Since the first GPS satellite was launched by the
Department of Defense in 1978, the radio navigation system has grown to 24 operational
satellites in six circular orbits 20,200 km (10,900 nm) above the earth.
GPS operates on two frequencies defined as L1, 1575.42 and L2, 1227.6 MHz. GPS antennas are typically available in active or passive type. Active antennas have the amplifier built into the antenna; passive antennas rely on the receiver to provide the amplification.
|VSWR:||2:1 Typical@1575.42 MHz|
|Operating Temperature:||-40� to 85� C|
|Polarization:||Right Hand Circular|
|Antenna Description:||Active Patch Antenna|
|Elevation Coverage:||0� - 90�|
|Operating Voltage:||5.0 Vdc +/- .20 Vdc|
|LNA Gain (GPS Band):||27 dB typical@ 20mA max|
|Cellular Filtering:||-24 dB|
|Antenna Height:||GPSM = 5/8�, GPSU = 9/16�|
|Operating Frequency:||1575.42 MHz|
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