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Thread: AIS antenna

  1. #1
    Join Date
    Sep 2007
    Location
    San Francisco Bay Area
    Posts
    2,095

    Default AIS antenna

    What antenna are folks using with their AIS units?


    Has anybody used the quarter-wave antenna sold by miltech? I like the price and the fact that you don' t have to install another full-sized antenna.

    http://store.milltechmarine.com/vhfpoan.html
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  2. #2
    Join Date
    Sep 2007
    Posts
    59

    Default

    I used a cheap little 6" long antenna on the pushpit. It worked fine. I believe others have used similar cheap little antennas for AIS with good results. Unfortunately, I will probably have to find somewere else to put it (perhaps on a little antenna mast) because my monitor and solar panels will now take up all the space on the pushpit.

    - Tom Kirschbaum, Feral

  3. #3
    Join Date
    Nov 2007
    Posts
    609

    Default Antennas

    I have both of these antennas.... very small, light and inexpensive. One for the masthead and one on a rail for AIS.

    http://www.shakespeare-marine.com/an...p?antenna=5216

    http://www.shakespeare-marine.com/an...p?antenna=5912

  4. #4
    Join Date
    Jan 2008
    Location
    On board 'Nereida' when possible - in S.Africa just now
    Posts
    33

    Default AIS Antenna

    I'm using the Milltech Smart Splitter on my VHF antenna - works without any problems... so no extra antenna needed.
    Either feed it into my AIS stand-alone display or into my laptop Nobeltec software - whichever I fancy (but not simultaneously)

    Cheers,

    Jeanne
    "Nereida"
    Colon, Panama
    (keeping my fingers crossed!)
    Jeanne "Nereida"

    www.svnereida.com

  5. #5
    Join Date
    May 2008
    Posts
    2

    Default

    I use a stainless whip antenna, size used on top of mast (3' ?) and was able to pick up targets at 24 miles. I have it connected to the Milltech SR-161 and the Vesper Marine Watchmate System.

  6. #6
    Join Date
    Sep 2007
    Posts
    3

    Default Which AIS to buy?

    Am trying to figure out which AIS to purchase for the SHTP. So far, I think I understand that the systems with alarms are the Milltech Watchmate (with a stand alone text only display) or the system from England (with a stand alone chart). I definitely want an AIS with an alarm and would prefer not to have to go through my computer to get the info. Are there other options that meet these criteria? Any strong opinions?

    Thanks for your help.
    Barbara "Islander" Euser

  7. #7
    Join Date
    Sep 2007
    Posts
    3,688

    Default

    Welcome to the boards, Barbara.

    Here's my post from another thread on this subject:

    "NASA's 'AIS Radar' is still the ticket at the simple/low cost/low power end of things. I didn't miss having CPA, the alarm was plenty loud and although I had a laptop I was glad not to have to rely on it for the AIS to work, not to mention the power savings. (The laptop and its converter were one of the biggest power draws on the boat.)

    The AllGadgets guys will send a unit via DHL and you'll have it in 3-4 days:

    http://www.allgadgets.co.uk:80/ag/pr...pf%5Fid=AG3928

    You might want their cradle bracket too, unless you make your own."
    __________________________________________________ _________

    I think you're already considering this unit but I'll endorse it again. Even with the lousy exchange rate this is cheaper than the nearly-identical Sitex unit available in the U.S.

    Another option is the unit "Mischief1" is selling on our Buy/Sell board. Mischief is a J/92 in Florida. I know her owner (and have sailed on his boat) and I suggested he list his AIS for sale here. It's the Vesper Marine "Watchmate" unit. To answer your question, I'm not aware of any other stand-alone AIS's at the lower cost end.
    Last edited by BobJ; 06-04-2008 at 12:05 AM.

  8. #8
    Join Date
    Oct 2007
    Location
    Alameda CA
    Posts
    174

    Default AISWatchmate might be a better choice

    http://www.milltechmarine.com/products_watchmate.htm

    http://www.vespermarine.com/buy.shtml#USA

    http://www.vespermarine.com/news.shtml

    Before you make your decision, check out the AISWatchmate at the links shown above.

  9. #9
    Join Date
    Sep 2007
    Location
    San Francisco Bay Area
    Posts
    2,095

    Default

    The Watchmate system did look like a good get-up, and when I telephoned Miltech to ask them about it I got a really helpful and courteous response. On the other hand, it's a lot more expensive than the NASA unit.
    1968 Selmer Series 9 B-flat and A clarinets
    1962 Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

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