27
Northstar Explorer 443s/443sp Installation and Operation Manual
Depth range
· 2 ft (0.6 m) to 600 ft (180 m).
Display type
· FSTN greyscale.
· Screen resolution 160 high x 120 wide
(pixels).
· White multi-level back lighting.
Supply voltage
· 10 to 16.5 V DC.
Supply current
· 280 mA min - no backlighting.
· 400 mA max - full backlighting.
Operating temperature
· 32 to 122°F (0 to 50°C).
Transom transducer cable length
· 26 ft (8 m) - Explorer 443sp
· 33 ft (10 m) - Explorer 443s
Typical depth acquisition time from startup
· 2 seconds at 100 feet (30 m).
Transmit frequency
· 200 kHz.
Transmit power
· 150 Watts RMS @ 13.8 V DC.
Transmit rate
· Max 20 soundings/second
Receiver sensitivity
· Better than 10 micro volts RMS.
Appendix A - Specifications
Standards Compliance
· EMC: USA FCC Part 15 Class B.
Europe (CE) IEC60945
New Zealand & Australia (C Tick)
CISPR 22
· Environment: IPx6 & IPx7
Temperature measurement range
· 32 to 99.9°F (0 to 37.7°C) Resolution 0.1
units.
Speed range
· 1 to 50 kn (57.5 mph, 96.6 kph).
Speed resolution
· 0.0 to 9.9, 10 to 50.
Communications
· NMEA 0183 (Ver 2.0) 4800 Baud.
NMEA output
NMEA (0183 format) is a standard for interfacing
marine electronic devices. The Northstar
fishfinder can output the following data:
· DBT (Depth Below Transducer).
· DPT (Depth and Keel offset).
· TDK (Depth Northstar - proprietary).
· TKV (Speed Northstar - proprietary).
· VHW (Speed).
· MTW (Water temperature).
· XDR (Battery voltage).
126.0 mm (5”)
27.9 mm
(1.1”)
30.5 mm
(1.2”)
143.5 mm (5.6”)
126.0 mm (5”)
88.5 mm (3.5”)
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