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Old 09-29-2015, 01:33 AM   #21
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I have the Comar CSB 200 myself interfaced with Costal Explorer. I use a dedicated 4 ft antenna with 4 foot separation. Never loose a signal. Has always worked perfectly.
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Old 09-29-2015, 11:46 AM   #22
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I also contacted Raymarine on antenna separation. You need at least 4' space between your other antennas. I now need to move an antenna.
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Old 09-29-2015, 06:32 PM   #23
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I also contacted Raymarine on antenna separation. You need at least 4' space between your other antennas. I now need to move an antenna.
I put my 4ft ais antenna on top of my mast. My vhf's are on each side of the bridge house. Nice natural separation with good height.
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Old 09-30-2015, 07:42 AM   #24
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I bought a Shakespeare Galaxy 4'. I plan on mounting it on the front of the flybridge, it has a small round flat area above and behind the spotlight that should accommodate a flange mount. This will separate it from the other VHF antennas, I have 2 GPS antennas mounted on the dash, one each on the port and starboard sides.


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Old 10-01-2015, 05:38 PM   #25
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+1
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Old 10-03-2015, 12:02 PM   #26
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Questions on AIS Antenna

If you search out my thread on troubleshooting the Sitex MDA 1 Metadata Class B AIS transceiver, you may find some useful tips and hints. I installed the Shakespeare 5225-xt antenna which was was recommended by the Seattle rep. In the end all of my difficulties with the install came down to the antenna. Note that you may find the unit won't "transceive" unless the vessel is moving.

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Old 10-03-2015, 12:23 PM   #27
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Found what I need is a AG100 from Comar. Did a search and bought a Furuno GPS antenna with the the same specs for $26.00 shipped. When completed I'll have $300.00 give or take in this project. Now to find a VHF antenna.


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Wow!!

What did you pay for the transceiver?
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Old 10-04-2015, 04:50 PM   #28
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Wow!!

What did you pay for the transceiver?

$230.00 / free shipping, I had a saved search on eBay and a seller listed 5 units for $295.00 or best offer, I started at $200.00.


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Old 10-10-2015, 01:21 PM   #29
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I've had the West Marine AIS-1000 for more than 5 years. I leave it on 24:7. This summer I noticed on Marine Traffic that my position hadn't updated since June. Receive worked fine and I didn't notice the transmit error light on the front. Replaced the dedicated whip, no joy. Carried into WM and their tech called me this week - he's going to swap to a new motherboard for $200 (plus tax), and mentioned he's starting to see a few failures of the older units. I think I'll power it down in the off season.


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Old 10-10-2015, 02:50 PM   #30
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I noticed several AIS units are on 24/7 in my marina, not sure I understand why. Most things have a finite life, why use that life when not needed? I doubt a thief would be kind enough to leave one on, and no real risk to other boats tied to the dock.

Please tell me the reason to leave the units on, I stumped.
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Old 10-10-2015, 03:49 PM   #31
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The reason electronics are left on is condensation. The theory being that powered equipment is not as prone to moisture. National Fisherman had an a lengthy article about it several years ago. Not sure I buy into the theory, but it did make some valid points.
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Old 10-10-2015, 05:22 PM   #32
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Questions on AIS Antenna

Well...if there are socketed chips, thermal expansion and cooling can work them out (part of the reason PC CPUs are clamped). Also surges at power on are bad. Balancing that is finite life of components like capacitors.

For me, though, it's convenience. I leave my pilothouse nav laptop (Coastal Explorer, Actisense to NMEA2000, and AIS) on, and it's also running Blue Iris for my cameras, keeping my Dropbox synced, and itself up to date with Windows Update. Of course it reboots after Patch Tuesdays...


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