GPS Helix Antenna
Specifications
Frequency
 1575.42 MHz ±5MHz
Gain
 0 dBic
Polarization
 RHCP
Beamwidth
 140 deg
Axial Ratio
 0.2 dB (max)
VSWR
 1.1 (typical)
Impedance
 50 Ohms
Dimensions
 Diameter=1/2-in (12.8mm)
Height = 1.7-in  (43mm)
Application:

This GPS helix or quadrifilar antenna is part of a mast AIS VHF/GPS antenna: an antenna for
Automatic Identification System  transponders. The AIS antenna is suitable for all kinds of heavy
vehicles and marine vessels.