Re: [Discuss-gnuradio] question about mux

[Martin Dvh]

Hi Chuck,
> Ok - I was assuming all DDC/DUC's were set to the same.
>
> When the other cable between J19 & 48 is removed the scope
> channels 3 & 4 flatline, just as expected.
Just checking we understand each other.
If you remove the cable between J19 & 48 both 1&2 and 3&4 receive channels 
flatline?

The purpose of my question is to see if the two channels interact 
(cross-modulate).
This is easally seen if you just pas through one of the channels and see if the 
waveform of the still connected channel changes.
If it changes, there is some interaction.
If it doesn't change, there is some other problem.

greetings,
Martin