[600MRG] Best receiver settings

[N1BUG]

I have countless hundreds of hours hunting for optimum settings on 630 
and 2200m. I use a Softrock Lite II SDR. Software is HDSDR. I 
consistently find best S/N and more weak stations decoded using AGC FAST 
and two noise blankers (RF and IF in HDSDR).

I should probably note that most of the time I have strong 120/60 Hz 
impulse noise that must be blanked, else S/N suffers regardless whether 
I use AGC or not.

I suspect optimum receiver settings depend to some degree on local 
conditions.

73,
Paul N1BUG


On 3/31/20 10:38 AM, Dave Riley via 600MRG wrote:
> Thanks for all the answers...
> 
> I use the SDR-IQ to see noise floor and signal ratio.. Around here we 
> get plenty of -100 to -105 noise floor, YUK..
> 
> Adding the 300' loop on ground went a long way for sigs below 80m.. Home 
> brew 2 channel amplitude/phase variable usually finds a dip in noise.. 
> As Rudy pointed out, there sure are many noise sources and some real 
> interesting coherent sigs as well..
> 
> That settles it nicely for now..� 73s de DaveR @ aa1a