andy59
Well-Known Member
Just checked the output on my RS87 and high output is 25w,. . . and the twig is right next to my head 
You and the family have to stand on the bow whilst using the VHF.
got to keep safe ?
Warning signs about who and when it is safe to stand in the vicinity of the aft mounted VHF antenna when transmitting and not to climb to the top of the mast unless you have the radio room key in your pocket. Probably lots more.77 pages inh the first noticeJust got it too.
So what does it mean for the average boat?
The extract I posted in #16 from my user manual states 2.1m. Which is ok if it means on a level plane with antenna, but it doesn’t say that. If I stand directly below the antenna, which should be ok in theory, I’m only around 0.5m away. Could be tricky with an officious inspector on board.
No, seriously. It's all quantum physics above. I'm the brightest one in the Welsh Mob and it means gobbledygook to me. Roy may be more intimate with his. He polishes it like everything else frequently. Is that what's upsetting polite people on the beaches?
So for my main VHF, if I talk for say 30 seconds over their averaging period of 6 mins I use .08 as a factor on my wattage of 25w. So I use ~2W power at the ave freq of 165Mhz in their calculator. That means I must keep the public 0.45m from my masthead. I might manage that. Good job my antenna is not on my cockpit rail or I might have to draw a .45m radius arc on the deck with 'no public entry' written in it.
I find this hilarious.
An installers certificate will be required. Followed by the restriction of sales of new equipment to registered professionals only.
Warning signs on the mast!
There will be the annual inspection certificate.
The insurers will use this to void insurance if a current, valid certificate is not available.
So for my main VHF, if I talk for say 30 seconds over their averaging period of 6 mins I use .08 as a factor on my wattage of 25w. So I use ~2W power at the ave freq of 165Mhz in their calculator. That means I must keep the public 0.45m from my masthead. I might manage that. Good job my antenna is not on my cockpit rail or I might have to draw a .45m radius arc on the deck with 'no public entry' written in it.
I find this hilarious.
Warning signs on the mast!
only when in WalesAre they worried people are going to lick it?
add in the gain and how do you do that ... and find out what the gain is in the first placeIt's not 25W, you need to add in the gain of your antenna.
From what I’ve read you’re still expected to do the risk assessment.Im presuming this applies to the antenna and not the radio set itself and if so then an antenna up a sailing boat mast is surely irrelevant ?