Doppler Log Junlu DS-90R

  Doppler lag DS-90R

The DS-90R log is a modern device designed to measure and monitor the speed of a vessel relative to water or the seabed.
This instrument is based on the principles of the Doppler effect and rotating housing to obtain accurate and stable readings.
DS-90R is designed for sea and river navigation, and can also be used on ships of various types, from merchant ships to yachts and fishing vessels.
The main task of the device is to provide accurate and reliable data on relative speed, which helps captains and operators of navigation systems to make informed decisions and improve navigation safety.

Main functions

Measuring the speed and distance traveled of a vessel based on the Doppler effect

The ability to connect additional repeaters

Input ports for connecting GPS and gyrocompass

The use of clinker allows the sensor to be replaced without docking

Technical specifications

Converter	60 mm, cable length 20 m
Sensor module	230 x 215 x 83 mm, weight 3 kg
Signal processing distribution module	348 x 346 x 107 mm, weight 8 kg
Power supply	AC 110V/220V (±10%)
Converter module	328 x 384 x 107 mm, weight 7 kg
Operating temperature	-10°C~+50°C
LCD display operating temperature	0°C~+70°C
Humidity	10~90% relative humidity
Display	7” color LCD display
Adjustable brightness	The brightness of the LCD background can be adjusted to 8 levels
Additionally	repeater
Data output	NMEA0183 ( VBW, VLW)
Data entry	NMEA0183 ( RMC, VTG , GLL, HDT)
Speed accuracy	0.2 knots or ±2%, whichever is greater
Transmission/reception frequency	1 MHz
Measuring range	40 knots