To: [email protected]
From: [email protected]
Date: Tue, 24 Nov 2009 09:08:50 -0800
Subject: Re: [Repeater-Builder] Best coax for marine use
At 08:17 AM 11/24/2009, Vernon Densler wrote:
>
>
>I have been in a big discussion with the guys on my boat list about
>the right coax for running up the mast for VHF marine radio.
>
>
>
>Keeping in mind that we are talking about a 70' or so run going up
>the center of an aluminum mast, in a salt water environment, and the
>radio is limited to 25 watts.
>
>Also keep in mind that when off shore this is a life line and the
>best possible send and receive is needed in an emergency situation.
>
>
>
>So given the criteria what is the best possible coax to use knowing
>that thickness matters and bend radiuses may be tight? Others on
>the list are saying "just grab any old 8X type cable and you will be
>fine". I say use something with very low loss and suggested small heliax.
>
>
<---When we bought our sailboat and before I first had the mast
stepped, I ran 2 lengths of 9913 up inside it, 1 for a dual band
antenna and 1 for the marine VHF. Never looked back :-)
Ken
----------------------------------------------------------
Now that's a decent suggestion however the most important thing is use the best
connectors possible ( stainless if you have them ) and wrap all joints well
with self sealing rubber tape
One drop of salt water in the cable and the signal wont go anywhere
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