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Old 15th Feb 2018, 8:12 pm   #37
Andrew2
Octode
 
Join Date: Mar 2010
Location: Dukinfield, Cheshire, UK.
Posts: 1,353
Default Re: My first frame aerial

Quote:
Contextually, I'm wondering if, for MW reception, there could be a place for something like the noise-blanking system used in US WWII aircraft where they phased the signal from the main antenna against the signal from a 'noise antenna' that was deliberately sited in amongst the spark-plugs of the Wright "Cyclone" 24-cylinder radial engine...
That's exactly what I do. I have a homebrew phasing unit which takes the input from the main antenna (a loop) and a short wire antenna and mixes them together with adjustable amplitude and phase. The loop doesn't pick up much noise, but there are a couple of local SMPS and plasma tellies that barge their way in, and the phaser can work wonders on these if I put my anorak on and get twiddling.
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