User's Manual

CSI-Wireless LoCate-001 Users Manual
Revision 1.0 Page 11 6/11/2001
3 Performance Specifications
3.1 Cellular Transceiver
Parameter Specification Units
Frequency Range (Tx) 824.010 – 848.970 MHz
Frequency Range (Rx) 869.010 – 893.970 MHz
Channel Spacing 30 KHz
Deviation
± 12
KHz Max.
Number of Channels 832
Antenna Impedance 50 Ohms
Receiver Sensitivity -116 dBm typical
Transmitter Power Output 0.6 Watts nominal
Peak Deviation +/- 8 KHz
Frequency Stability +/- 2.5 ppm maximum
Carrier Switching Time 2 ms
Channel Switching Time 40 ms maximum
Table 6– Cellular Transceiver Performance Characteristics
3.2 GPS Receiver
Parameter Specification
Receiver L1, C/A code
Channels 12
Max Solution Update rate 1/second
Satellite Reacquisition Time 100 ms
Snap Start < 2 seconds
Hot Start < 8 seconds
Warm Start < 38 seconds
Cold Start < 45 seconds
Minimum Signal Tracked -175 dBW
Maximum Velocity < 1,000 knots
Consumption 150 mA
Voltage 3.15 to 5.5 VDC
Protocols NMEA v2.2, SiRF Binary
Position Accuracy 100 meter 2d RMS
SA On 10 meter 2d RMS
Table 7 – GPS Receiver Specifications