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VHF radio & aerial on a rescue rib

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=7103
Printed Date: 17 Aug 25 at 9:47pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com


Topic: VHF radio & aerial on a rescue rib
Posted By: didlydon
Subject: VHF radio & aerial on a rescue rib
Date Posted: 03 Sep 10 at 11:45am
Hi All. I've been tasked with fitting a fixed radio & aerial to our rescue rib. (Previously we've just used a handheld.) We're getting a nice new Icom & also a Vtronix raider aerial suitable for a rib. I planned to fit the aerial somewhere to the front of the console, but on doing a bit of research on tinterweb, it's not recomended fitting it where people can touch it as you can get burns from it if transmitting at the same time!  Is this seriously a problem? Where is your club boats aerial fitted? If need be I'll have to fit it on a mast on the transom, but I can't seem to find something suitable on all the chandlery sites i've checked out so far.... Recomendations please chaps.........

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Vareo 365




Replies:
Posted By: radixon
Date Posted: 03 Sep 10 at 1:12pm
I Err thats a load of rubbish.

The club ones and my own rib are all positioned on the console, no issue of "burning" yourself as they dont even get hot. Thats the first I have heard of it.

If you want me to ask others let me know and I'll throw this out at the pub.


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Posted By: Contender443
Date Posted: 03 Sep 10 at 2:50pm

As long as you transmit on the same power as a handheld there will be no problem with the antenna. You can hold the antenna on a handheld so why is it different with a fixed unit.

Why are you going for a fixed unit in a rib? If you on the sea it is not so easy to wah the salt off.

As far as ariel positioning goes to improve the signal go as high as possible. Just been on a flotilla holiday where the lead crew always used a handheld for mooring. If you were any distance away you could not hear them but you could hear the other yacht used a fixed unit and mast head ariel.



Posted By: didlydon
Date Posted: 03 Sep 10 at 6:44pm
Right..... update.... Spoke to Icom who reckoned it
wouldn't be a problem - Only happens on high frequency
stuff apparently... I thought it was cobblers but wanted to
check... Yep, obviously, the higher the antenna the greater
the range... As we don't want to clutter the boat with a
mast that'll get in the way I think on the console is OK...
We thought a fixed in the boat job would be good idea in
that it's always with the boat & "charged up" - if you know
what I mean!

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Vareo 365



Posted By: radixon
Date Posted: 03 Sep 10 at 8:56pm
The one we have on our rib cost about £50 for the ariel but is sooo good it beats others, I'll try and find a link



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Posted By: Garry
Date Posted: 03 Sep 10 at 9:10pm
Problem with fixed installation is crews forget to turn
them off = flat battery next time you want the safetyboat.

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Garry

Lark 2252, Contender 298

www.cuckoos.eclipse.co.uk


Posted By: blueboy
Date Posted: 04 Sep 10 at 6:14am
Originally posted by didlydon

We're getting a nice new Icom & also a Vtronix raider aerial suitable for a rib.


Hmmm.....salt-water proof microphone?


Posted By: didlydon
Date Posted: 06 Sep 10 at 9:51am

Originally posted by Garry

Problem with fixed installation is crews forget to turn
them off = flat battery next time you want the safetyboat.

Depends how you wire it up..... The right side of the isolation switch of the battery kills the power to everything....



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Vareo 365



Posted By: Mister Nick
Date Posted: 06 Sep 10 at 8:14pm
I don't think having the aerial within peoples reach is an
issue, my local scout group has an XS Rib with a built in
VHF, and the aerial is right on the console, a few inches
from the wheel. No one has ever been hurt by it.

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