[Public-List] VHF cable

Paul Wilson dcmcrider at gmail.com
Wed Apr 17 05:31:22 PDT 2019


Here's a link to some coax attenuation charts, as well as cable diameters.

http://www.w4rp.com/ref/coax.html

LMR200 has 3.9 dB of loss per 100' at 150 MHz. (Marine VHF band is ~160
MHz.) RG8x has 4.7 dB/100'.

On Wed, Apr 17, 2019 at 7:27 AM Rod Symmes via Public-List <
public-list at lists.alberg30.org> wrote:

> RG8  and  RG8X are not the same item.
> RG8 is nearly 1/2" diameter, stiff and heavy.   8x is half the size and
> weight with ALMOST as low loss.
> I don't know the spec for LMR 200 to say how much of an improvement over
> RG8X it would be.
>
>
> Cheers,  Rod
>
> -------- Original message --------
> From: Philip Bartlett via Public-List
> Date:16-04-2019 10:53 PM (GMT-05:00)
> To: Alberg 30 Public List -- open to all
> Cc: Philip Bartlett
> Subject: Re: [Public-List] VHF cable
>
> You might want to use LMR 200. It’s lower loss, thinner and half the
> weight of RG8.
>
> Philip
>
> Sent from my iPhone
>
> > On Apr 16, 2019, at 5:41 PM, Christian Douglas via Public-List <
> public-list at lists.alberg30.org> wrote:
> >
> > I cut the existing VHF cable when I lowered the mast. Need to place a new
> > run to the top of the mast. The old cable is RG8X. Any thoughts on the
> new
> > cable? Any reason why I’d need a different cable?
> >
> > Christian
> > Kittiwake #76
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