[hpsdr] Wide bandscope

[Bob Cowdery]

Hi,

I have some questions regarding the wide bandscope. Yes, I'm still 
playing with Atlas based protocol 1 system after all these years!

Metis V3, Mercury V3.4, Penelope V1.8

1. Could someone explain what the wide bandscope should show. The noise 
floor seems to be constant across the frequency range and does not 
follow the actual noise floor. Also the display varies with the receiver 
frequency giving the impression that the data is going through a 
bandpass filter. With 3 receivers all 3 have an effect.

2. I'm not sure if I should be taking 4096 or 16384 samples to process 
as the documents are ambiguous.

3. I've got the implementation wrong somewhere, never been sure about 
how to process this stuff. I followed what KISS does but have not ended 
up with the same display. The code for that part is in C so if anyone 
would like to help spot the problem I will post it.

Thanks for any help

Bob - G3UKB