On Mon, 24 May 2010, Roger Lapthorn wrote:
- The best DX targets are quite modest: I would like to exceed 1km
initially with the TX power I currently have (around 4W). If I could reach
G6ALB in the next village 3kms away I would be delighted. If I got any
further I would be both amazed and VERY happy!
Roger - try an e-field antenna. for a few years i have been doing tests
with loops, and the results were not that good. the best distance was
about 700m in the city during wintertime with about 40W. i wish i had
tried an e-field antenna earlier.
the first results with a 40m horizontal wire abt 15m up were far better. i
got 1.3 km without problems using about 3W in april (so more qrm than in
winter):
http://acid.ch.pw.edu.pl/~sq5bpf/ham/vlf/sq5bpf_vlf_test_20100406.jpg
the matching was done via a tv transformer, which i see is getting quite
popular now :)
since you're in a village area you will probably have much less qrm. 3km
in the winter seems to be a realistic goal.
vy 73
Jacek / SQ5BPF
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