Message-ID: <001e01bf5c2b$d6e76020$05d725c3@194.95.193.10.fen.baynet.de>
From: "Walter Staubach" <ba338@fen.baynet.de>
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: Bad experience with loop ant
Date: Tue, 11 Jan 2000 13:02:17 +0100
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Hallo Petr,
  this morning I compared my L-antenne (6x25m, up 8 to 10m) with the
portable loop (24 turns, 0.6 x 0.6m) by receiving the "big gun" on 128.930
MHz (exact?). Both were carefully tuned to that frequency.
        L-antenna:  30,0mV
        Loop         :     0,25mV                     both at 50ohm
Maybe you can make a comparison like this?      73 Walter   JN59NO


-----Ursprüngliche Nachricht-----
Von: Petr Maly <p.maly@gmc.net>
An: 136 group <rsgb_lf_group@blacksheep.org>
Datum: Montag, 10. Januar 2000 17:50
Betreff: LF: Bad experience with loop ant


>Hello LowFers.
>
>I have made loop ant for rx and it seems not to work satisfactorily. Size
is
>1.75m x 1.75m. Everything is done as usual, with grounded middle and
>amplifier with 2 x BF245, tuned properly, etc. Output level from the
>amplifier is high enough. I can hear Greek RTTY, also galloping horses a
>little, but no poor HAM sigs. My LW 40m, that is in average height of about
>6 m only, is much better. The only thing I am in doubt is the number of
>turns. It has got only 18 turns (I used flat cable that was available at
the
>moment). Could this be reason for the bad results? What are your
>experiencies with loop ant? Can loop ant be as good as "big" Marconi?
>
>73! Petr, OK1FIG
>
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