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Old 22 February 2014, 11:47   #1
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VHF radio

Just reading manual on new VHF radio set up, it says no one should be within a 3mtr range of aerial whilst transmitting, not sure it's poss on a small rib.how do others manage.
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Old 22 February 2014, 12:15   #2
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Originally Posted by TRevor Lawson View Post
Just reading manual on new VHF radio set up, it says no one should be within a 3mtr range of aerial whilst transmitting, not sure it's poss on a small rib.how do others manage.
I have plans to tin foil my Gecko - instead of course
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Old 22 February 2014, 12:18   #3
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I suspect it's a liability thing. I have never heard of a case of physical damage from VHF transmissions (not that I've looked all that much.)

You're right - You can't be 10 feet away from an antenna on a small boat, so that's kind of impractical. Realistically, you're not going to be transmitting all that much (well, I don't anyway), so I can't see it being all that much of a risk.

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Old 22 February 2014, 12:31   #4
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The frequency of marine VHF (156MHz) and the ERP of most antennas mean that there's relatively little to worry about.
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Old 22 February 2014, 13:13   #5
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Old 22 February 2014, 13:23   #6
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I remember the old CB radios used to light up a fluorescent light tube near the aerial.... Just like Star Wars.
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Old 22 February 2014, 13:29   #7
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Thanks for all replys a s been said not much transmission time so should be ok
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Old 22 February 2014, 13:38   #8
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I would have thought a handheld close to your head at 5W was more of an issue than 25W from an aerial probably high up on top of an A Frame
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Old 22 February 2014, 13:40   #9
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One reason why hand helds were only supposed to have a maximum output of 5 watts !
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Old 22 February 2014, 13:45   #10
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One reason why hand helds were only supposed to have a maximum output of 5 watts !
That and the fact that much more power would drain the batteries.
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