W dniu 2011-09-05 14:32, Daniele Tincani pisze:
Hello
Stefan, LF,
I'm looking
for a suitable preamp for my "coming sooner or later"
tunable ferrite antenna (hopefully covering as much as
possible of LF band with a var. cap. plus some switchable
additional cap.). Any suggestions?
Best
regards
D.
Hi Daniele, Stefan, LF Group
Daniele, as already Stefan has pointed out you can use Jim, M0BMU
High-Z preamp.
I have used ( i think i have mentioned this in my earlier mails)
High-Z preamp in PA0RDT design of mini_whip antenna
I did it simply beacuse it was there ( some time ago i have built 2
miniwhips .. )
btw, quite recently i have found almost the same circuit as that one
of PA0RDT - pse, have a look here:
http://www.qsl.net/ko6bb/lf-preamp-2.html
Stefan,
Ok, i was indeed 'prepared' for your transmission and my 'patience'
has been awarded because i managed to receive
Ossi, OE5ODL using my ferrite rod antenna. Well, i was receiving
"5"'s but thanks to Chris, 4X1RF, later, i have learned it was
Ossi :) i am glad that you had successful RX experiments using
loops and ferrite rods and of course, i wiil try to listen to ur
signal in
forthcoming LF experiments.
73, Piotr, sq7mpj
qth: Lodz/jo91rs/
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