On Thu, 28 Oct 2010, Stefan Schäfer wrote:
There seems to be a tendency that E field antennas are performing better
than loop antennas in a noisy region and are mostly better than a long
wire antenna.
actually longwires are good as well, provided, that you tune them to the
frequency that you want to receive, and that you use some more filtering
afterwards (longwires receive a lot of lf/mf/hf signals, and these cause
BIG problems in sound cards).
i used both for Stefan's 7th experiment, and a comparison can be seen
here:
http://www.lipkowski.org/~sq5bpf/dk7fc_20101002/index_en.html
the lower S/N at the end of the transmission for the longwire is probably
due to too much gain, and some clipping.
both are quite usable, but i've decided to use the active antenna, because
then i can use the longwire for hf
VY 73
Jacek / SQ5BPF
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