Free Garmin GPS 128 Marine Navigator WITHOUT antenna.
Has NEMA 0183 VERSION 2.0 output that can connect to VHF or...
Included:
Mounting BracketPower/data cableCompatible antennas are available from Garmin:
Owner's manual
Quick reference guide
Garmin GA 25 BNC Remote GPS Antenna from Garmin website is only $31.49
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