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Rev. D Appendix
AppendixAppendix
Appendix Page 133
Signal Processing
Signal ProcessingSignal Processing
Signal Processing
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Number of Channels: 2
•
Frequency Range: 283.5–325.0 kHz
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Tuning Resolution: < 2 Hz
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Minimum Signal Strength: 1µV/m @ 100bps
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Dynamic Range > 100 dB
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Adjacent Channel Rejection: > 50 dB at 1 kHz
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Acquisition Time: 5 seconds, manual command
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15 seconds, automatic warm start
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15 minutes, automatic cold start *
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Noise Blanker: Predictive variable length
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Signal Detection: Acquisition via FLL (frequency-locked loop);
tracking via PLL (phase-locked loop)
Data Processing
Data ProcessingData Processing
Data Processing
Demodulation: MSK (Minimum Shift Keying)
Data Decoding: Parallel-matched digital filters
MSK Bit Rates: 25, 50, 100, 200 (automatically selected)
Power Requirements
Power RequirementsPower Requirements
Power Requirements
Power Consumption: 2 Watts
Data Ports
Data PortsData Ports
Data Ports
DGPS Correction Output Port:
RTCM SC-104 Version 2.0—6 of 8
RS-232-C
9600 or 4800 baud
Environmental
EnvironmentalEnvironmental
Environmental
Whip Antenna:
ACU: Height: 11 inches
Diameter: 2.6 inches
Weight: 1.5 pounds
Antenna: 48-inch fiberglass whip (not supplied)
(Shakespeare 4' #173 loaded, or Radio Shack
#21-934)
Internal Beacon
Receiver
(optional)