Somehow this topic has split into two -- the headphones and the mic. :)
That's a good thing, because both matter. My comments on noise rejection
have, so far, addressed only the mic.
As to the headphones, I find them quite comfortable, and fairly good at
rejecting other sounds, roughly equivalent to Sony MDR7506. My shack is
pretty quiet except when the XYL comes through talking or banging the
screen door. The talk QRMs me, the screen door triggers the VOX. It's
quite loud. :)
The only operation I do in a multi is for our CQP and 7QP expeditions,
and we've found the CM500 "good enough." I would certainly take the
advice of guys with big multi operations like W3LPL. That said, after I
visited his shack several years ago, I noted to Frank that it's hard
surfaces made it an echo chamber that amplifies the noise, especially
speech, and that putting sound absorbing panels to the walls would help
a lot. This has long been standard practice in broadcast announce booths
and production studios intended primarily for speech, and can make a
HUGE difference as compared to hard surfaces.
The human voice is directional to the front and slightly above the
mouth, so the absorption on wall surface directly in front of the
operator is especially useful. Likewise for surfaces around noisy fans.
73, Jim K9YC
On 11/21/2018 11:43 AM, Larry wrote:
Using headphones that block external sound becomes a trade off.
Effective noise cancelling headphones tend to be heavy and bulky. That's
fine for the casual user but become uncomfortable after a long period of
time. Contest users beware.
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