[600MRG] 630m noise

[Edward R Cole]

Just my opinion.  But a 1/4 WL BOG is 480-foot 
long on 630m; fine if you own acreage (eg: a 
farm).  But it might be directional which a small 
rotating loop could notch out.

73, Ed - KL7UW
off air until summer; loading coil removed for 
new lawn and radials need to be replaced on Invert-L

0At 07:21 AM 1/6/2020, K9FD wrote:
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>Ill bet a notch filter tuned to 474.8 would do 
>wonders for killing the carrier and
>also drop the noise level. Â
>
>
>>Maybe a notch filter might work, too?
>>
>>On Monday, January 6, 2020, 9:49:34 AM EST, 
>>Dave Riley via 600MRG 
>><mailto:600mrg at mailman.qth.net><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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73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   dubususa at gmail.com 
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