Topband: vert & beverages

jbattin jbattin@msn.com
Tue, 3 Dec 2002 14:38:49 -0600


----- Original Message -----
From: <Telegrapher9@aol.com>
To: <richard@karlquist.com>; <topband@contesting.com>
Sent: Tuesday, December 03, 2002 7:23 AM
Subject: Re: Topband: vert & beverages


> Richard,
>
> You have a good point. I was thinking that one of the small cables (RG178
or
> RG179, note that these are not double shielded) would do the job and not
be
> so heavy and cumbersome. The advantage, I think, is to avoid having to lay
> the coax over rough terrain. This is just a paper design and has not been
> built. I thought I would throw it out to stimulate some thought. No doubt
it
> has been tried before. This could also be implemented using 300 ohm twin
lead
> instead of coax. W8JI would be a good one to review the design.
>
>    Dave WX7G
>

I would watch out for the losses in the feedline. RG-174 has almost 2db per
100 feet at a 1:1 SWR. Much too high.  This is why using a pair of wires or
open wire line is  a better choice.
John K9DX
>
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