Antennas Seek GPS Apps April 2000 Issue Published Date: April 01, 2000
The GPS antennas are electrically shielded LNA PCB assemblies encased in UV stable black radomes. Designed to meet or surpass today's specifications, the antennas are available in a variety of mounting options and configurations. Operating frequency is 1575.42, ±1.023 MHz with input impedance of 50 ohms. The VSWR is 1.5:1 maximum at 1575.42 MHz with a bandwidth to -3 dB of 45 MHz. Polarization is right hand circular with an azimuth coverage of 360° . Elevation coverage is 0° to 90° . Antenna gain is 2 dBic minimum at zenith and -10 dBic minimum at 0° elevation. Axial ratio is 3 dB maximum with noise figure 2.2 dB maximum, 1.5 dB typical. Operating supply voltage is 5, ±0.25 vdc with 50 mVpk-pk ripple maximum. Current consumption is 20 mA maximum at 5 vdc. Dimensions are 3.21" diameter x 1.19" deep.
