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Old 02 July 2007, 03:55   #1
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Aerial Splitter

Can anyone recommend a vhf/fm splitter and a place to buy from?
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Old 02 July 2007, 05:05   #2
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Try.......RS Components or CPC Farnell or Maplins for starters

all have web sites with search facilities.
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Old 02 July 2007, 05:31   #3
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Quote:
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Can anyone recommend a vhf/fm splitter and a place to buy from?

Was told in chandlery not long ago in dartmouth not to bother with one as it lowers performance of the VHF and fit two seperate aerials or just a bit of wire inside the console would work with the FM radio.

I know though www.yachtgrot.com used to sell them - send them an e-mail and ask as sometimes they dont have products listed etc
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Old 02 July 2007, 05:34   #4
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Personnaly I would not recommend a VHF splitter at all. Its another potential point of failure when most needed, failure could write of the VHF Transmitter, possible adverse effects of Voltage Standing Wave Ratio (VSWR) affect range or worse taking the Tx out. FWIW I would have two independant systems.
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Old 02 July 2007, 07:39   #5
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I think that you need to be a little more specific about what you are trying to achieve. As others have alluded to here, a simple passive splitter will halve the output power from your antenna. If you are thinking simply in terms of redundancy do what Hugh Jardon has done and have a spare antenna ready rigged and if you have a problem simply swap the connection.
Sorry Brian, but in my opinion you are highly unlikely to get VSWR problems, otherwise when an antenna feed failed the transceiver would go u/s. I think it would be a very poor design that did not incorporate some sort of open circuit protection.
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Old 02 July 2007, 09:54   #6
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Whilst I agree with the open circuit senario, there a numerous others that will cause High reflected power and thus cause Tx problems. I have seen this numerous times on Commercial equipment that has protection above and beyond any thing the leisure market has to offer.
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Old 02 July 2007, 14:50   #7
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Yep, I can think of numerous scenarios that will cause Tx problems, all that I was trying to point out is that we should not be too paranoid about antennas and cables cause transceivers to self destruct. Of course good practice is always a good idea...................
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Old 02 July 2007, 14:54   #8
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Old 02 July 2007, 15:18   #9
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now i am really cofused..
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Old 02 July 2007, 19:25   #10
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now i am really cofused..
Brian and Ian were making very good points, but the tech chat managed to mask it a little. In summary

1) Don't use a splitter unless you really have to - it'll compromise performance and is somewhere else for your kit to fail
2) Better solution is to have two aerials (one of which is not connected, but ready for use should it be needed)

HTH
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