On 5/7/2020 10:15 AM, Jim Thomson wrote:
Hundreds of tests have been run, with ssb signals right at the noise
level,
or slightly above the noise level. And in every case, increasing the
top end
improves speech intelligibility by a HUGE amount.
Of course. And in speech reinforcement systems, we carry response up to
at least 10 kHz. BUT my advice is for weak signal communications
circuits for DXing and contesting. Band congestion is extreme during
both of these conditions, so the use of ESSB is out of the question for
these times.
> Microphone is a RE-27.
That's a fine microphone. I own several, also RE20s, which I use for
recording music. They are my first choice for trombone, and for tenor
and baritone saxophones. It is massive overkill for ham radio, and it's
a relatively flat mic, so it lacks the built-in boost around 3 kHz that
good communications mics provide.
73, Jim K9YC
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