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Date: | Mon, 22 May 2006 08:56:46 -0400 |
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Thanks very much, Pat.
How was Dayton?
I was thinking about you guys, and hoping things went well.
Did you make any major exciting purchases?
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Pat Byrne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 22, 2006 8:32 AM
Subject: Re: question about coax feed lines
> Hi Tom,
> You should be fine. Any improvement would be minimal and I'm sure no
> one would notice it!! So enjoy what you have.
> Pat, K9JAUAt 07:19 AM 5/22/2006, you wrote:
> >Hi, all.
> >
> >I am finally making progress in terms of getting my new HF Predator
> >screw-driver-type antenna installed onto my RV travel trailer. Hope to
have
> >it done by this week-end. ... My question is this:
> >
> >The person helping to install the antenna has already put Belden RG8X
coax
> >on the antenna. The coax run will be about 20 feet, going from the back
of
> >the trailer to the inside where I'll have my Icom 718 HF rig. We will
have
> >the coax running in a PVC conduit which will run along the frame of the
> >trailer, and the coax will come up through a hole at an appropriate spot
> >inside the trailer.
> >
> >Someone has suggested to me that I really ought to be using thicker coax
for
> >this purpose, in order to minimize loss. I do have a 100 foot chunk of
RG8U
> >coax with a foam dialectric that I could get the needed coax from, but
don't
> >want to go to all the trouble of re-doing the already-existing
connections
> >on the antenna if it really won't make much difference.
> >
> >The guy who installed the original coax on the antenna looked Belden RG8X
up
> >in the ARRL antenna book, and found that it has .7 DB loss per 100 foot
on
> >10 mhz, so any loss for a 20-foot run would seem negligible to me.
> >
> >Am I ok here, or should I really consider the thicker RG8U stuff?
> >
> >I know there are likely to be a variety of opinions on this one, and I
> >suppose I could always change coax runs later, but I want to try doing
> >things right the first time if possible.
> >
> >Thanks as always for your very helpful advice.
> >
> >73 from Tom Behler: KB8TYJ
>
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