[UK-CONTEST] RX Coax Loops

Berni GU0IDA g0ida at yahoo.com
Thu Mar 9 17:30:12 EST 2006


Chris,
   
  I noticed you are using 11ft of coax, it is supposed to be 10ft, the length is very critical !!
   
  Also the cut in the outer of the coax at the top is 1 inch, no more and no less.... quite critical measurements in a small loop like this.
   
  I've just built (with the help of Keith GU6EFB and his magnificent workshop) a 160m coax loop using RG58, the length is exactly 20ft, so is YOX's, very nice, a work of art if you get the chance to see it........ and the best thing is that these lops really do work !!
   
  All the best,
   
  Berni
  GU0IDA
  

G3SJJ <g3sjj at btinternet.com> wrote:
  I've been messing around with a coax loop from 80m based on the 160m 
loop that Bob GU4YOX is using but am not happy with it.

I have used 11ft of LDF2-50 in 3.5ft diameter circular loop. I started 
off with a 400pF variable C to tune it but could detect no difference 
throughout the span of the capacitor. I have added a 200pF fixed C but 
still no peak.

Any thoughts?

Chris G3SJJ
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