[R-390] PowerSDR

[Bill Kulze]

Dave, the attenuator is a switched pad of resistors, actually about 100 
ohms impedance, but for this it's ok. Just so we're on the same page, 
PowerSDR is software. The hardware from them is the FlexRadio. You do 
need a hardware interface to get the 455kHz IF from the R390a to a 12kHz 
if to the soundcard.

Have fun with it, I've found it to be an aid in alignment also. Kinda 
acts as a spectrum analyzer where I can see the shape of the filters as 
well as the tuning peaks.

Have fun
Bill KC2SUO


David Elsea wrote:
> Bill,
> Thanks for the response.  How do you attenuate the IF?  I will 
> probably use PowerSDR.  I've seen some other hardware that is 
> interesting.  Maybe I experiment and post results.  Happy 
> hamming.           Dave w6dke
>