Furuno 841 MARK-2 manual Erasing the Heading Marker, Deselecting Ranges, Canceling watchman

Canceling watchman

Press any key while the radar is transmit- ting. (Pressing a key during stand-by causes the radar to go to warm-up condition.)

2.27Erasing the Heading Marker

The heading marker continuously appears on the display and shows your vessel’s head- ing. When this mark obscures a target echo, you can temporarily erase it by pressing and holding down the [HM OFF] key. Release the key to redisplay the marker.

2.28 Deselecting Ranges

This radar has 15 ranges, some which you may not require. You can deselect up to eight ranges as follows.

1)Press the [MENU] key.

2)Select Mode & Function and press the [ENT] key.

3)Select Range and press the [ENT] key. Active ranges appear in reverse video.

4)Press t or s to select range to disable (or enable). Current selection is under- lined.

5)Press [ENT].

6)Repeat steps 4 and 5 to disable (or en- able) other ranges.

7)When finished, press the [MENU] key.

2.29Displaying Navigation Data During Stand-by

Various navigation data can be displayed during stand-by. A barometer is built in this radar; atmospheric pressure appears, in graph form, on the navigation data display during stand-by. If your navigation aid can output data in NMEA 0183 data format, your

vessel’s position in latitude and longitude, the range and bearing to waypoint, speed, course, date, time and cross track error may be input to this radar, and be seen in the bot- tom text area during stand-by. Further, with video sounder input, depth may be dis- played, both digitally and in graph form.

CAUTION

The barometer and depth displays are intended as reference. Any data displayed by them should be used with extreme caution.

Procedure

1)Press the [MENU] key.

2)Select the Nav Data menu and press the [ENT] key.

3)Select STBY Display to NAV and press the [ENT] key.

4)Press the [MENU] key.

Note 1: The depth display scale changes au- tomatically with depth and the maximum depth is 1,000 meters.

Note 2: The barometer display is updated hourly, thus the data shown may not be the latest.

ST–BY

(Mbar/hPa)

2 (MIN) 1

0

1020

1010

500

1000

990

1000

-12 -9 -6 -3

(HOUR)

(m)

BAROMETER

DEPTH

DATE

TIME

TEMP

CRS

08.22

15:19

30.0°C

0.0°M

DEPTH

XTE

SPD

827 m

0.6NM R 30.0KT

WAYPOINT

POSI

L/L

12.0NM

114.8°R

65°43.98N

165°43.96E

XTE

XTE

L 1

0.5

0 (NM) 0.5

1 R

Figure 2-22 Navigation data display

during stand-by

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