Roger,
increasing the loop from 70 sq m to 80 sq m should increase the radiation resistance by (8/7)^2 = 1.3 = +/- 1dB.
Having the loop wire laying on the ground certainly adds some losses, but probably the wire resistance loss is dominating.
73, Rik ON7YD - OR7T
This afternoon I dropped the lower part of my loop so it now lays on the ground. Tuning seems unaffected, but the loop area is about 10sq m greater. Overall it is hard to see small changes but G3XIZ does seem to be giving me a consistent -22dB which is
maybe 1dB better.
My 137.5kHz WSPR beacon is on this evening and I'd dearly love to get a few new reports, maybe from a little further away. Clearly at any distance copy will be right on the edge.
73s
Roger G3XBM
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