Raymarine RAY91, Installation And Operation Instruction Manual

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Frequency range 156.050 MHz to 163.275 MHz / 155.500 MHz to 161.425
MHz (Private channels)
Sensitivity Better than 1 microvolt EMF @ 20dB SINAD
Squelch sensitivity Less than -2 dBµ EMF
Hum and noise Better than -40 dB
Audio distortion
Less than 10%
Receiver sensitivity • Distance — 119dBm (0.25uV) @ 12dB SINAD (typical)
• Local — 110dBm (0.7uV) @ 12dB SINAD (typical)
Adjacent channel selectivity More than 70 dB
Spurious response rejection More than 70 dB
Inter modulation rejection More than 68 dB
GNSS (GPS)
Channels 72
Cold start 29 seconds
Receiver IC Sensitivity • Tracking and navigation = -167 dBm
• Reacquisition = -160 dBm
• Cold start = -146 dBm
• Hot start = -156 dBm
GNSS compatibility • GPS
• GLONASS
• Beidou
SBAS compatibility • QZSS
• WAAS
• EGNOS
• MSAS
• GAGAN
Special features Active Jamming and Interference Reduction
Operating frequency • GPS L1 C/A
• GLONASS L10F
• Beidou B1
Signal Acquisition Automatic
Almanac Update Automatic
Geodetic Datum WGS-84 (alternatives available through Raymarine MFD)
Refresh Rate 20 Hz (20 times per second Concurrent GNSS)
Antenna • External — An external passive antenna is required
Horizontal Position Accuracy • Autonomous = 2.5m (8.2 ft)
• SBAS = 2m (6.56 ft)
AIS (Ray91 only)
Class type Receiver only
Technical specification
137