcasting modes for at least 60 years, and
for at least 40 years, for gain reductions of 30 dB or more! The joke
among FM broadcast engineers in the '70s was "If the meter in the
modulation monitor moves, the program director will say we're not loud
enough!"
73, Jim K9YC
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