Frequency VHF-AIS 156-163 Mhz
              GPS 1575.42 Mhz
Antenna type VHF-AIS side feed dipole collinear
                  GPS Quadrifilar helix
Impedance 50 Ohm
SWR VHF-AIS see diagram
       GPS 1:1
Max power VHF-AIS 25 W
               GPS reception
Gain VHF-AIS 3 dbi
       GPS +25dbic (amplifier)
Polarization VHF-AIS vertical
                GPS RHCP
Power GPS ANT 2,8 - 3,3 V DC feed through the antenna connector 15 mA
               GPS 3,3 - 6 V DC feed through the GPS connector 20 mA control supple led
Noise figure GPS 1,2 db
Input 3rd intercept point GPS - 10 dbm