jwpauler wrote:

>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
>  
>

Justin,

The COS output is open collector. To verify its operation, you can 
either put your meter on ohms or add a 10K or so pull up resistor to +12V.

Ed Yoho
WA6RQD

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