I would like to run some tests with heavy qrm above and below with the passband filter active to see how well it works.
I think a sharp mechanical filter rather than a software dsp filter would work much better.
Also maybe instead of using a bandpass filter.
2 or 3 DSP adjustable notch (band stop) filters could be added.
If I could notch out AM carriers on 9805 and 9795 kHz. I think I could then decode sackville just fine.
Last edited by ka2hzo : 25-07-2004 at 16:27.