Simrad RC25 - RC37 Rate Compass; RFC35 N NMEA Compass

Instruction Manual
20220653 / Rev. C 39
7.4 RC37 Rate Compass
Dimensions:.................................................................................................See Figure 7-1
Weight: ....................................................................................................... 0,9 kg (2,0 lbs)
Supply:...................................................................................................10-29VDC, 1 watt
Heading output: .......................................................................................Serial and analog
Output format: .........................................................NMEA0183 10x/sec. and sine/cosine
NMEA data:.............................................................................$IIHDG,x.x,m*hh<cr><lf>
x.x=heading, hh=checksum
Analog data:...............................................................Sine/cosine ±2V, 2.5VDC reference
Accuracy:..................................................................<1.25 degrees rms (after calibration)
Repeatability:........................................................................................... <0.2 degrees rms
Calibration:.........................................................................................................Automatic
Roll/Pitch:....................................................................................................... ± 35 degrees
Cable supplied:.....................................................15 m (49 ft) TP shielded with open end
Temperature range:
Operation:....................................................................0 to +55 °C (+32 to + 130°F)
Storage: ....................................................................–30 to +70 °C (–22 to +158°F)
Environmental Protection:...........................................................................................IP56
Mounting: ............................................................................................... Deck or bulkhead
Material: ............................................................................................................Black ABS
7.5 RFC35N NMEA Compass
Dimensions:.................................................................................................See Figure 7-1
Supply:...................................................................................................10-29VDC, 1 watt
Heading output: ......................................................................................................... Serial
Output format: ..........................................Serial, RobnetTM bus for Simrad autopilots or
NMEA 0183 10x/sec.
NMEA heading:..................................................................... $IIHDM,x.x,M*hh<cr><lf>
x.x=heading, hh=checksum
NMEA status: * ................................................. $PSTOK,R<cr><lf>Calibration running
$PSTOK,C<cr><lf>Calibration terminated, or not
running (Also presented before calibration is done).
Standard configuration: ................................................................................NMEA output
Optional analogue output: ......................................................Sine/cosine by plug-in PCB
* also applies for RFC35R and RFC35NS when connected for NMEA output.