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C146 Series GPS Antenna

The quadrature feed network, beyond offering excellent circular polarization and minimum axial ratio, provides low phase ripple, excellent pattern symmetry and a stable phase center.

The C146 Series GPS Antennas are available in many different models, to suit airborne (both subsonic and supersonic), marine and land applications. These antennas are low profile (1.5 inches high) and are easily installed (5 inches or less diameter mounting base). An optional choke ring, the U305-1, is available and is suitable for direct interface with select models within the C146 Series. Use of the U305-1 choke ring mitigates the effects of multipath interference, which would otherwise diminish system accuracy.

C146 Series Antenna Specifications

For further details and specifications, contact the factory at

C146 Series Antenna Spec Sheet
Frequency range
1560-1590 MHz
1212-1242 MHz
VSWR 1.5:1
Gain 5 dBic at zenith
-4 dBic at 5° elevation above the horizon
Impedance 50 ohms
Polarization RHCP
Radiation patterns Omnidirectional – azimuth
Hemispherical – vertical
Power handling Receive only
Connector C146-10-X – SMA female
C146-11-X – TNC female
Weight 0.5 lbs (0.23 kg)
Finish Gray (-1); white (-2); black (-3)

Contact the Antenna Team


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