9.Receiver front end MIC (Michoeave IC)

10.Bandwidth 7 MHz

11.Duplexer

Circulator with diode limiter

Display Unit

1.Indication system PPI raster scan

2.Display

8-inch diagonal LCD, STN semi- transparent, yellow mode

3.Range scales (nm)

Range, Ring Interval: 0.125(0.0625), 0.25(0.125), 0.5(0.125), 0.75(0.25), 1(0.25), 1.5(0.5), 2(0.5), 3(1), 4(1), 6(2), 8(2), 12(3), 16(4), 24(6), 36 (6)

4.Bearing resolution 6.2˚

5.Bearing accuracy Better than 1˚

6.Range discrimination Better than 25 m

7.Range ring accuracy

& discrimination

0.9% or range in use or 8 m, whichever is larger

8.Minimum range Better than 37 m

9.Markers

Heading marker, Bearing scale, Range ring, VRM, EBL, Waypoint (option), Tuning indicator, Alarm zone, Cursor

10.Alphanumeric indication Standard: Electronic Bearing Line (EBL), Echo Stretch (ES), Rain Clutter Rejection (FTC), Alarm (G), Interference Rejection (IR), Stand-by(ST-BY), Echo Trail Time (TRAIL), Variable Range Marker (VRM), Range, Range Ring Interval, Range and Bearing to Cursor (+), Off Center (OFF CENTER), Watchman (WATCHMAN)

With navigation input (option): Course (CRS), Latitude and longitude, Speed (SPD), Range and bearing to waypoint (WP), Cross Track Error (XTE), Date and time, Water depth, Water temperature. (This radar has only two data input ports. To receive data from more than two equipment install an

mixing device.)

 

11. Vibration

 

Vibration freq.

Total amplitude

5 to 12.5 Hz

±1.6 mm

12 to 25 Hz

±0.35 mm

25 to 50 Hz

±0.10 mm

12.Ambiont temperature

Antenna unit: –20˚C to +70˚C

Display unit: 0˚C to +60˚C

Due to the inherent nature of the LCD its contrast may be affected under ambient temperature below 0˚C (32˚F) or above 50˚C (122˚F).

13.Humidity

Relative humidity 95% or less at +40˚C

14.Waterproofing

Display unit: IEC Pub no. 529 IPX5

Antenna unit: IEC Pub no. 945 class X

15.Power supply & power consumption

12 V or 24V(10.2 V to 31.2 V DC),

40 W approx.

16.Protection features

Protection against reverse polarity, overvoltage, overcurrent, and internal fault

Unit

Standard

Steering

 

compass

compass

 

 

 

Display

0.7 m

0.5 m

 

 

 

Antenna

1.4 m

1.1 m

 

 

 

v

Page 8
Image 8
Furuno 841, 821 manual Receiver front end MIC Michoeave IC Bandwidth 7 MHz Duplexer, Ambiont temperature