[amsat-bb] Re: L/S helix feed

[Grant Hodgson <grant@xxxxxxxxxxxxxxxxxxx>]

Charlie G3WDG has designed a dual, concentric helix feed and microstrip 
filters to reduce the de-sens to very low levels;  details are on his 
website :-

http://www.g3wdg.free-online.co.uk/dual.htm

regards

Grant  G8UBN
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