Ed, That makes sense, I guess I never thought of the VDC side of the audio... I seem to recall trying pin 8 to no success, but I will try again tonight!
Justin --- In [email protected], Ed Yoho <[EMAIL PROTECTED]> wrote: > > jwpauler wrote: > > >Jay, Ed & All... > > > >Thanks for the pinout list and RSS advice, I'll try all of that tonight. > > > >In case it matters... The RSS I'm using is for the GM300's, which > >works great for those radios, I can program the option pins on the > >accessory connector with this software; when connecting a M120 and > >using the same software, I have the ability to program the radio, but > >I loose the option to customize the pins! This doesn't make sense! > > > >Again, what I'm seeing doesn't match even the service manual listing > >below, two of the pins see a 0.00vdc voltage at idle, and a 6.56vdc > >change when a valid signal is received. > > > >Thanks everyone! > > > >Justin > > > > > Justin, > > It is the audio output IC going to mid voltage when the receiver is > unsquelched. The audio output is a bridge mode device and sits at mid > voltage when enabled. When muted, it shuts down to lower its power > consumption. > > Try using pin 8 for your COS. > > Ed Yoho > WA6RQD >
