NorthStar 6000i Bedienungsanleitung

Addendum

to the

Northstar

6000i

Reference Manual

Revision B

This Addendum replaces Chapter 5

of the Reference Manual

and describes new radar functionality,

including the new Northstar 2kW radar

P/N GM6KUMA Rev B

– 25 –

Press Trigger Level repeatedly to

set the signal strength that causes

an alarm: low, medium, high, or off

(no alarm).

The alarm is temporarily turned off while you

are displaying the radar markers menu keys. It

automatically turns back on after a minute

passes with no further adjustments, or when you

press Done.

– 24 –

and two straight lines extending outward from

the vessel as shown in Figure 3.

You can turn each zone on or off, change its

boundaries, and set the echo strength that will

cause an alarm.

Press the following keys to adjust each guard

zone.

Press Guard Zone repeatedly to

select zone 1, 2, or 3 for

adjustment.

Press Visibility to show or hide the

zone selected above. When a zone

is hidden, it doesn’t alarm and its

Edit and Trigger Level keys aren’t

available.

You can set the boundary and size

of each guard zone by moving

Point A and Point B. Press Edit to

select Point A or Point B. Then

press the CURSOR PAD to move the selected

point and create an arc-shaped zone.

As you change Point A or B, the coordinates of

that point are updated in the upper right-hand

corner of the screen.

Point B

Point A

Guard Zone

Figure 3: Guard zone

Guard Zone

Zone 2

– 1 –

How radar works

The word “radar” is an acronym for “Radio

Detecting and Ranging.” A radio transmitter

sends out a very short microwave pulse, and

then a receiver listens for that signal’s echo

when it’s bounced back from a target in its path.

Targets, which may be other boats or ships, navi-

gational markers, flocks of birds, or land masses,

are displayed on the

6000i’s

screen. By knowing

how long it takes for a signal to return, the

distance to a target can be determined. As the

radar antenna scans through a 360-degree rota-

tion, it shows the target’s location relative to

your position. By watching repeated scans of a

target, such as another vessel, you can see how

that target is moving.

Northstar radar models

There are two types of radar units from North-

star. The 4kW, 6kW, 12 kW and 25kW units all

are operated in the same way. The new 2kW

Northstar radar works slightly differently, and

these differences are clearly indicated in this

manual. The major differences are:

•

in the 2kW radar, auto modes do not

continuously adjust themselves

•

ranges of manual settings are different

between the two types of units

•

the 2kW unit does not have a STC curve

adjustment

– 2 –

Turning the radar transmitter on and off

Each time you turn on the Northstar

6000i

, the

radar transmitter must be turned on separately,

as a safety feature.

When you first press the

RADAR

key after

turning the system on, the unit displays:

The Radar TX is off.

Do you want to turn it on?

Press

ENTER

to turn it on, or

CLEAR

to access

the radar adjustment pages without turning the

transmitter on.

You can also turn the transmitter on or off using

the menu keys:

1. Press

RADAR

to display the radar screen.

2. Press

Radar TX

so it indicates

Off

, as

desired.

NOTE:

The radar remains in standby mode

for a minute and a half after power is

applied.

NOTE:

Even though the transmitter has

been turned off, the radar is still in

standby mode and draws power.

– 23 –

•VRM A — to control the size of the VRM circle

at the vessel

•VRM B — to control the size of the VRM circle

at point B

For the floating EBL, select:

•Point C— to move the point at one end of the

EBL

•Point D — to move the point at the other end

of the EBL

•VRM C — to control the size of the VRM circle

at point C

•VRM D — to control the size of the VRM circle

at point D

Shortcut for moving the ﬁxed EBL

On page 1 of the radar screen, you can use the

cursor pad to change the position of the fixed

EBL and read the measurements displayed.

Guard zones

Press the Guard Zone menu key to control this

feature.

You can designate up to three

guard zones that the 6000i

monitors for radar echoes. Any

echoes inside a guard zone and as

strong as or stronger than the

designated trigger level are

displayed in red and cause an

alarm. Each zone is bounded by red lines — an

inner and an outer arc centered on the vessel,

EBL / VRM

Guard Zone

Zone 1

– 22 –

the screen. Again, there’s a variable range marker

at each end of the line.

The following information about the EBLs and

VRMs appears on your screen:

•In the upper right-hand corner, you’ll see:

>The coordinates of Point A, B, C or D (which-

ever point you selected)

>The ETE and ETA to the selected point

•In the bottom right-hand corner, you’ll see

the radius of the VRM(s). These numbers are

color coded blue for the ﬁxed EBL and pink

for the ﬂoating EBL.

•In the bottom left-hand corner, you’ll see the

length of the electronic bearing line(s). These

numbers are also color coded blue for the

ﬁxed EBL and pink for the ﬂoating EBL.

Press the following keys to adjust the electronic

bearing lines.

Press EBL to select either the fixed

or the floating EBL. The selected

EBL can be adjusted with the

following two controls:

Press Visibility to show or hide the

EBL selected above. When an EBL

is hidden, its Edit key is also

unavailable.

Press Edit repeatedly to select what

part of the EBL is controlled by the

cursor pad:

For the fixed EBL, select:

•Point B — to move the point at the far end of

the ﬁxed EBL

– 3 –

Displaying radar

The radar image includes:

•

A north indicator to show the direction of

true or magnetic north.

•

The current radar scale, shown by the

numbers in the upper left corner of the radar

image.

Rng

is the distance from the center to

the largest range ring, and

is the spacing

between the range rings.

•

A dashed white heading line. This line

indicates your heading, not Course-Over-

Ground, and can be used to compare the

radar presentation with the view in front of

the vessel.

•

A gray course predictor line.

For information about rotating and scaling the

radar, see

Changing radar scale and rotation,

starting on page 8.

A special demo mode for simulating radar

echoes based on the chart information is avail-

able. Radar demo mode is activated whenever

the chart demo is turned on.

Note:

It’s important

that you do

not use Demo

Mode when a

radar is inter-

faced to the

Northstar

6000i.

– 4 –

Using the radar’s main menu keys

The radar’s main menu keys allow you to:

•

overlay the radar image on the chart (if the

chart is also displayed)

•

switch control between the radar and chart (if

the chart is also displayed)

•

rotate the radar image

•

access the radar markers

•

access the radar adjustment pages

•

show more navigation information on the

info bar at the bottom of the screen

Radar screen

– 21 –

The fixed EBL is a blue line from your present

position (Point “A”) to Point “B.” You can move

Point B to a point of interest using the cursor

pad. At the end of the line, a blue circle called a

variable range marker (VRM B) surrounds Point

B. Another VRM circle (called VRM A) surrounds

your vessel’s position.

You can change the size of each VRM to

measure distances from Point A or Point B to any

point of interest on the screen.

The floating EBL is a pink line connecting Point

C and Point D. It’s similar to the fixed EBL,

except that both points can be moved, to allow

measuring distances between any two points on

Point A

Point B

Variable

Range

Marker

Variable

Range

Marker

Electronic Bearing Line

Your Vessel

Figure 1: Fixed EBL

Figure 2: Floating EBL

Point C

Point D

Variable

Range

Marker

Variable

Range

Marker

Electronic Bearing Line

Your Vessel

– 20 –

mode: Auto 1

rain clutter, sea clutter and gain are set to useful

values for each range

interference rejection: Off

trails: Off

expansion: Off

range rings on/off: On

bearings: True/mag

echo colors: The ﬁrst set (green)

sweep: Analog

fade: Off

STC curve: 4(not present on 2kW model)

tune mode: Auto

tune preset: 79 (not on 2kW model)

Using the Radar Markers keys

Press Radar Markers to display

controls for the 6000i’s electronic

bearing lines (EBLs), variable

range markers (VRMs), and guard

zones. The two upper menu keys

select whether you control the

EBL/VRMs or the Guard Zones for

adjustments. When finished, press Done to

return to the main radar menu keys. All settings

are retained while the system is turned off.

Electronic Bearing Lines (EBLs)

Electronic bearing lines (EBLs) are markers that

you can place on top of the radar image to aid in

navigation and to keep track of your surround-

ings. The 6000i uses two types of EBLs: fixed and

floating.

EBL / VRM

Guard Zone

Floating

– 5 –

Controlling radar

In order to control the radar, the

Control

key (if present) must

indicate

Radar

If necessary, press the

Control

key repeatedly

until it indicates

Radar

Rotating the radar image

Press

Rotate

repeatedly to choose

the screen rotation. You can choose

north up, course-up, heading-up, or

leg-up. For more information, see

Changing

radar scale and rotation,

on page 8.

Radar screen (split)

Control

Radar

– 6 –

Adjusting the radar

Press the

Page 2

key to display the

first of several pages of radar adjust-

ments. For more information about

using these keys, see

Using the radar adjustment

keys,

on page 14.

Using the radar markers

Press

Radar Markers

to display the

controls for the

6000i’s

electronic

bearing lines (EBLs), variable range

markers (VRMs), and guard zones. For more

information about using these keys, see

Using the

Radar Markers keys,

starting on page 20.

Transmitter control

When the radar image is

displayed full-screen by pressing

the

RADAR

key, a menu key

allows you to turn the radar trans-

mitter on or off.

Viewing more info

Press

More info

to display an “info bar” at the

bottom of the screen. Each additional press of

More info

shows the following information:

•

your vessel’s present Speed-Over-Ground

(

SOG

), Course-Over-Ground

(COG),

and

heading

•

your vessel’s distance (

dist

) and bearing

(brg)

to the current waypoint, if any, along with a

steering indicator

Page 2

(adjustments)

– 19 –

Restore...

Press to display the restore menu keys (see

Restore factory settings, on page 19).

Installation settings

These keys are described in the Northstar radar

installation manual, P/N GMKRadIM

(GMKRad2KIM for the 2kW unit), and settings

should not be changed unless their functions are

fully understood.

Tuning page

These keys are described in the Northstar radar

installation manual, P/N GMKRadIM

(GMKRad2KIM for the 2kW unit), and settings

should not be changed unless their functions are

fully understood.

Restore factory settings

The Restore functions can be used to set many

adjustments back to their factory-set values.

Press the Restore... key to access these keys.

Restore Auto, Restore Harbor, Restore Range

Rider and Restore Manual each set the Clutter

and Gain adjustments back to the factory

settings for the specified operating modes.

Restore Factory Settings sets the following

values:

– 18 –

minute, 3 minutes, 6 minutes, always (points are

recorded continuously), or off (points are not

recorded).

If trails are left on continuously, the recorded

points may eventually fill up a large part of the

screen. Zooming in or out will erase all recorded

trail points.

Expand

Press Expand to turn echo expan-

sion off or on. Select On to make

small echoes appear larger and

easier to see.

Radar adjustments on Page 4

Press Radar TX to turn the radar

transmitter On or Off. The radar

transmitter is automatically

turned off every time you shut

down the 6000i. Turning the transmitter off

when it is not in use saves electrical power and

allows you to work safely in the vicinity of the

rotating antenna.

Prefs...

Press to display the user preferences menu keys

(see Setting user preferences, on page 9).

Install...

Press to display the installation settings menu

keys. These keys are described in the Northstar

radar installation manual (P/N GMKRadIM) and

settings should not be changed unless their

functions are fully understood.

– 7 –

•

your vessel’s position in lat/lon (or TDs, if

enabled)

•

the water depth, water temperature, and

Speed Through Water (

STW

) reading from the

sounder (if interfaced)

Overlaying radar on the chart

To overlay radar onto the chart, press

CHART

switch to the chart screen, then press

Overlay

display

Radar

in the key’s blue box.

Radar can be displayed on the main radar screen,

or as an overlay on the chart screen, or as part of

a split screen. All radar functions are controlled

in the same way, regardless of how radar is

displayed. Just press the

Control

key so that it

displays

Control Radar

Setting radar transparency

When you overlay a radar image on a chart, you

can choose whether the radar should be opaque

(the chart doesn’t show through) or transparent

(the chart shows through faintly):

1. Press

Page 2

, then

Page 3

Page 4

and

Prefs...

2. Press

Fade

to select

Off

(no transparency),

Medium

, or

High

(maximum transparency).

To remove the radar overlay, press the

Overlay

key on the radar’s “Page 1” so that it displays

Off

– 8 –

Changing radar scale and rotation

Changing the scale

To change the radar’s scale, press the IN key to

zoom in (smaller area, more detail) or the OUT

key to zoom out (wider area, less detail).

Using zoom on a split screen

If there’s no radar overlay on the chart, the chart

and radar are scaled separately. Zooming in on

the chart, for example, has no effect on the

radar’s scale. If the Control key indicates Radar,

you’re zooming the radar; if it indicates Chart,

you’re zooming the chart.

However, if the radar overlay is turned on, the

chart and radar scales are locked together. When

you zoom in on the chart, radar scale changes to

match the chart.

Rotating the radar image

To rotate the radar image, press the ROTATE key

repeatedly until it indicates the rotation you

want; you have the same options as for a CHART

screen.

The rotation of the chart and the rotation of the

radar interact under certain circumstances, as

described in the table below. If the Control key

indicates Radar, you’re rotating the radar; if it

indicates Chart, you’re rotating the chart.

– 17 –

Sea State

The Sea State control is available only when the

Mode control is set to Range Rider.

Sea State adjusts sea clutter for all ranges up or

down slightly to correspond with the expected

echoes from whitecaps and breaking waves. The

normal or “0” setting applies no changes, and is

used when the sea state is the same as when the

gain and clutter settings were entered. Positive

numbers can be used when the sea is rougher,

and negative numbers when the sea state is

calmer.

To set the Sea State:

1. From the main radar screen, press Page 2 and

Page 3.

2. Press Sea State.

3. Use the cursor pad to enter a new number.

Press Done to go back to the main radar screen.

Interference rejection

Certain types of interference (for

example, from radars on other

vessels) can be lessened by using

the interference rejection filter.

Press Interference Rejection repeatedly to

select Off, 1(low), 2(medium), or 3(high).

Trails

Trails on the radar image help

you track the motion of moving

targets. Press Trails repeatedly to

select how often trail points are

recorded: every 15 seconds, 30 seconds, every

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