[Elecraft] mic

[kevino z]

Although headsets like my Heil Pro 7 may be more money, am I really "wasting" money on buying a "fancy brand name"  considering the unit consists of mic and incredible speakers? It is a complete package. Besides the amazing electret mic, the sound from the headphones helps me to enjoy the hobby more and allows me to pick out signals I would not be able to without them. I don't think you meant to, but your post came off as if we bought some snake oil.

-Kevin (KK4YEL)

No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !

> On Jun 11, 2017, at 10:41, Joe Subich, W4TV <lists at subich.com> wrote:
> 
> 
> Bob and Jim have excellent points.
> 
> There is one advantage for the electret mic compared to a dynamic
> mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
> and thus are much more resistant to common mode RF feedback and
> magnetic coupling.  However, that assumes the transceiver is
> designed for the higher input level and properly reduces gain
> before the mic gain control.
> 
> Mics of any kind - dynamic or condenser/electret - with wide frequency
> response are completely wasted for amateur radio (or any communications
> application).  You really want a clean 200 Hz - 4 Hz response.  Lower
> frequencies cause distortion and waste power, higher frequencies are
> simply lost in the "channel noise".
> 
> Like Bob and Jim, I spent my professional life in the recording and
> broadcast industries.  Amateurs waste far too much on over spec'd
> microphones and fancy "brand name" advertising campaigns.
> 
> 73,
> 
>   ... Joe, W4TV