cheap external gps aerial

[Birdseye]

Having flogged mine I have now realised ( numptie!) that I need an NMEA 0183 position feed at 4800 baud for the DSC radio and the feed from my plotter is at AIS speed. Where can I get an old style gps mucho cheap.

 

[laika]

Having flogged mine I have now realised ( numptie!) that I need an NMEA 0183 position feed at 4800 baud for the DSC radio and the feed from my plotter is at AIS speed. Where can I get an old style gps mucho cheap.

Globalsat BU 355 from ebay with the connector cut off and powered from a cheap ebay 12v to 5v adapter?

EDIT: example cost: Just over 30 quid delivered for the the GPS, under a fiver for the power supply

I have confirmed that this works with an icom 603 (although my power supply was actually a butchered phone charger) but I've yet to permanently rig it up as I'm still considering a few alternative solutions (the rest being slightly more expensive and unnecessarily complicated).

 

[Birdseye]

whats the wiring on them? ie which wires are power, which signal.

 

[laika]

whats the wiring on them? ie which wires are power, which signal.

hmm (pulls tangle of wires out of the scary and dangerous "project locker" and examines them). Err...I *think* red is power +ve, black ground, green tx and probably white rx, although I haven't got white connected to anything. It's single ended but worked ok with the diff input to the icom. I'll see if I can find anything online...

 

[laika]

Here we go. This agrees with what I thought:
http://usglobalsat.com/forum/index.php?topic=3640.0

Now that I have a raspberry pi v2 which is a little less flaky than than my first gen one I have a slightly more ambitions plan involving a gps module attached to that but the gps breakout board alone is as much as the BU 355 so the alternate idea wins on neither simplicity nor power not cost grounds.