--- In [email protected], "mungewell" <si...@...> wrote:

> Appologies for thread-digging, 

No appologies this time... ;-)
 
> If one of you guys has the ability to rig up the mic to a scope (or C-IV 
> interface) and post a capture, we might just be able to decode what these are 
> doing...

Someone has actually scoped out what these mic's do:
http://tinymicros.com/wiki/Icom_HM-98/HM-133_Internals

Confirms that PTT is software driven and opens up the possibility for 
'psuedo-remote control'.

> 
> Cheers,
> Simon
> VA6SDW
>


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