[600MRG] 630m noise

[K9FD]

Ill bet a notch filter tuned to 474.8 would do wonders for killing the 
carrier and
also drop the noise level.


> Maybe a notch filter might work, too?
>
> On Monday, January 6, 2020, 9:49:34 AM EST, Dave Riley via 600MRG 
> <600mrg at mailman.qth.net> wrote:
>
>
> Is anyone here working on a way to increase their sig/noise ratio on 
> 630m??
>
> My WSPR receiver has been relatively deaf but I may be on the road to
> better sigs..
>
> With the SDR receiver on 475 khz. and set for long FFT times I see a
> wandering, wide, noisy carrier coming down the water fall usually around
> 474.8 or so...
>
> And I see upper sides bands of the same 'carrier' going up through 476+...
>
> I broke out the old Dallas Lankford home brew phaser and am using the
> 80m windom as the noise antenna with the vertical loop as receive input...
>
> I see instant increase in signal and strength gathering of WSPR sigs..
>
> It is a work in progress so I'm looking for hints and kinks info..
>
> TNX from DaveR @ aa1a
>
>
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