Specifications

13.1 Technical specification —
Ray53
Environmental specification
Operating
temperature
-20ºC (-4ºF) to +60ºC (140ºF)
Storage
temperature
-25ºC (-13ºF) to +70ºC (158ºF)
Relative humidity
95%
Water proofing IPx6 & IPx7
Connections • 1 x NMEA 0183
• 1 x SeaTalkng ® / NMEA 2000
• 1 x Audio (RCA)
• 1 x GNSS (GPS) antenna
(TNC)
Power specification
Nominal supply
voltage
12 V dc (Reverse polarity and
over voltage protection)
Operating voltage
range
9Vdcto16Vdc
Current
consumption
• Lessthan6Aathigh power
(13.6 V)
• Standby: 600 mA
• Receive: 2 A
Transmitter
Channels All available US, International
and Canadian VHF marine
bands
Frequency Range
156.000 MHz to 157.425 MHz
/ 155.500 MHz to 161.425 MHz
(Private channels)
Frequency stability
+/- 1.5 ppm
Channel Spacing 25 kHz
Power Output
•
Low power setting —0.75W
• High power setting — 25 W
Spurious
emissions
Better than –36 dBm at 25 W
(Less than 0.25 µW)
Maximum
deviation
+/- 5 kHz
Antenna
impedance
50 Ohms (typical)
Receiver
Receiver type Double conversion super
heterodyne
Channels All available US, International
and Canadian VHF marine
bands
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
Speakers
Base station
speaker power
output
2.5W(8Ω)
Fistmic speaker
power
1 W (16 Ω)
External speaker
power
5 W (8 Ω)
GNSS (GPS)
Channels 72
Cold start < 2 minutes
Receiver IC
Sensitivity
–167 dBm (Tracking) / –148 dBm
(Acquisition)
GNSS
compatibility
• GPS
• GLONASS
• * Beidou
SBAS
compatibility
• WAAS
• EGNOS
•MSAS
Special features
Active Jamming and Interference
Reduction
Operating
frequency
• GPS L1 C/A
• GLONASS L10F
• Beidou B1
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