Help your GPS to get stronger signal and Picks up your position rapidly GNSS L1/L5 Band Active Antenna - Standard Precision Gps Antenna Ship GPS Active Marine Navigation Antenna Timing A... – Vicedeal Strong Signal GPS Antenna Faster GPS signals capture, DC voltage: 3 ~ 5V, GPS frequency: 1575.42 ± 5MHz, Beidou frequency: 1561 ± 5MHz. Compatible with Boat Ship Marine GPS Navigation... No power adapter needed: powered by the head unit and its own car charger. G99F Marine Boat Vehicle Navigation Antenna GPS Mu... – Grandado Compatible with Boat Ship Marine GPS Navigation System Unit Modem Receiver Transducer Explorer Fishfinder Sounder,Help your GPS to get stronger signal and Picks up your position rapidly., Center Frequency: 1575., 42MHz; Gain: ≥28DB