[Blindtlk] GPS RECEIVER

[humberto]

Hello,

Does anyone know where I can get a GPS receiver for my 
BrailleNote mPower BT 18-cell braille display running Keysoft 8.0 
built 21 and Sendero GPS Version 2010.3 trial version?
How much does one cost? How many kinds of GPS receivers are 
there, and what is the main difference between them? What is the 
cheapest way to find a receiver?
Comments are welcome.

regards,