[Elecraft] mic

Bill Frantz frantz at pwpconsult.com
Sun Jun 11 19:22:17 EDT 2017


As Jim says, "For most cases...", But.

When I help provide communication for the Los Gatos Children's 
Holliday Parade, it is not "most cases". When operating next to 
the parade route, there is frequently a high school marching 
band going full blast just 20 feet away. The problem isn't in 
the RF link, which is 2M FM. It's in the AF link with QRM for 
both transmit and receive. The David Clark headset might be just 
the right thing for this kind of environment.

When foot mobile along the parade route, I use Sennenheiser 
noise canceling headphones plugged into a Yaesu MH-34 speaker 
mike which seems to be "good enough". The CM-500 headset works 
well for the net control station, which is a bit further away 
from the parade route.

73 Bill AE6JV

On 6/11/17 at 1:44 PM, jim at audiosystemsgroup.com (Jim Brown) wrote:

>True "noise cancelling" mics sound awful. They work on the 
>principle of cancelling noise more than an inch or two from the 
>mouth. SUPER noisy places like aircraft are the ONLY place to 
>use them.
>
>Most hams who have too much background noise either don't work 
>the mic close enough (it should be an inch or two above and 
>alongside the mouth), or have processing and/or mic gain turned 
>up way too high.

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