Thanks, Lou.

73 de Tom Behler: kB8TYJ

----- Original Message ----- 
From: "Louis Kim Kline" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 22, 2006 5:27 PM
Subject: Re: question about coax feed lines


> Hi Tom.
>
> Don't listen to the purists.  When you are dealing with a piece of coax
> that short, the losses are insignificant.  You could even get away with
> running RG58u in a 20 ft. length.  Some people don't use their heads.
>
> I'd leave the '8X on and go with it--you'll never ever notice the
difference.
>
> 73, de Lou K2LKK
>
>
>
> At 08:19 AM 5/22/2006 -0400, 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
>
> Louis Kim Kline
> A.R.S. K2LKK
> Home e-mail:  [log in to unmask]
> Work e-mail:  [log in to unmask]
> Work Telephone:  (585) 697-5753
>