Brett:

the coax with the foam dialectric was the thicker RG8U type, and the foam
dialectric was one of the reasons why I hesitated to use it for this
installation, even though it was thicker.  There will be some bends we'll
have to work around, which is why I have decided to go with the Belden RG8X.

Thanks much, and 73 from Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Brett Winchester" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 22, 2006 7:30 PM
Subject: a note on coax


> To the Lister with question about coax and the rv.
>
> At the frequencies you are using the 8x will work fine.  I do recall
> your mention of a foam conductor  conductor and my only concern is that
> the bends in this type of coax not be sharp ones as the foam does not
> provide stable (mechanically)  insulation and dielectric separation as
> other inner insulations provide.  I have seen cases when the center
> conductor compresses the dielectric to a point that it nearly touches
> the braid in the coax and could cause problems at higher powers.  On the
> other hand this was older military coax (though new packages.)
>
> If your bends are gradual and do not put too much strain on the
> mechanical nature of the coax it will work fine.    Good luck.
>
>
>
> Thank you!
>
> BRETT K WINCHESTER  PM  KD7JN
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