Ship position receiving and sharing

General questions on scanning from 30 to 3000Mhz. Not sure what you can receive in your area? Here's the place to ask!

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robbage
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Re: Ship position receiving and sharing

Post by robbage » Tue Sep 15, 2009 8:42 pm

Did all that and had AISMon monitoring it as well :)
Rob
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Re: Ship position receiving and sharing

Post by Bonez » Wed Sep 16, 2009 9:50 am

Someone in or near Fremantle would be the best. To the OP, try getting in touch with VK6DN - Don.
He lives in Fremantle as far as I know and he also runs IRLP node 6200 on repeater VK6RFM. He may be your man, if he is interested in the project he could possibly co-host it.

Cheers
Blake VK6FBNZ

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Re: Ship position receiving and sharing

Post by vk6hgr » Wed Sep 16, 2009 11:34 am

Blinky wrote:
VK2GEL wrote:Yes it's only a click and you need to have the squelch off at least at first. Make sure you have FM selected.
and not be scanning between the 2 frequencies as that would probably miss the burst of data.
And it's 9600 baud data, so you need to use the discriminator output on the radio :)
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Re: Ship position receiving and sharing

Post by VK2GEL » Wed Sep 16, 2009 11:42 am

Thanks Gavin, you can hear the clicks through the normal audio output, but to decode the data you will need a rig with a discriminator output. It's easy to modify most scanners http://www.discriminator.nl/index-en.html or use a rig with a data out pin, usually one of the accessory socket pins.

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Icom IC-208H 2m/70cm Ham TRX and wide band RX mobile
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Icom IC-V85 2m VHF Ham TRX handheld
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Re: Ship position receiving and sharing

Post by robbage » Wed Sep 16, 2009 4:18 pm

If you're using a ham 2m rig with a standard packet connector then you can use the high speed signal for 9600. It's as good as a discriminator signal (and probably is)
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Re: Ship position receiving and sharing

Post by Blinky » Wed Sep 16, 2009 8:08 pm

Well yesterday evening I saw the most activity I have seen in my short look at AIS. Might give it another go sometime but it's low on the priorities list. :D

Image
Image

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Re: Ship position receiving and sharing

Post by VK2GEL » Thu Nov 05, 2009 4:09 pm

Looks like someone near Esperance is sharing:

http://www.marinetraffic.com/ais/defaul ... level1=140

and I have set up near Dampier:

http://aprs.fi/?lat=-19.8&lng=117.5&mt= ... range=3600

Still looking for a sharer in Perth/Fremantle and Exmouth, Ningaloo, Coral Bay or North Plantations please. It's easy:

http://www.marinetraffic.com/ais/addyou ... level1=150

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Re: Ship position receiving and sharing

Post by Gregg » Sun Mar 21, 2010 7:05 pm

for ship locations worldwide try this sithttp:

www.marinetraffic.com/ais

Gregg

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Re: Ship position receiving and sharing

Post by sbarnes » Sun Jun 12, 2011 12:34 pm

Gregg wrote:for ship locations worldwide try this sithttp:

http://www.marinetraffic.com/ais

Gregg
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Re: Ship position receiving and sharing

Post by Blinky » Sun Sep 25, 2011 8:59 pm

Isn't it always the way. I have had a visitor from Karratha this weekend so I went to show the AIS display on aprs.fi of the shipping off the NW coast. It's alway worked before but today I notice no AIS traffic showing for the NW. It's been a while since I last looked so don't know how long it has not been working.

So if you did not know before, then now you do.
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robbage
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Posts: 3081
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Amateur callsign: VK6UFO_VK6RN
Scanners and Receivers:  
Scanners/receivers
Diamond Welz WS1000 wideband handheld
Radioshack Pro 28 handheld
Uniden UBC72XLT handheld
Uniden UBC73XLT handheld
Uniden UBC330CRS desktop

Two-way
Yaesu VX-3R 2m/70cm Ham TRX and wideband RX handheld
Yaesu FT-1802M 2m Ham TRX mobile x 2
Yaesu FT-7800R 2m/70cm Ham TRX and wide band RX mobile
Icom IC-208H 2m/70cm Ham TRX and wide band RX mobile
Icom IC-706MKIIG all-band all-mode Ham TRX mobile
Icom IC-V85 2m VHF Ham TRX handheld
Wouxun KG-UVD1P VHF/UHF wideband Ham TRX handheld
Wouxun KG-679P VHF wideband Ham TRX handheld
Wouxun KG-713 UHF wideband Ham TRX handheld
Location: Just on the border of your waking mind

Re: Ship position receiving and sharing

Post by robbage » Thu Feb 16, 2012 6:38 pm

I'm decoding now using AISMon. I'm about 750m from Swanbourne Beach at work. The audio can be heard but the burst is a lot shorter than I expected.
Even with a good quality receiver using the 9600 port I'm getting a 33% success rate according to the AISMon display. The sound device is on-board so that probably doesn't help. I'll give it a go with a proper sound card some time. Decoding the AISMon serial port with VB6 is going to suck.
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