Sonar Head Unit
2-3
2.3
Sonar Head Unit
2.3.1 General
Electronics boards:
Modular
2.3.2 Transducers
Type:
Proprietary line array
Vertical beam angle:
40°
Depth limit:
200 m
2.3.3 Transmitter
Type:
CW and chirp
Pulse width:
50 µs, 2 ms, 4 ms, 8 ms, 16 ms, and chirp
2.3.4 Receiver
Type:
High gain, tuned preamplifier with TVG
Noise figure:
1 dB nominal
TVG range:
80 dB
2.3.5 A/D Converter
Type:
Pipeline
Resolution:
14 bits
Quantization:
Linear
Sample rate:
Proprietary
2.3.6 Multiplexer
Modulation format:
Pulse code modulation (PCM)
Multiplexing format:
Time division multiplexing (TDM)
Number of channels:
32
Data rate:
29.12 Mbaud
Data format:
NRZ
Bit error rate:
Better than 1x10
-8
(before correction)
Summary of Contents for HydroChart 5000
Page 7: ...vii A 6 Cable Pinouts A 10 A 7 NMEA 0183 Formats and Information A 10 APPENDIX B Drawings B 1...
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Page 77: ...NMEA 0183 Formats and Information A 11...
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