Message-ID: <7FED57BBD95A4038B761E56BF3C8BF5A@TonyLaptop>
From: "Tony Baldwin" <ei8jk@o2.ie>
To: <rsgb_lf_group@blacksheep.org>
References: <6DEA7E8987244A48846E44813972D608@TonyLaptop> <38A51B74B884D74083D7950AD0DD85E82A1C61@File-Server-HST.hst.e-technik.tu-darmstadt.de>
In-Reply-To: <38A51B74B884D74083D7950AD0DD85E82A1C61@File-Server-HST.hst.e-technik.tu-darmstadt.de>
Date: Thu, 24 Jun 2010 19:59:48 +0100
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Subject: LF: Re: AW: Antenna wire
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Thanks for the answers folks, I didn't realise that a small diameter=
 wire=20
was OK, so that has save me some money as I have a sizeable roll of sm=
aller=20
cable.
I also have a pair of 6" heavy duty pyrex insulators, also some 3" pyr=
ex and=20
loads of china insulators of different design, plus I was wondering wh=
at I=20
was going to use for loading/matching coils when Alan mentioned transf=
ormers=20
(thanks Alan). I have a mains line transformer ... the sort you see on=
 poles=20
for transforming several KV to 220v, which has several miles of copper=
 wire=20
on two bobbins that I'd completely forgotten about.
Just goes to show it pays to hoard.
Tony, EI8JK.


----- Original Message -----=20
From: "Stefan Sch=E4fer" <schaefer@hst.tu-darmstadt.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Thursday, June 24, 2010 6:36 PM
Subject: LF: AW: Antenna wire


Tony,

If it doesn't matter about the weight of that cable, RG58 is not a too=
 bad=20
idea if there is a need to handle very high voltages. But since you to=
ld us=20
you will have a very long wire your antenna C will be high and so your=
 L=20
will be low and so your antenna voltage will be low as well. So there=
 is=20
probably no need to have an extra big wire. You can just take a thin=
 wire,=20
e.g. 1mm diameter. It has a little more resistance but that doesn't ma=
tter=20
since the overall losses will be much more.
So it's better to take many thin wires in parallel (spaced >1m) than=
 one big=20
wire :-)

73, Stefan/DK7FC

________________________________

Von: owner-rsgb_lf_group@blacksheep.org im Auftrag von Tony Baldwin
Gesendet: Do 24.06.2010 17:10
An: rsgb_lf_group@blacksheep.org
Betreff: LF: Antenna wire


Sorry to ask a stupid newbie question but what is the best wire for my=
=20
aerial ?
I had thought about getting a couple of 100m rolls of cheapo RG58 and=
=20
soldering the centre and screen together, or is there a better way ?
Tony, EI8JK