GPSMAP 4xxx or 5xxx series chartplotter that is using a GPS 17 HVS, GPS 17x HVS, or GPS 19x HVS antenna not acquiring satellites | Garmin Customer Support
Buy Marine - Garmin GPS 19x HVS Marine Antenna
Garmin GPS 19x Antenna NMEA 2000
Garmin GPS-19X NMEA2000 GPS Antenna w/3 Mounts 90 Day Warr (TESTED Good) - Max Marine Electronics
Garmin GPS-19X NMEA2000 GPS Antenna -TESTED Good- W /9.7 M Drop Cable - Max Marine Electronics