Peter.
I have a Decca Preamp mounted on my Garden shed (Height 3.5 M.) and I have
a 0.75M. steel whip on it.
The shed is well away from any other buildings and the antenna seems to be
excellent although I have little else to compare it with.
I will scan the circuit and send it to you.
I have The LH0002 in obsolete but an LM6321in OKin the circuit. I have laid
out a PCB to which I added a single parallel 136 kHz. tuned circuit across
the input. The layout is available as a HPGL file for anyone interested.
I think the Decca drum antenna was that shape it was for electrostatic
reasons. The Decca signal were quite strong at each others site, so I guess
a high elevation was not necessary. However I now wish I had picked up the
drum and support pole when I had them in my hand. I could have put the bird
feeder on to to keep off the squirrels and cat!!
Robin G3LBA
----- Original Message -----
From: "g3ldo" <[email protected]>
To: <[email protected]>
Sent: Sunday, February 18, 2001 11:13 PM
Subject: LF: Re: Fw: Active antenna
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