Simrad NX45 Specifications Page 72
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Simrad NX40/45 Installation and Operation Manual72
18-6 Adjusting the quality of the radar
window
Common problems that can degrade the quality of the
radar window include:
sea clutter•
rain clutter•
false echoes (sometimes called ghost echoes) and •
background noise
side lobe patterns (false echoes that appear as an •
arc or a broken arc)
shadows (blind spots)•
multiple echoes off the same object•
incorrect threshold setting•
If the radar is installed at a suitable height and in a
suitable location on your boat, side lobe patterns and
shadows (blind spots) caused by obstructions such as
funnels or masts will be minimized. If you’re having
problems with these, you may need to relocate the radar.
Consult the Installation Guide for your Simrad radar or
talk to your dealer or installer.
Multiple echoes off the same object are most likely
to occur when you are close to a large target and are
usually only a temporary nuisance.
You can adjust the radar to reduce the effects of sea
clutter, rain clutter, and interference from other radars.
You can also change the gain mode setting and the gain
level setting to help reduce false echoes.
To adjust the radar
> Presentation > Adjust Radar >
18-6-1 Changing the gain mode
Use the radar gain mode to specify whether you want
to adjust the radar gain yourself or have it adjusted
automatically.
To change the radar gain mode
> Adjust Radar > Gain Mode
• Manual. Adjust the radar gain yourself to suit your
local conditions and preferences.
• Auto. The radar gain is adjusted automatically.
- NX40/45 1
- NavStation 1
- Contents 3
- Overview1 7
- 1-3 Plug-in cards 8
- Removing the display unit 9
- Replacing the display unit 9
- Basic Operation2 10
- 2-4 Man overboard (MOB) 13
- 2-5 Alarms 13
- 2-7 The main windows 14
- 2-6 Simulate mode 14
- Simulate > Simulate > 14
- > More 15
- Red border 16
- Navigation: Chart3 19
- 3-2 Chart window 21
- 3-2-1 Chart modes 22
- 3-2-2 Latitude and longitude 22
- 3-5 Tracks and tracking 25
- 3-4 Projected course 25
- Video window4 26
- Navigation: Highway window5 27
- Navigation: Waypoints6 28
- Navigation: Routes7 31
- Satellites8 35
- 9-1 Using the unit 36
- 9-2 Interpreting the display 37
- Strength of echoes 37
- Frequency and cone width 38
- Bottom types 38
- When to use Mixed 40
- When to use 50/200 kHz 40
- 50 kHz display 41
- 200 kHz display 41
- Where to nd sh 42
- Fish arches 42
- 9-5 Range 43
- Range > 43
- Zoom range and offset 43
- 9-6 Gain and threshold 43
- The gain window 44
- Threshold 44
- Echosounder10 45
- 10-1-1 Extended history mode 46
- Bottom lock > On or Off 47
- 10-3 Echosounder split window 47
- Setting gain and threshold 48
- Fish recognition 48
- Bottom type 48
- Gauges window11 49
- Data window12 50
- Fuel functions and display13 51
- B - Part ll a tank 53
- Add fuel 53
- C - Removing fuel 53
- Set remaining 53
- Set Remaining menu to 53
- For Example 1 55
- 13-6 Fuel consumption curves 55
- 13-7 Calibration 58
- Fuel > Setup engines 58
- Calibrate and change 58
- Tides window14 59
- User card window15 60
- 16-1 Viewing AIS Vessels 62
- TCPA 15 min 63
- CPA 0.5 nm 63
- Safety msgs (rx) 64
- to turn SmartCraft Off 65
- or > to conrm 66
- to conrm 66
- 17-3-4 Trim indicator 68
- Radar 18 70
- 18-6-1 Changing the gain mode 72
- Adjust Radar > Gain Mode 72
- oating VRM/EBL 76
- from the center to give 77
- Setting up the NX40/4519 80
- 19-1 Setup > System 81
- 19-2 Setup > Chart 82
- If you select a map datum 83
- It should 83
- Set > 84
- General submenu 84
- Land submenu 85
- Other submenu 85
- 19-4 Setup > Radar 87
- Radar > Installation 90
- 19-5 Setup > GPS 91
- 19-6 Setup > Fuel 92
- 19-7 Setup > Track 93
- 19-8 Setup > AIS 94
- 19-11 Setup > Units 96
- 19-12 Setup > Comms 96
- 19-13 Setup > Calibrate 97
- Calibrate 97
- 19-14 Setup > Time 98
- 19-15 Setup > Favorites 99
- 19-16 Setup > Simulate 99
- Simulate 99
- Installation 20 100
- GA B C D E F 101
- Flush Mounting the NX40/45 102
- Bracket Mounting the NX40/45 103
- Installing an antenna 105
- Echosounder to 105
- 20-9 Installation: SmartCraft 106
- 20-10 Installation: Radar 107
- Power cable 108
- Specications21 109
- COMMUNICATIONS 110
- STANDARDS COMPLIANCE 110
- Simrad NX45 111
- Simrad NX40 111
- List of datums 112
- Troubleshooting22 113
- B-3 Fuel consumption problems 114
- Economy 114
- B-4 echosounder shnding 115
- B-5 Radar problems 116
- Navigation data24 118
- Compliance statements25 119
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