[Elecraft] OT (Yamaha Cm 500)

[Jim Brown]

On 11/15/2010 7:35 PM, Chris Hembree wrote:
> Just got my CM 500 today. Would someone please tell me what the black box with 2AAA batteries is for.

It's for when you want to use the mic with something that does not 
provide voltage for the electret element.  Contrary to what some Yamaha 
descriptions says about the mic, it is an electret mic, not a dynamic 
mic.  You do NOT need it with a K3. Simply plug it into the rear panel 
mic connector, turn on the bias (see the manual), and adjust levels just 
like you would with any other mic (again, following the directions in 
the manual.
> Plus how do you like the mic on the cm500?

I love it, and so do most who have used it.  It provides very clean 
audio, and, using TXEQ can easily be made very competitive for 
contesting and DXing, or more mellow for casual rag chewing. It sounds 
better than most Heil mics I've heard.  Recommended TXEQ for the CM500 
is max cut of the two lowest bands, somewhere between 6dB cut and max 
cut of the third band, depending on your voice, and flat (0 dB) for the 
remaining bands. Use the LOW setting for Mic Gain in the Menu.

73, Jim K9YC