Furuno 841 MARK-2 - Manual (Page 6)

v
FOREWORD ................................ v
SPECIFICATIONS ..................... vii
EQUIPMENT LIST ...................... ix
CONFIGRATION ......................... xi
1. PRINCIPLE OF
OPERATION............................. 1
1.1 What is Radar? ................................. 1
1.2 How Ships Determined Position
Before Radar ..................................... 1
1.3 How Radar Determines Range ......... 1
1.4 How Radar Determines Bearing ....... 1
1.5 Radar Wave Speed and Antenna
Rotation Speed .................................. 1
1.6 The Radar Display ............................ 1
2. OPERATION
2.1 Control Description .......................... 3
2.2 Display Indications and Markers ...... 4
2.3 Turning the Radar On and Off .......... 4
2.4 Transmitting ...................................... 5
2.5 Selecting the Range .......................... 5
2.6 Adjusting LCD Backlighting and
Display Tone ..................................... 5
2.7 Adjusting Control Panel Brilliance ... 5
2.8 Adjusting GAIN, STC, A/C RAIN
and FTC ............................................ 6
2.9 Tuning the Receiver .......................... 7
2.10 Measuring the Range ........................ 8
2.11 Measuring the Bearing...................... 8
2.12 Menu Operation ................................ 9
2.13 Selecting the Display Mode .............11
2.14 The Window Display ...................... 12
2.15 Selecting the Presentation Mode .... 12
2.16 Guard Alarm ................................... 13
2.17 Suppressing Radar Interference ...... 14
2.18 Suppressing Noise Interference ...... 15
2.19 Selecting Pulselength ...................... 15
2.20 Off Centering the Display ............... 15
2.21 Echo Trails ...................................... 16
2.22 The Navigation Data Display ......... 16
2.23 Echo Stretch .................................... 17
2.24 Selecting Unit of Measurement
for Range ........................................ 18
2.25 Selecting Bearing Reference .......... 18
2.26 Watchman ....................................... 18
2.27 Erasing the Heading Marker ........... 19
2.28 Deselecting Ranges ......................... 19
2.29 Displaying Navigation During
Stand-by .......................................... 19
2.30 Outputting Cursor Position to
Navigator ........................................ 20
2.31 Displaying Cursor Position, Range
and Bearing to Cursor ..................... 20
2.32 Visual Alarm Indications ................ 20
3. INTERPRETING THE
DISPLAY
3.1 The Radar Wave and Radar Horizon21
3.2 Target Properties and Radar Wave
Reflection ....................................... 21
3.3 Range Resolution ............................ 22
3.4 Bearing Resolution ......................... 22
3.5 False Echoes ................................... 22
3.6 Nautical Chart and Radar Picture ... 24
4. MAINTENANCE &
TROUBLESHOOTING
4.1 Safety Information .......................... 25
4.2 Preventative Maintenance ............... 26
4.3 Replacing the Fuse.......................... 26
4.4 Troubleshooting .............................. 27
4.5 Self Test .......................................... 28
5. INSTALLATION
5.1 Antenna Unit Installation ................ 29
5.2 Display Unit Installation ................. 31
5.3 Installation Check List .................... 35
5.4 Initial Adjustment of Picture........... 36
5.5 Displaying the Installation Menus .. 36
5.6 Entering Initial Settings .................. 37
5.7 Relative Bearing Alignment ........... 37
5.8 Sweep Timing ................................. 37
5.9 Closing the Installation Menus ....... 38
Declaration of Conformity
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