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From: "Mike Dennison" <mike.dennison@ntlworld.com>
To: rsgb_lf_group@blacksheep.org
Date: Mon, 14 Feb 2011 16:56:44 -0000
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Subject: Re: LF: G4AYT?
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> I am using a TS690s Internal preamp on. No external amp. Best results
> were with the TX tuner=A0600mm diam resonant transformer from a LW
> antenna=A0up13m 35m long sloping down to about 5m (slope temporary). Up
> wire touches only at tuner OP and two through the wall thin PTFE
> washers and at the top of antenna up lead using a deep ribbed glass
> insulator 8inches long far end plastic dogbone. All comments welcome.
You may need an external pre-amp. See several books and web sites for=20
circuits. Your insulation should not be a problem on receive.
I forgot to mention that I get some advantage from driving Argo very=20
hard - well into the red zone - and via a crude limiter (back-to-back=20
diodes). The AF distortion introduced is counter-intuitive but it has=20
been found by me and others (Jim, M0BMU calls his limiter a Hendrix-
izer) to gain a dB or two in SNR with only a small increase in=20
background noise.
Mike, G3XDV
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D