I have an Icom
500 series fixed mount VHF radio
mounted at the NAV station. I have it wired to my 12 year old magellan GPS chartplotter
to get position data but that doesn't work very well. Sometimes the radio
displays question marks instead of the actual postiion (it does this intermittently, showing position for a second and then the question marks for a second) and recently it doesn't display position at all, perhaps a wire got loose. I'd much prefer to buy an additional GPS
that I could mount right next to the Icom
radio. Then I'd have a backup and an additional indicator of position.
Is there a cheap
GPS that I can buy and install behind the overhead panel at the nav station without going through the trouble of installing and wiring
another GPS antenna
? The marine GPS receivers
seem quite expensive. Instead I was thinking receivers sold for cars or computers
would be cheaper. For example, Amazon is advertising a GlobalSat BU-353 USB receiver for $37 that one reviewer claimed could receive a signal through the deck
. But this doesn't have the NMEA
output I assume I'd need for the ICOM. Any suggestions?