[aprssig] Mic-E and HTs

Tue Dec 13 20:59:51 UTC 2005

>>> wa8lmf2 at aol.com 12/13/05 1:37 PM >>>
>bruninga at usna.edu wrote:
>>Ill draw it...
>
>I don't see how the second half of your diagram 
>(the part labled "Combined PTT" could possibly work. 
> You show one side of the mic element grounded all 
>the time with PTT button then grounding the other 
>side, thereby shorting out the audio.    

Argh, your right.  I was too quick to draw that.
I fixed it now with the typical 2.2k resistor...

http://www.ew.usna.edu/~bruninga/mic-ePTT.GIF 

sorry,
Bob

Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
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