Recommend waterproof Bluetooth GPS antenna?

[tudorsailor]

Sailed on new to me/pre-owned yacht with Raytheon RN300 GPS. Acquring satellites always very slow and then one day no fix at all. What I need is a backup! I have a PC on board so one option is to get a bluetooth dongle and link to an external bluetooth aerial. This would avoid wires etc. Is a good idea? If yes, can anyone recommend a reliable salt water resistant aerial?

Thanks

TudorDoc

PS If anyone knows how to improve the RN300 GPS that would be a plus!

 

[Malcb]

A USB GPS will work quite satisfactorily down below, it manages to see the satellites through fibreglass.

That's what I use a as my backup.

 

[davel]

I use this one.
It's fitted below decks and has no problem acquiring or maintaining signal. Waterproof, cheap and comes with a cigar lighter for power (although I've wired mine in permanently).
Recommended.

Edit note. Oops, just noticed you wanted a bluetooth model and mine isn't ! Still you'll find bluetooth models available if you follow the link.

 

[Robin2]

Put it in a ziplock plastic bag ?

 

[Jonny_H]

We have a £30 affair from ebay and put it in a small tupperwear box!