February 5, 2007 03:45
If I get the above AIS unit, will my G4 iBook be powerful enough? ?? ??? ????
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Quote:If I get the above AIS unit, will my G4 iBook be powerful enough?Yes, but make sure you have OS X 10.4 and you have the maximum memory allowed by that model.
GPSNavX Wrote:Yes, I have the maximum amount of RAM installed. I suppose I will need to get another serial>USB converter as well.Quote:If I get the above AIS unit, will my G4 iBook be powerful enough?Yes, but make sure you have OS X 10.4 and you have the maximum memory allowed by that model.
GPSNavX Wrote:A couple ways to interface AIS to a Mac.I already have the Keyspan single one for the GPS. Is there a double or is they 4-port one the next step?
1) A miniplex lite..
http://www.shipmodul.com/en/miniplex-lite.html
2) A Keyspan Adapter..
http://www.keyspan.com/products/usb/usa19hs/
http://www.keyspan.com/products/usb/usa4...epage.spml
Make sure the proper driver is installed and the 38,400 rate is selected in the AIS panel settings drawer.
GPSNavX Wrote:Yes you can daisy chain a GPS to the NASA unit, BUT you will only get the RMC message through meaning all other NMEA messages from the GPS are filtered out. So no sateliite info, no active route or waypoint info. Not recommended. If you wish to daisy chain I would look at the SR-161 AIS receiver instead. I believe its a better unit and lower cost.
GPSNavX Wrote:Yes using a Keyspan with more ports is one option, but I recommend a Multiplexer..
http://www.shipmodul.com/en/miniplex-lite.html
The SR-161 AIS receiver does not filter the GPS sentences, has LED status lights and is cheaper.
cyberhusky Wrote:Check this page for more infos:
http://smartradio.diytrade.com/sdp/96914...74856.html
I bought mine from Stentec, Netherlands with a portable AIS antenna (19 €), so I can use it on charter sailing boats too :-)
http://stentec.com/software/frame_i.html
Click on the hadrware link GPS hardware
http://www.mijnwinkel.nl/shop4235/productlist4/?
look for SR161
I think it's avaible in UK too.
rirvine Wrote:I have just successfully completed an AIS installation using:
- MAC G4 laptop with 512MB
- macENC software
- SR-161 AIS
- Smart Radio VHF Antenna Splitter
<both can be seen on http://www.milltechmarine.com/products.htm>
- Keyspan RS-232 to USB converter
To remove the need for an additional Keyspan box, I ran the NMEA data from my other instruments (GPS etc) at 4800 baud into the SR-161 AIS box which does an exact pass through, combines the NMEA data with the AIS data, and transmits it all at 38400 baud.
The most difficult part was building the cable for a AIS, NMEA, Keyspan box connection.
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