AIS aerial vs AIS/VHF splitter

[BrianH]

I was under the impression I was talking abut AIS transceivers for spltters so that the signals could be deciphered
my apologizes if this was not clear the pricing is therefore about right :encouragement:

That almost sounds like transceivers were the ancillary devices for the splitters when I would have thought the converse was the case.

Receivers are where signals are "deciphered" from the antenna, a splitter is typically a receiver protection device that electronically gates off another receiver when a second device transmits a signal with a power that would otherwise damage the receiver's input circuitry or corrupt the incoming signals.

An AIS or radio transceiver knows when it transmits and blocks its own receiver internally and automatically, but it doesn't know when another, independent unit will do so, ergo, an intervening splitter between two independent TX/RX units and a common antenna.

But, of course you knew all that very basic stuff so there is no excuse for sloppy terminology.

 

[moomba]

That almost sounds like transceivers were the ancillary devices for the splitters when I would have thought the converse was the case.

Receivers are where signals are "deciphered" from the antenna, a splitter is typically a receiver protection device that electronically gates off another receiver when a second device transmits a signal with a power that would otherwise damage the receiver's input circuitry or corrupt the incoming signals.

An AIS or radio transceiver knows when it transmits and blocks its own receiver internally and automatically, but it doesn't know when another, independent unit will do so, ergo, an intervening splitter between two independent TX/RX units and a common antenna.

But, of course you knew all that very basic stuff so there is no excuse for sloppy terminology.

erm I think I did hee hee , its starting to fry my brain I will just plug and play and hope it all works
But this thread has been really interesting and shows the power of a collective of minds working together :encouragement:

 

[Daydream believer]

Indeed.
But I could cobble together a useful post from 'junk' and get a cheap aerial for significantly less money.
If you've already got a stubby aerial, it's tempting to go the post route.
How much are AIS splitters these days?

You do not even have to use "junk" . there are hundreds of garages all over the country with unused, no longer needed, extending sailboard booms, from over aged Robbie Nash dreamers.
Cut the straight parts of one of those & fit it to the pushpit so that a bit of curve bends it round to a deck gland where the wire passes protected to below deck. Fit the mast with 2 "U" bolts from Proboat Stick the aerial on top & you can even have it a bit higher in foggy weather or in the Channel if you want to see a ship leaving Harwich ( although I have no idea why you might want to; other than to brag on the forum about how far you can see) . Apart from range, It is high enough to be protected from lassoing mooring lines etc
I used the other half on the other quarter to stick an Echomax active radar reflector.
The anodising is normally first class & the strength is good ( well it had to be for a sailboard boom)

 

[Plum]

You do not even have to use "junk" . there are hundreds of garages all over the country with unused, no longer needed, extending sailboard booms, from over aged Robbie Nash dreamers.
Cut the straight parts of one of those & fit it to the pushpit so that a bit of curve bends it round to a deck gland where the wire passes protected to below deck. Fit the mast with 2 "U" bolts from Proboat Stick the aerial on top & you can even have it a bit higher in foggy weather or in the Channel if you want to see a ship leaving Harwich ( although I have no idea why you might want to; other than to brag on the forum about how far you can see) . Apart from range, It is high enough to be protected from lassoing mooring lines etc
I used the other half on the other quarter to stick an Echomax active radar reflector.
The anodising is normally first class & the strength is good ( well it had to be for a sailboard boom)

A very good arrangement. I made my own AIS receiving aerial out of a lenth of coax cable and at just 2m above sl receives ships at 10 miles which is enough for me.

www.solocoastalsailing.co.uk