By Russ, on September 27th, 2006
I used the NASA AIS receiver. It has worked fine and if you look at other posts here you can see some very congested screen shots of AIS data in the English Channel.
I also find that I can ’see’ AIS transmissions of boats up to 12nm out at sea from inside the marina and inside the port of Newhaven, England.
The NASA device does look a bit cheap and one big complaint is the useless manual and the lack of any form of lights on the device to tell you it has power or is receiving or
…….Click Connecting AIS – NASA AIS receiver …. to continue reading
By Russ, on September 27th, 2006
This is my new system..
- GPS Raystar 125 (2nd GPS)
- Chart plotter – C120
- AIS (outputting at 38400 to Brookhouse and then to the C120)
- Raymarine 18″ 2Kw Radar
Connecting to a laptop
- ACER Aspire 5022WLMi
- E85001 – NMEA0183/Seatalk I/f box to output NMEA0183 to serial and then via a serial to USB adaptor into the laptop
- Brookhouse Multiplexer to I/f AIS to C120 at 38400 and to output on its built in USB cable straight into the laptop
This means that two independent programs can operate on the laptop both getting data in from the ships instruments
All of this now works
…….Click Electronic Navigation – New System …. to continue reading
By Russ, on September 27th, 2006
This is a shot of the AIS display as I crossed the English Channel (Sep 2006). It was quite busy as you can see…all the blue triangles are container vessels that were going considerably faster than my SOG which as you can see from the display at the top was around 6Kts at that time…
Here you can see that I was less than 1nm away from the approaching vessel on the starboard bow and the vector drawn out in front of the vessel represents 12 minutes sailing at the vessels current SOG – in fact the pop up says that
…….Click AIS Display …. to continue reading
By Russ, on September 24th, 2006
Its a real nuisance that the Raymarine C120 has only one NMEA port and that once you have set this to receive AIS data at 38,400 bd it cannot then talk/listen to NMEA 0183 data at 4,800 bd.
Having struggled with various configurations I eventually discovered the excellent Brookhouse multiplexer from New Zealand and got one shipped over to England. This is a great bit of kit and after a few false starts I have managed to connect it up very successfully to the Raymarine E85001 interface box – that I had already bought – but now
…….Click Connecting AIS – Brookhouse …. to continue reading
By Russ, on September 24th, 2006
I have upgraded the electronics on Enterprise and I now have two almost separate navigation systems (backup before resorting to charts !)
Firstly there is the ‘old’ system – now 11 years old..
- Raymarine GPS
- Autohelm ST50 instruments (log, wind, depth, multi)
- Phillips navigator Mk8
- Autohelm autopilot 3000 (wheel based)
- All connected on a Seatalk bus
The Philips navigator is really good. Its visible under the spray hood, and is always pretty much in agreement with the new system (all Raymarine based) that I run in parallel. Since the cockpit is small I had no room for a new Raymarine screen on
…….Click Electronic navigation – Old System …. to continue reading
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