Humminbird NS 10 User Manual

NS 10 Operations Manual

HOW THE NS 10 WORKS

There are two main components of the NS 10 navigational system: the receiver which mounts
outside the cabin at a high, unobstructed point on your boat, and the NS 10 control head, which
mounts on the cons ole or at some other point convenient for use. The receiver and the NS 10
communicate by means of a coaxial cable, and are powered by your boat’s 12 volt electrical
system or battery.

The receiver, when in clear view of the sky, receives transmissions from the constellation of
GPS satellites which are continuously orbiting the earth. It selects four satellites whose position
and signal strength will provide the most accurate position “fix”, and locks onto them. From these
four satellites, the receiver is able to ascertain the time (accurate in thousanths of a second), the
position of the boat in reference to Latitude and Longitude position (accurate to +/- 15 meters
RMS with SA off), the boat’s speed and direction of travel. This information is updated once per
second and sent to the NS 10 for display. The NS 10 uses this “raw” information to provide many
options for graphic display. Your position is superimposed onto digital maps stored in the
system’s memory.

Figure 1 shows the map coverage areas. The control panel, in conjunction with the menu Select
System, allows you many options for a graphic presentation of your position, such as zooming in
and out, selecting points of interest, and providing steering indicators to guide you to your
destination. There are also advanced features for serious navigators, such as displaying your
position in TD’s, or time differentials from Loran stations, naming waypoints and routes, and
using the forward looking view to navigate a tight channel.

The liquid crystal display offers sharp viewing even in bright sunlight, and is backlit for nighttime
operation. Advanced “supertwist” technology built into the NS 10 offers a wider viewing angle and
higher contrast than ordinary LCD screens.

Though it includes sophisticated electronics, the NS 10 is tough enough to take the pounding
punishment of rough seas or a race across the lake. Completely waterproof- even salt
waterproof- your NS 10 will provide you with many years of thoroughly reliable operation.

WHAT COMES IN THE BOX
Before installing your new NS 10, please ensure that the following parts are included in the box:
NS 10 Navigational System………………………………………….NS 10 USCHO

GR-1 receiver………………………………………………………..GR-1
4” stainless steel stem mount………………………………………...402237-1
¼” ABS spacer……………………………………………………….N/A
Hole cover……………………………………………………………HC
Escutcheon plate……………………………………………………..N/A
Gimbal mounting bracket……………………………………………M-LCR P
Mounting hardware…………………………………………………..MHX-D3
1” – 14 threaded mounting bolt……………………………………...N/A
40 foot receiver cable………………………………………………..490098-1
4 foot power cable…………………………………………………...490080-2
1 foot NMEA output cable…………………………………………..490095-1
1 foot DGPS input cable……………………………………………..490141-1
120 VAC power adapter (US products only)………………………..401426-3
Instructional video tape……………………………………………...530309-1
Lock nut……………………………………………………………..N/A
Receiver gasket……………………………………………………...N/A
Stern gasket………………………………………………………….N/A

If any one of these items is missing, please see your Humminbird dealer or contact Humminbird
at our Customer Service Hotline, listed on the rear cover.

In addition to the parts supplied with your NS 10, you will also need the following for installation
and operation:

- A drill and several drill bits

- Phillips-head screw driver

- Ruler or measuring tape

- Flat-head screw driver

- Pen or pencil

- 12 volt DC power source (your boat’s battery)

- 1-amp fuse (if you connect the unit directly to the battery)

- Silicone sealant
For best results, please read all the mounting instructions before you begin installation, and

follow them carefully. Improper installation can result in poor reception and affect the accuracy of
the navigational system.

CHOOSING A MOUNTING LOCATION FOR THE RECEIVER

Before mounting the receiver, gat her the parts you will need: The receiver, 4” stem mount, ¼”
spacer, gasket, receiver cable, escutcheon plate, and mounting hardware.

Next, choose the mounting option to use. The receiver can be mounted directly to a flat surface (
Figure 3) with a maximum wall thickness of 3/8”. The lower side must be accessible to insert the
fastener.

Or the receiver can be mounted on he 4” stern mount provided (Figure 4 & 5). The stern mount
can be mounted directly to a flat horizontal surface, or if no access for cable routing is available,
the ¼” ABS spacer can be installed between the mounting surface to provide a side for the cable.

A variety of standard marine antenna hardware is available at marine dealers, which fit the 1”-14
female mounting threads on the receiver. Fiberglass shaft extensions are helpful accessories for
attaining maximum performance from the NS 10 receiver, however, before purchasing an
extension make certain that the inside diameter is at least ½” if you plan to route the cable
through the extension mast.

When choosing a location to mount the receiver, unobstructed visibility of the sky is essential for
best performance. The effective area of reception is only 7 degrees above the horizon (Refer to
Figure 2). VHF or Loran antennas are not normally of sufficient size to cause a noticeable
degradation of signal quality, but larger antennas or portions of the boat’s superstructure will
seriously obstruct satellite visibility. Care should be used in selecting the mounting technique and
location since the receiver contains much of the electronics necessary to process the GPS
signals. Do not mount the receiver on top of a radar dome or within the transmitted radar beam.
Do not paint the exterior of the receiver housing, or use harsh chemicals to clean it, as these may
degrade performance.

CHOOSING A MOUNTING LOCATION FOR THE CONTROL HEAD
Before mounting the NS 10, gather the parts you will need: the NS 10, mounting hardware kit.

The power cable, hole cover, and the 40 foot receiver cable. (Refer to Figure 6). If the receiver
cable is not long enough to reach the desired mounting location, an extension cable is available.
See “Accessories” for information on the EC-6 extension cable. This cable may be extended to a
total length of 70 feet.

IMPORTANT: Do not shorten the 40 foot receiver cable or connect the receiver directly to the
control head without the 40 foot receiver cable. This will cause damage to the NS 10 electronics
and void your warranty. Do not cut and splice the cables from the receiver to the control head.
This will alsoo void your warranty.

Next, consider where to mount the NS 10. Pre-assemble the NS 10 on the gimbal bracket and
place it at likely mounting locations. The gimbal mounting bracket offers mounting capabilities for
the top of a shelf or bulkhead (and lets you tilt the unit forward and backward to ease viewing and
operation). If sufficient space is available in the console or gauge area of the boat, flush mounting
the NS 10 may be an option. See the “Accessories ” for more information. To choose the best
location, consider the following:

- The mounting surface should be adequately supported to protect the NS 10 from excessive
shock and vibration.

- The mounting area should allow at least 2” clearance at the back, sides, and top of the unit
for electrical connection, air flow, and ease of removal.

- The receiver should be mounted first and the cable routed to the area you have selected to
mount the unit.

- Any accessories such as the NMEA output cable should be routed before installing the NS

10.

MOUNTING THE RECEIVER

Deck Mount

Follow the instructions below if you are deck mounting the
receiver: (Figure 3)

1. Once you have located a mounting position that
affords maximum satellite visibility to the receiver,
make sure you can gain sufficient access to the lower
side of the deck to insert the mounting bolt and tighten
it. The maximum thickness of the mounting surface
should not exceed 3/8”.

2. Mark the mounting point with a pencil and remove the
receiver.

3. Using a 1” hole saw or wood bit, drill a hole at the
marked point.

4. Insert the receiver cable through the 1” rubber gasket, then the hole.

5. Position the receiver over the hole and hold it in place.

6. Insert the 1’-14 mounting bolt over the cable end from the bottom side of the deck and screw
it into the receiver base.

7. You may turn the receiver to tighten fully.

8. Connect the extension cable to the receiver cable and route to the NS 10.

Note: If the mounting surface is rough, or irregular, use silicone sealant to ensure a wat er tight
joint.

4” Stem Mount

Follow the instructions below if you are stem mounting
the receiver: (Figure 4)

1. Once you have determined a location which affords
maximum satellite visibility to the receiver, mark the
location with a pen or pencil.

2. If access to the lower side of the mounting surface is
possible, you may choose to route the receiver cable
through the surface. If access is not possible or
desirable, a ¼” ABS spacer is provided to allow routing
of the cable to the side of the stern mount. (Figure 5)

3. Using the stem mount as a template, mark the three
mounting holes on the mounting surface.

4. Remove the stem mount and drill a 1/8” hole at each of
the three marked points.

5. If you have decided to route the cable through the
mounting surface, drill a fourth hole at the center point
of the three mounting holes, ½” diameter, and insert

the cable through the gasket, and then the hole.

6. Place the stem mount with either the spacer or the rubber gasket over the mounting holes
and fasten using the mounting screws provided. If the spacer is used, the receiver must be
held in close proximity to the stem mount so that the cable may be routed through the gap in
the side of the spacer prior to installing the screws.

7. Install the locking nut (inverted) onto the stem mount.

8. Install the receiver onto the stem mount by tightening clockwise being careful not to bind or
over-twist the cable.

9. With the receiver fully seated, tighten the locking nut against the base of the receiver.

10. Fasten the extension cable to the receiver cable and route to the NS 10.

11. If the receiver cable must enter the deck at a point other than at the stem mount, escutcheon
plate and fasteners are provided to seal that hole as well.

Additional Mounting Methods Using Other Marine 1”-14 Hardware
Most marine distributors carry a wide variety of antenna mounting hardware. The NS 10 receiver

was designed with this hardware in mind to allow mounting of the receiver on any boat. Any
hardware item designed to fit a standard 1”-14 marine female thread will work with the NS 10
receiver. This hardware includes 1, 2, 4, and 8 feet extension masts which allow mounting the
receiver well above obstructions. Installation is similar to the use of the 4"”stem mount provided
with your unit, however, the inside diameter of the extension mast must be at least 1½”if you plan
to route the cable through the extension mast. Be sure that whatever mounting option you choose
provides sufficient rigidity to support the receiver and hold it securely in place and protect it from
low hanging branches or other obstacles.

Note: Ensure that any mount hardware be high quality stainless steel.

INSTALLING THE CONTROL HEAD

Gimbal Bracket Mount

Follow instructions below for mounting the NS 10 with the gimbal bracket. (Refer to
Figure 6)

1. Set the gimbal bracket on the mounting surface.

2. Mark the position of the 4 mounting holes for mounting screws.

3. At least 3" behind the bracket, mark and drill a hole 5/8" to 3/4" in diameter through which to

route the cables.

4. Position the hole cover over the 5/8" hole. Mark and drill the two 1/8" mounting screw holes.

5. Move the bracket aside and drill 4, 1/8" holes at the marked points.

6. Pull the power cable, the receiver cable, and any accessory cables through the 5/8" hole.

7. Mount the bracket to the boat using 4-1" wood screws.

8. Install the hole cover over the 5/8" hole routing the cables through the slots, but do not fully

tighten the mounting screws until you determine how much cable to leave exposed.

9. Insert the cable connectors into the corresponding numbered connector port on the NS 10. The

connectors are keyed to insure correct orientation. (Refer to Figure 9)

10. Install the NS 10 on the gimbal bracket using the knobs supplied with the rubber washers on

the inside of the gimbal bracket.

11. Ensure that sufficient slack is available in the cables to allow tilting the unit, then fully tighten

the hole cover screws, which serves as a strain relief for the cables.
Note: The NS 10 should be connected to the power independent of the ignition switch, because
the NS 10 will have to be restarted if power is disconnected at the source. Use an auxiliary
battery, if available. This will prevent the battery voltage to the NS 10 from becoming too low
while starting the boat engine.

IMPORTANT: Do not shorten the 40' receiver cable or connect the receiver directly to the control
head without the 40' receiver cable. This will cause damage to the NS 10 electronics and void
your warranty. Do not cut and splice the cables from the receiver to the control head. This will
also void your warranty.

If your boat does not have a fuse panel, you can wire the power cable directly to the
battery with an in-line fuse holder (not included) in the positive (+) wire. Never connect the NS 10
to an unprotected power source. Connect the black wire to the ground strip or negative (-)
terminal, and the red wire to a properly fused positive (+) terminal. The fuse (not included) should
be a 1 amp slow blow fuse available at any marine or automotive distributor.

Note: The NS 10 should be connected to power independent of the ignition switch, because the
NS 10 will have to be restarted if power is disconnected at the source. Use an auxiliary battery, if
available. This will prevent the battery voltage to the NS 10 from becoming too low while starting
the boat engine.

Optional Flush Mount

Figure 7 shows a flush mounted NS 10 control head. If you would like to flush mount your NS 10
additional hardware is available. (Refer to section V11. Accessories)

BASIC FUNCTIONS: GETTING STARTED

This section contains the information needed to begin navigating with your NS 10. After
familiarizing yourself with the “Screen Display” and reading through “Turning the NS 10 ON”, the
basic functions will be introduced. These involve the use of both discrete keys and the Select
System> In addition to this section you should view the instructional video to help you
immediately begin navigation once the system has been installed on your boat.
If you have not already installed your NS 10 you may experiment with the operation of the NS 10
by using the built in simulator (Refer to section 1V. “Simulator and Map Preview).

Note: All of the screens in the following sections are illustrations only and were created for
purposes of this manual. Since they are not actual NS 10 screen displays, they may vary slightly
from your NS 10.

NS 10 SCREEN DISPLAY

Cursor: The cursor key is used to move the cursor which is the cross-hair line visible in the
graphics area.

Light: Multiple pushes of this key will adjust the level of light.
Map Datum: The map datum in use is displayed in this area.
Mode Indicator: This area displays the modes which you have entered to perform a certain task.
Multi- Function Display Box: This area contains your present course information, cursor

information or steering information.
Numeric Longitudinal Display: This area displays the numeric longitude coordinate of your

present position.
Numeric Latitude Display: This area displays the numeric latitude coordinates of your present

position.
Plotter Range: This area displays the range in the specified units shown in the graphic area.
Select System: The Select System is made up of four buttons SELECT, ENTER, and op/down

areas. With these four buttons you can make men adjustments to tailor the NS 10 to your needs.
Refer to “Using the Select System”.

Speed: This area displays your current speed.
Time/Date: This area displays the current time and date.

Discrete Keys and Numeric Keypad
CLEAR: Clear is used to turn off alarms, and to

negate modes such as PICK, CURSOR, ROUTE,
and DIST (distance). It can also be used to turn off
a route being traveled and to delete all temporary
waypoints and routes.

DIST: Distance calculates the distance between
two points, other than your present location.

GO TO: Creates a temporary route to a point
selected by PICK or with the cursor.

HELP: Provides many help messages and
provides further explanation of some functions.

MAP: Pressing MAP once when using the Select
System will return the map to the graphic area. Pressing MAP when the map is already in the
graphic area displays the Map Setup 1 menu, pressing again displays the Map Setup 2 menu.
(For additional information see “Additional User Set -up Options” in section 1V.)

NUMERIC KEYPAD: When numeric input is expected the Keypad icon appears in the graphics
area and the keypad represents the numeric value shown on the discrete key. (Refer to Figure 8).

PICK: Displays all information about any waypoint visible on the screen.
P STOR: Stores your present position as a temporary waypoint, or stores the position of the

cursor when it is in use.
STEER: Provides detailed steering information when a route has been defined.
TEXT: Pres sing once displays the names of major geographic points. Pressing a second time

turns the names off.
VIEW: View controls the orientation of the map. You may view “top down” or “forward-looking”.

Refer to section 111.
ZM IN/ZM OUT: Zoom controls the range at which the map is viewed. Refer to “Zooming in and

Out”.

Connections to the NS 10
The back of the NS 10 has a centralized connector area where all inputs and outputs are

located (Refer to Figure 9). All cables and connectors are waterproof and us e gold plated
contacts to inhibit corrosion. The connectors are keyed to prevent reversed connection. Don’t
force a connector in or out, and when removing a connector, grip it by the serrated plastic grip,
don’t pull on the cable.

The connectors are labeled as follows:

1. POWER: Input for 12 v dc power from the boat’s electrical system or battery draws 0.4 to 0.6
amps of current. Always use the power cable supplied with the unit. (The NS 10 can operate
from 11-17.5 volt DC and is internally protected from over voltage).

2. DIFFERENTIAL BEACON RECEIVER INPUT: The connector provides an input port for a
differential GPS signal. When using DGPS there will be an indicator on your display. If the
indicator is a hollow box the NS 10 is receiving information from the receiver. If the box is
filled in then good information is being received. When DGPS is displayed the NS 10 is
operating in the differential mode and latitude/longitude values should be within DGPS
tolerances.

3. NMEA OUTPUT: This connector, with the supplied cable, allows the NS 10 to interface with
an autopilot or other electronics which require navigation information. (Refer to section 1X,
NS 10 Interface Option).

4. GPS RECEIVER: The receiver connects here with the supplied cable.

5. Reserved for fut ure use.

IMPORTANT: Do not plug or unplug any connector while the NS 10 control head is turned on.

Gimbal Mounting Bracket: Allows the NS 10 to be adjusted to the optimum viewing angle. To
adjust, loosen the knobs on the gimbal mounting bracket and adjust the unit for best visibility.
After adjusting, tighten the knobs and the unit will stay in position.

TURNING THE NS 10 ON AND OFF

If you have completely installed your NS 10, and the receiver, you
should test the installation, by reading through this section.

If you have not installed your NS 10, you are still able to experiment
with the capabilities of the NS 10. The 120 VAC adapter (Figure 10)
provided with your NS 10 allows you to power your unit from a
receptacle at home.

Note: AC adapters are not provided with some NS 1o International
models.

This is especially convenient when learning to use the NS 10, or for
entering a long multileg route from charts (Refer to section 1V,
“Simulator and Map Preview”).

IMPORTANT: The power adapter is intended to power the NS 10 for use with the simulator of for
input of navigation points etc. It does not supply sufficient current to power both the NS 10 and
the Receiver and is not intended for use in normal operation.

The built in simulator allows you to experiment with the many functions of your unit. The
remaining instructions can be followed either in simulator mode, or in actual operation.

Turn On Screens/Disclaimer
Press POWER After pressing this key, you will hear an audible chirp. This means that the NS

10 has accepted your input.

The unit first performs an internal self test (Refer to Trouble-shooting for more information). After
about 10 seconds, the display will show which map is installed in your unit and the map datum.
Check to see that the installed map is the map you are expecting, US or International. If the
installed map is something other than what you need, call our Customer Service Hotline listed on
the rear cover of the manual.

This screen also contains a statement concerning built-in maps. Read this carefully.
Humminbird has gone to an extreme to ensure the accuracy of the stored map in the unit.

However, many factors outside of our control may affect absolute accuracy of the system. It is not
our intention to provide a product which replaces all other means of navigation, and common
sense on the part of the user, but to provide a highly accurate, reliable aid to navigation that is
both easy to use, and ruggedly constructed for years of trouble-free service.

Press any key to continue.
The status screen, which is now shown supplies much information about the system operation.

If you are using the NS 10 with the receiver not connected a message will appear in the lower left
of the display saying “RECEIVER IS NOT CONNECTED” and the start up mode will show
“Error”. If you are using the NS 10 with the AC adapter ignore this message, as the receiver is not
necessary for simulator operation. If the receiver is connected and this message appears Refer to
the “Troubleshooting” section.

In actual operation, the graphic satellite symbols tell you which GPS satellites the NS 10 is
acquiring. The NS 10 constantly monitors all visible satellites and selects the four best to use for
position calculations based on elevation, azimuth, proximity to each other, and other factors.

Without a functioning receiver connected, nothing will change on the screen, except elapsed
time.

Warm Start/Cold Start
The first time your NS 10 receiver is powered up a cold start may occur. This is because the NS

10 remembers its last position when you power it off, and your present position is probably
somewhere other than Eufaula, Alabama, where the NS 10 is built. In a cold start, the NS 10
does not know where it is, and it takes a little longer to find itself. It is a good time to make sure
that your NS 10 receiver has a clear view of the sky, as the better the visibility, the more satellites
will be visible to the unit, and the less time the cold start will take. A normal clod start will take
between 5 and 20 minutes depending on your location, time of day, and many other factors.

The graphic on the system status screen allows you to watch the unit’s progress as it locates
itself. (Refer to Figure 11).

At least three satellites must be located in order for the NS 10 to ascertain its position and you
can watch its progress in the on-screen graphic. As the NS 10 searches for satellites, the satellite
number will appear in a white icon. When a satellite is being tracked the icon will turn dark.

During a cold start, it is far easier for the NS 10 to provide a position “fix” when it is stationary.
After the position has been determined, the NS 10 will provide accurate information at speeds up
to 199 Knots.

When your NS 10 begins navigating, the lat -lon numbers on the top right of the display will show
your present position and the graphic area of the display will show a map with your position at the
center.

Note: Any time you see a “WAIT” in the map area, the NS 10 knows your position and is
retrieving the appropriate map from memory. The unit will not accept any control input while this
occurs except power, light, the Select System, and zoom in/ zoom out. (Refer to Figure 12).

If your position is stationary when the NS 10 identifies your location and first draws the map, the
speed will show “00” and the course indicator will be blank. (Refer to Figure 13) Due to selective
availability, it is possible that a speed will be shown (usually less than 2 knots) when you are not
actually moving.

When your position changes, several things will happen on the screen. Your speed will of
course indicate the speed you are travelling, the course indicator will show the direction of travel,
and after a short time, you will see a course history line showing where you have been.

Should your NS 10 stop navigating for any reason, a “NOT NAVIGATING” message will appear
on the screen, and the position, heading and speed displays will be blank. If the antenna has
been temporarily obstructed, the NS 10 should begin navigating within about one minute once the
obstruction is removed, if it takes longer than one minute, the receiver probably was forced into a

cold start. If so, to save time you may want to turn the NS 10 off and back on again to initiate a
warm start.
Continue to the next section “Selected System”, if your NS 10 appears to be working correctly.

To power off the NS 10 hold down the power button for about 3 seconds, until you hear an
audible chirp. This old down” feature will prevent accidentally turning the unit off during normal
operation.

USING THE SELECT SYSTEM

Basic Overview
The Select System consists of only four keys. These keys are by far the most capable of any

keys, because they represent the equivalent of fifty or more discrete function buttons Using the
Select System enables you to access dozens of unique features in addition to adjusting the
settings of your NS 10. These are further explained in section 1V. Advanced Functions of the NS

10. However, you will need to use some Select System functions now to customize the unit for

your use.
Figure 14 shows a break down of the Select System menus. If at any time you have questions

the index contains detailed information for your reference.

SYSTEM OPTIONS
(Setting up your NS 10)

To adjust the settings on your NS 10 you will enter the System Options menu. By using the
Select System you may adjust the following settings:

- Units: Distance/Speed

- Heading display

- Clock time display

- Update averaging

- NMEA Output

- Position: Lat/Lon or TD

All setting adjustments will be retained even when power is turned off or disconnected.
Press SELECT. This will display the MAIN MENU in the graphics area of the display. All menus

will be shown in this area.

Figure 15 locates:
Menu Heading- Title of the menu that you are currently using.
Options - These are the options available to you under the menu that you are using.
Key Functions - This area contains references to key functions available to you while using the

current menu.

Use the up/down arrows to highlight SYSTEM OPTIONS.
Press ENTER to enter the menu SYSTEM OPTIONS. Within SYSTEM OPTIONS there are four

more options. USER SETUP, DISPLAY CONTRAST, ALL CLEAR, and DATALOG.

Use the up/down arrows to highlight USER SETUP.
Press ENTER. A user setup list will be displayed.

Use the up/down arrows to select the parameter needing adjustment.
Press ENTER, when the setting is correct. This will automatically prompt the adjustment menu.

Use the up/down arrows to adjust the setting for your preference.
Press ENTER, when the setting is correct. This will return you to the USER SETUP menu.
Use the up/down arrows to select your next parameter for adjustment. Continue as before until

you have made all necessary adjustments.
If your adjustments are complete press SELECT twice to return to the MAIN MENU. Press

SELECT a third time to exit the Select System and return to the map. Or you may press MAP, at
any time while in the Select System, to return directly to the map display.

The following adjustment menus are available in your USER SETUP menu.

Use the up/down arrows to choose TRUE or MAGNETIC North then press ENTER. (Refer to
“Heading” in the Glossary)

Use the up/down arrows to choose the desired setting: 12 HOUR LOCAL, 24 HOUR LOCAL,
UTC then press ENTER.

If you choose 12 or 24 local use the up/down arrows to select the number offset hours for your
region then press ENTER.

Note: If you do not know the UTC offset hours for your time zone, adjust the setting until the time
shown at the lower right of the display matches the current local time. Refer to section X.
Glossary for information on UTC.

Use the up/down arrows to adjust the setting.
UPDATE AVERAGING controls the rate at which time, position, speed , and course information

is displayed. On the fast setting, the display is updated once per second. On medium, the
information is updated every three seconds with speed and heading being averaged over the last
three seconds. The SLOW setting has a 5 second update and averaging. The MEDIUM or SLOW
setting is more appropriate for long trips, or on slower moving boats.

Note: The fast update averaging is not available when using Loran TD positions. (Refer to
section 1V. “A dditional user set-up options”)

Use the up/down arrows to adjust the setting.
The NMEA adjustment is only necessary when additional navigational instruments are used with

your NS 10. When the NMEA 0183 output is turned on the NS 10 will provide the NMEA 0183
sentences every two seconds. (Refer to section 1X, NS 10 Interface Option)

Use the up/down arrows to choose LORAN TD or LAT/LON coordinates.
Press ENTER when the setting is correct.
If you choose LORAN TD the SELECT GRI menu will be displayed. You must choose the group

repetition interval. (Refer to section X. Glossary)

Use the up/down arrow to select the GRI setting.
Press ENTER when the setting is correct. You will be asked to choose a secondary station.

Use the up/down arrows to choose the first secondary station.
Press ENTER when setting is correct. You will be asked to choose another secondary stayion.

Use the up/down arrows to choose the second secondary station.
Press ENTER when the setting is correct.
Note: Loran TD’s cannot be directly entered when using the waypoint menus. Only latitude and

longitude positions can be entered in the waypoint menus.

IMPORTANT: Before using existing Loran TD numbers, you should be aware that there is a
difference between the absolute accuracy and the repeatable accuracy of Loran units. Whereas
GPS receivers effectively have no difference between absolute and repeatable accuracy, the
absolute and repeatable accuracy will vary greatly with Loran units. Lorans provide poor absolute
accuracy (500 meters or more), therefore, using an existing TD number from a Loran unit in a
GPS receiver will result in a very lare error. Never use the same Loran TD number in your NS 10,
but use the P STOR key to accurately store the actual position when arriving at the waypoint.

DISPLAY CONTRAST

Retrieve the MAIN MENU by pressing the SELECT key.

Use the up/down arrows to highlight SYSTEM OPTIONS.
Press ENTER when the setting is correct. The SYSTEM OPTIONS menu will be displayed.

Use the up/down arrows to highlight DISPLAY CONTRAST.
Press ENTER when the setting is correct. The DISPLAY CONTRAST screen will be displayed.

This affects the optimum viewing angle of the LCD display.

Use the up/down arrows to adjust the contrast to maximize viewability.
Press ENTER when the setting is correct. The SYSTEM OPTIONS screen will be displayed.
Press SELECT to exit SYSTEM OPTIONS, pressing SELECT again will exit to the MAIN MENU

and pressing SELECT a third time will exit the Select System and return to the map. Or you may
press MAP, at any time while in the Select System, to return directly to the map display.

Note: The Display Contrast setting adjustment will be retained even when power is turned off or
disconnected.

LIGHT, TEXT, MAP, CLEAR AND HELP BUTTONS

The following discrete function keys will be helpful in the basic operation of your NS 10.

LIGHT: Multiple pushes of this key will adjust the level of light. The light is
set at intensity level 2 when the unit is turned on. There are four intensity
positions plus “OFF”.

TEXT: Pressing TEXT once displays the names of major geographic
points. Pressing TEXT a second time turns the names off.

CLEAR: CLEAR is used to turn off alarms and to negate other modes such
as PICK, CURSOR, ROUTE, and DIST (distance). Also, depressing CLEAR
for three seconds will delete all temporary waypoints and routes.

MAP: Pressing MAP once when using the Select System will return the
map to the graphic area. Pressing MAP when the map is already in the
graphic area displays the Map Setup 1 menu, pressing again displays the
Map Setup 2 menu. (for additional information see “Additional User Set -up
Options” in section 1V.)

HELP: HELP provides many help messages and provides further explanation of some functions.
Help information is not available from all screens.

CHANGING YOUR VIEW

There are two ways to view the map: the “top-down view” (Figure 16) which orients the map with
north at the top of the display, and your position at the center of the map, and the “forward­looking view” (Figure 17) which orients the map to the direction you are traveling, with your
position at the lower center of the display.

Note: If you are not moving this key will not function.
You may toggle back and forth between either view except when in the cursor or pick mode. The

cursor and pick modes cannot be operated in the “forward looking” view.

The “top down view” is the default setting, and allows you to see your course history line, which
is where you have been. Remember that north is always shown at the top of the map, so the
course indicator arrow is important to see the direction you are traveling. As your position
changes, the map will scroll by, so your position is always shown near the center of the map.

The “forward-looking view” is the equivalent of turning the map so the direction you are traveling
is at the top for the display. A course projection line helps to visualize the direction of travel. The
“forward-looking view” is especially helpful when following a route, or navigating a channel. You
simply turn the boat to align the projected course line with your destination or the next point in
your route. The map will rotate and scroll to give an accurate “moving map” of your route.

Note: The maximum range in the forward looking view is 22 NM, 25 SM, or 40 KM.

Note: You cannot change to the forward looking view while in the cursor or pick mode.

ZOOMING IN AND OUT

Pressing ZMIN or ZMOUT will control the range of the map.
Pressing ZM IN will reduce the range of the map. Pressing ZM OUT will increase the range.

Note the range indicator in the lower left part of the graphics area. When ZM IN is pressed, a box
is shown in the graphics area to indicate the size of the new range. (Figure 18) Figure 19 shows
zoom from a “forward-looking” position. Due to the complexity of the maps, it may take several
seconds for the NS 10 to “re-draw” the map after using zoom. There are nine zoom ranges
available.

Note: When using the two smallest zoom ranges, the graphics area will become a plotter only,
with no map shown.

The smallest zoom range is 0.5 NM, 0.6 SM, or 1.0 KM. The largest zoom range is the region
map. ZM IN or ZM OUT centers the new range around your present position, except when in the
cursor or pick mode. If the cursor has been moved to a location other than your present position
or if a waypoint has been picked, the new range will be centered around the cursor position or the
picked waypoint. This feature is extremely valuable when previewing your route, or viewing
waypoints some distance from your present position. Pressing CLEAR will clear the cursor or pick
mode and re-center the map around your present position.

CURSOR

The cursor is not a discrete function key, but is actually four different keys which are used for
several important functions.

The cursor is a cross-hair line visible in the graphics area of the display. (Refer to Figure 20)
Whenever the cursor is visible, the cursor mode is active as indicated by the mode indicator at
the lower part of the graphics area. As you may know, any mode may be determined by pressing
the CLEAR key.