Re: LF: Re: Re: Re: Antenna wire

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Mal,

Wire you stirring things up again?

73s
Roger G3XBM

On 25 June 2010 17:55, mal hamilton <g3kevmal@talktalk.net> wrote:

He is winding u folks up !!!!!!!!!!
A radio amateur for 40 years and never heard of WIRE

----- Original Message -----
From: "Tony Baldwin" <ei8jk@o2.ie>
To: <rsgb_lf_group@blacksheep.org>
Sent: Friday, June 25, 2010 10:14 AM
Subject: LF: Re: Re: Antenna wire


> Sorry to bewilder you Dave, but when it comes to LF wire aerials I really
am
> a complete newbie.
> Although I've been licenced for over 40 years now, I have spent all my
time
> up the "other end" of the spectrum.
>
> So, no I haven't really got 100m rolls of stranded cable kicking around in
> my shack. I do have a 6 foot dish, a couple of 30 foot long 2m yagis etc,
> etc, so any wire needed for a 136 aerial I will have to go out and buy,
and
> before I did that I wanted to make sure that I wasn't wasting my money on
> the wrong stuff, plus wire shops are few and far between down this neck of
> the woods.
> The only wire locally (nearest 15 miles) is CB & TV coax, twin and earth
> electrical and electric fencing wire, anything else is a 120 mile round
trip
> to Cork city or arm and a leg postage.
> Thanks for the tip about loudspeaker cable, that might be possible
locally.
> 73, Tony, EI8JK
>
>
> ----- Original Message -----
> From: "Dave Sergeant" <dave@davesergeant.com>
> To: <rsgb_lf_group@blacksheep.org>
> Sent: Friday, June 25, 2010 9:29 AM
> Subject: LF: Re: Antenna wire
>
>
> >> Sorry to ask a stupid newbie question but what is the best wire for my
> >> aerial ? I had thought about getting a couple of 100m rolls of cheapo
> >> RG58 and soldering the centre and screen together, or is there a better
> >> way ? Tony, EI8JK
> >>
> >
> > I have been watching this thread with some bewilderment...
> >
> > If the antenna you are putting up is a form of longwire, dipole
> > (shortened I guess..), doublet, G5RV etc then it honestly doesn't
> > matter one bit. Any piece of cheap stranded wire will do, and the only
> > requirements are mechanical, ie to ensure it stays up in the air.
> > Normal stranded 19/.76 or whatever will do. Most of us have plenty of
> > this lying around the shack. There is absolutely no purpose in using
> > coax, or for that matter heavy electrical cable, as you will struggle
> > to keep this horizontal and its weight will soon break the guys.
> >
> > If on the other hand you are talking about resonant loops, then it is
> > important to keep the dc resistance as low as possible, especially on
> > 136 where the radiation resistance is miniscule. When I used a loop on
> > 136 I used heavy gauge loudspeaker cable, readily available in 100m
> > rolls, with the pair shorted to make a single conductor. Don't bother
> > with the 'oxygen free' stuff, that is throwing money down the drain.. I
> > don't think coax, any sort, will give you as low a dc resistance.
> >
> > 73 Dave G3YMC
> >
> > http://www.davesergeant.com
> >
> >
> >
>
>
>

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G3XBM    GQRP 1678      ISWL G11088