Navman FISH 4200 User manual

NAVMAN
Installation and
Operation Manual
www.navman.com
FISH 4200
FISHFINDERS

2NAVMAN FISH 4200 Installation and Operation Manual
FCCStatement
Note: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designedtoprovidereasonableprotectionagainstharmfulinterferenceinanormal
installation.Thisequipmentgenerates, uses andcanradiateradiofrequency energy
and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does
causeharmfulinterference to radioortelevisionreception,which can bedetermined
by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an output on a circuit different from that to
which the receiver is connected.
Consult the dealer or an experienced technician for help.
A shielded cable must be used when connecting a peripheral to the serial
ports.

3FISH 4200 Installation and Operation Manual
NAVMAN
Contents
1 Introduction ..................................................................................................... 5
2 Getting started ................................................................................................. 6
2-1SimulationMode .......................................................................................................... 7
3 Operation ......................................................................................................... 7
3-1ALARMS ..................................................................................................................... 8
3-2HISTORYscreenoperation ......................................................................................... 8
3-3HISTORYscreeninterpretation ................................................................................... 9
3-4ZOOM screen ........................................................................................................... 12
3-5SONAR screen ......................................................................................................... 12
3-6NAVIGATE screen .................................................................................................... 13
3-7 DATAscreen ............................................................................................................. 14
3-8FUELscreen................................................................................................................ 14
3-9RANGE menu ........................................................................................................... 15
4 SETUP menu.................................................................................................. 16
4-1ALARMSmenu.......................................................................................................... 16
4-2UNITS menu ............................................................................................................. 18
4-3KEY BEEP ................................................................................................................ 18
4-4FISH SYMBOL.......................................................................................................... 18
4-5CONTRAST menu .................................................................................................... 18
4-6LOGmenu.............................................................................................................. .... 19
4-7FUELmenu.................................................................................................................. 19
4-8INSTALLmenu .......................................................................................................... 20
4-9CALIBRATIONmenu ................................................................................................ 21
4-10ResettingtoFactory Defaults................................................................................... 22
5 Installation ..................................................................................................... 23
5-1What comes withthe FISH 4200? ............................................................................. 23
5-2Optionsand accessories ........................................................................................... 23
5-3Mountingthe FISH4200 display unit ......................................................................... 23
5-4Wiring Connection ..................................................................................................... 24
5-5Connectingthe FISH4200 to otherinstruments ........................................................ 25
Appendix A - Specifications ............................................................................ 26
AppendixB- Troubleshooting............................................................................... 27
Appendix C - How to contact us..........................................................................30
NAVMAN fishfinders are set up with default units of feet, °F (Fahrenheit) and knots.
Please refer to section 4-2 of this manual to change the units.

4NAVMAN FISH 4200 Installation and Operation Manual
Important
It is the owner’s sole responsibility to install and use the instrument and transducers in a manner that will
not cause accidents, personal injury or property damage.The user of this product is solely responsible for
observing safe boating practices.
NAVMAN NZ LIMITED DISCLAIMSALLLIABILITYFORANYUSE OF THIS PRODUCTINAWAYTHAT
MAYCAUSEACCIDENTS, DAMAGE OR THAT MAYVIOLATE THE LAW.
GoverningLanguage:Thisstatement,anyinstructionmanuals,userguidesandotherinformationrelatingto
theproduct(Documentation)maybetranslatedto,orhasbeentranslatedfrom,anotherlanguage(Translation).
In the event of any conflict between any Translation of the Documentation, the English language version of
the Documentation will be the official version of the Documentation.
Fuel Computer: Fuel economy can alter drastically depending on the boat loading and sea conditions.
Thefuel computer should notbe the sole sourceof information concerning availablefuel onboard andthe
electronicinformationshould be supplemented byvisualorotherchecksofthe fuel load.Thisisnecessary
due to possible operator induced errors such as forgetting to reset the fuel used when filling the tank,
running the engine with the fuel computer not switched on or other operator controlled actions that may
render the device inaccurate. Always ensure that adequate fuel is carried onboard for the intended trip
plus a reserve to allow for unforeseen circumstances.
This manual represents the FISH 4200 as at the time of printing. Navman NZ Limited reserves the right to
make changes to specifications without notice.
Copyright©2002NavmanNZLimited,NewZealand,allrightsreserved.NAVMANisaregisteredtrademark
of Navman NZ Limited.

5FISH 4200 Installation and Operation Manual
NAVMAN
1 Introduction
Congratulations on choosing a NAVMAN fishfinder.
For maximum benefit, please read this manual
carefully before installation and use.
This manual describes the installation and operation
proceduresforthe FISH 4200.
TheNAVMAN Fishfinder
The FISH 4200 is an ultrasonic fishfinder with four
levelsofgreyscale.Itprovidespowerfulsoftwareand
a large, high-resolution screen with a zoom facility
and a choice of fish symbols. As well as detecting
fish,theFISH4200measures thewaterdepth,water
temperature and boat speed.
It also measures the battery voltage, engine hours,
andfuelconsumption(requiresoptionalfuelkit), and
has two distance logs (Trip Log and Total Log).
An installed FISH 4200 has two parts:
- the transducer attached to the hull
- the display unit.
Thetransducergeneratesan ultrasonicpulse(sound
that is above the hearing range of the human ear),
which travels down towards the bottom, spreading
out into a cone shape. When the pulse meets an
object, such as a fish or the bottom, some of the
pulse is reflected back up towards the boat and is
received by the transducer. The depth of an object
can be calculated by measuring the time between
sending the pulse and receiving its echo. The
NAVMAN FISH 4200 will detect the bottom down to
600 feet (180 metres), depending on the clarity of
the water and the type of transducer used.
Thestrengthofanechocanvaryforanumberofreasons.
Larger fish usually return stronger echoes, and so do
fish in the middle of the cone, where the pulse is
strongest.Reasons for weak echoes include the fish or
objectbeingindeepwater, turbidwaterorintheedgeof
the cone where the pulse is weakest. Turbid water
scatters the ultrasonic pulse and is difficult to ‘see’
through.Turbiditycanbecausedbyairinthewater(e.g.
from another boat's wake) or by mud in the water.
Important
It is vital to the performance of the fishfinder that
the transducer is installed in the best location.
Please follow the instructions in the Transducer
Installation manual very carefully.
All of the NAVMAN 4000 Series fishfinders use new
proprietary SBN Technology for sonar processing to
improvesignalenhancement,bottomrecognition&noise
rejection. SBN Technology uses the latest in digital
adaptivefilteralgorithmstoenhanceallreturnedsignals.
At the same time, SBN Technology uses active noise
control to reject interference, which can often be
mistaken by fishfinders for true returns. Using SBN
Technology, the FISH 4200 analyses the reflections
fromeachpulse,filtersfalsereturns,anddisplayswhat
is in the water under the boat.
Thedistinctionsbetweenthefour levels of shading
helptheuser to better interpretwhat is in thewater
and what type of bottom is under the boat.
Assistingwith navigation
The FISH 4200 can be used to find fish, to locate
features on the bottom such as reefs or wrecks,
and to help recognise favourite fishing spots from
the profile of the bottom. Use the NAVMAN
fishfindertoassistnavigationby followingthedepth
contours marked on charts.
IMPORTANTNOTE ON USE. While any fishfinder
can be used as an aid to navigation, accuracy can
beinfluencedbymanyfactorsincludingthelocation
of the transducer. It is the user’s responsibility to
ensure that the FISH 4200 is installed and used
correctly.
How to find fish
Underwater features like reefs, wrecks and rocky
outcropsattractfish.UsetheFISH4200tofindthese
features,thenlookforfishbypassingoverthefeature
slowly several times using the ZOOM screen (see
section 3-4). Where there is a current, the fish will
often be found downstream of the feature.
For deep-sea fishing with the FISH 4200, a rapid
change in temperature may indicate the edge of a
warm or cold current. The temperature difference
canformabarrier,and thefishmaynotswimthrough
this. Search for fish on either side of the barrier.
Cleaningand maintenance
The FISH 4200 should be cleaned with a damp
clothormilddetergent.Avoidabrasivecleanersand
petrolorothersolvents. Alwayscover or remove a
transom-mounted transducer when repainting the
hull. If painting over a through hull transducer with
antifouling paint then use only one coat of paint.
When repainting the transducer, remove previous
coats of antifouling paint by sanding it lightly.
When not in use, the FISH 4200 can either be
removed from the installation bracket and stored
inasafe,dry,coolplacesuch astheNAVMANcarry
bag, or left on the installation bracket and securely
covered with the sun cover supplied.

6NAVMAN FISH 4200 Installation and Operation Manual
Power and transducer connection
TheFISH4200 has two socketslocatedon the rear of
the unit. The power cable has a black 8 pin LT
connector plug. Push this plug into the lower socket,
whichhasablacknutandislocatedon the rear of the
display unit, then turn the collar to lock. Make sure
that the collar is secure for a watertight connection.
The transducer cable has a blue 8 pin LT connector
plug. Push this plug into the upper socket, which has
a blue nut and is located on the rear of the display
unit, then turn the collar to lock. Make sure that the
collar is secure for a watertight connection.
If the transducer is not connected, the message “NO
TRANSDUCER DETECTED. ENTER SIMULATION
MODE?” will appear. Press to switch betweenYES
orNO.(Moreinformation on the simulation modecan
be found in the following section). Press to
confirm the selection and the startup sequence will
continue.(Note: If thetransducerwasnotintentionally
disconnected, turn the display unit off and refer to the
section on Troubleshooting in Appendix B.)
Names of keys:
Cursor key
key
+gain key
-gain key
Powerkey
Definition of Press and Hold in this manual:
·Press means to push the key for less than one
second.
·Hold means to push and hold the key down for
more than one second.
Power on
To turn the fishfinder on press .
Note: if the unit is wired for Auto Power (see section
5-4) the fishfinder will turn on automatically when
the boat's ignition is turned on.
A title screen briefly appears which displays basic
productinformation, includingthesoftwareversion.
The FISH 4200 then automatically displays the
screen that was last used.
Power off
To turn the fishfinder off, hold .Acountdown box
appears.Continue tohold forthreeseconds until
the fishfinder turns off.
Note: if the unit is wired for Auto Power (see
section 5-4) the fishfinder can only be turned off
when the boat’s ignition is turned off.
Language selection
To check which language is currently selected,
press to display the MAIN MENU.
Follow these steps to change the language:
1. Power off the unit.
2. While the unit is off, hold down the key.
3. Keep holding down the key and power
on the unit.
4. The screen displays a list of languages.
Press the Cursor or key to highlight a
language, then press the Cursor key to
select it. The fishfinder will continue the
startup sequence.
For further information, see section 4-8.
Backlighting
Use the button to adjust the backlighting to suit
individual preferences.
Press once, at any time, to see the backlight
bar. This is displayed at the bottom of the screen
and shows the current setting.
Press repeatedly until the desired backlighting
level is achieved. The backlight bar will disappear
2 seconds after the last press.
Fuel Computer
With an optional fuel kit the FISH 4200 becomes a
sophisticated yet easy to use fuel computer.
2 Getting started

7FISH 4200 Installation and Operation Manual
NAVMAN
An internal simulator allows users to learn how to
operate the fishfinder off the water.
InSimulation mode theword“SIMULATION”flashes
onthebottomofthescreen.Thefishfindergenerates
data so that all the main screens appear to be
operational. Any changes made to the contrast,
backlighting, alarms or the display setup are saved.
NAVIGATE screen (seesection3-6)
Prominently displays the water depth as a digital
readout. The corresponding bottom trace is also
shown. These two complimentary features are
particularly useful for understanding depth trends
when travelling at speed.
It also displays the boat speed and the enabled
alarms.
DATA screen (see section 3-7)
The DATA screen displays the water temperature
and water temperature history over the last 40
minutes.Italsodisplaysthe boatbatteryvoltage,log,
engine-hourscounter, boat speed, water depth and
enabled alarms.
FUELscreen(requiresoptionalfuelkit)
(see section 3-8)
The FUEL screen displays the amount of fuel used
and fuel remaining, and the rate of fuel flow. It also
shows the boat speed, water depth and an
ECONOMY reading, which is the distance travelled
per unit of fuel used. The NAVMAN fishfinder
calculates this from the boat speed and fuel used.
Thebigger the number, the betterthe fuel economy.
Adjust the throttle and trim to achieve the best fuel
economy.
SETUP menu (see section 4)
Use this option to customise the FISH 4200 to suit
the boat and individual preferences.
RANGE menu (see section 3-9)
Usethisoptionto selecteitherAutoorManualRange
and to change the selected depth range.
HISTORY screen (see section 3-1)
Displaystheechoesreceivedovertime,withthemost
recent events on the right of the screen. Use this
screen when travelling to show the bottom so reefs,
wrecks and fish can be found.
ZOOM screen (see section 3-2)
This screen is split into two parts. On the right is the
Full Range Section which shows part of the
HISTORYScreenandtotheleftistheZoomSection.
Usethisscreenfor takingacloserlookatinteresting
underwater features.
SONAR screen (see section 3-3)
Displays the strength and depth of the echoes
returnedfromeachultrasonicpulse.The depthrange
is displayed in the lower right corner. This screen is
apowerfulaid,idealforshowingthebottomhardness
and the fish species.
This screen can also be used to adjust the display
shading on the HISTORY and ZOOM screens.
3 Operation
2-1 Simulation Mode ToturntheSimulationmodeon,powertheFISH4200
off, disconnect the blue transducer plug at the rear
of unit, then turn the power on.
To turntheSimulationmodeoff,powerthe fishfinder
off,reconnectthe blue transducer plug at the rear of
the unit, then power the fishfinder on.
MAIN MENU screen
The FISH 4200 is menu driven. Press to
display the MAIN MENU screen.
Press or to highlight
an option, then press
to select it.
TheMAINMENUoptions
are summarized below
andfullyexplainedinthe
following sections.
EnabledAlarms
(displayed on all screens)

8NAVMAN FISH 4200 Installation and Operation Manual
Alarmscanbeenabledtoautomaticallydetectcertain
conditions, such as the water being too shallow. The
trigger settings for the alarms can be defined to suit
the boat and individual preferences.
The FISH 4200 has seven alarms,TOO SHALLOW,
TOO DEEP, FISH ALARM, TEMP VALUE, TEMP
RATE, LOW BATTERY and LOW FUEL.
The alarm symbols and beeper cycles for all of the
alarms are shown in section 4-1. The FISH ALARM
is three short beeps, theTOO SHALLOWALARM is
arapidcontinuousbeepwhileallothersareaslower
continuous beep.
When an alarm condition is met, then:
· the beeper sounds.
· theALARMS menu is displayed on the
screen with the activated alarm(s) flashing.
Press any key to acknowledge the alarm, stop the
beeping and remove theALARMS menu. This does
Select MAIN MENU - HISTORY to display the
HISTORY screen.
The HISTORY screen displays the most recent
echoes on the right of the screen and the oldest
echoes on the left. These eventually disappear off
the screen.
Theverticalbarontheright edge of the screen is the
zoom bar. This shows the zoom range.To adjust the
zoom range see section 3-4.
3-1 ALARMS not disable the alarm. The symbol will continue to
flash until the alarm condition is no longer present.
Alarmsautomatically re-enable
The TOO SHALLOW, TOO DEEP, LOW FUEL and
LOW BATTERY alarms automatically re-enable
when the value moves outside the alarm trigger
setting.
The TEMP VALUE alarm automatically re-enables
when the temperature is more than 0.45°F (0.25°C)
above or below the alarm trigger setting.
The TEMP RATE alarm automatically re-enables
when the rate of temperature change falls below the
triggersetting bymorethan0.2°F (0.1°C)perminute.
Enabling Alarms and Changing Trigger
Values
Seesection4-1forinformationaboutenablingalarms
and changing the trigger values.
3-2 HISTORY screen operation the boat. This means that the HISTORY screen
display moves across the screen more quickly than
when the boat is travelling in deep water. In deep
water, the echoes take longer to travel between the
objectsand the boat,producingadisplaythatmoves
across the screen more slowly.
Note 1: Different fish symbols can be selected (see
section 4-4).
Note2:The depth ofbottomcanbeadjustedfor keel
offset (see section 4-8).
Range
Range is the depth of water displayed vertically. The
NAVMAN fishfinder has two range modes, Auto
Range and Manual Range:
· InAuto Range, the fishfinder adjusts the depth
range automatically so that the bottom is always
shown in the lower part of the screen.The use
ofAuto Range is recommended.
· In Manual Range, the fishfinder shows only a
selected depth range. In areas of rapidly
changing bottom depth, such as the sea floor
around pinnacles, it can be useful to prevent
the screen from rescaling to always show the
bottom. If the bottom is deeper than the
specified depth range, it will not be shown on
the display screen.
To change the range mode, see section 3-9.
TheHISTORYscreendoesnotshowa fixeddistance
travelled by the boat; rather, it displays what has
passedbelowtheboatduringacertainperiodoftime.
Theactual displaydependsuponthe boatspeedand
the depth of the water.
Astheboattravelsthroughshallowwater,theechoes
haveless distance to travel between theobjectsand
Fish symbol
with depth
Selected depth range (0 to 150')
Alarms
Bottom
Zoom bar

9FISH 4200 Installation and Operation Manual
NAVMAN
Changing the Gain Mode
Gain (sensitivity) controls the amount of detail
displayed on the screen. The FISH 4200 has two
gain modes,Auto Gain and Manual Gain:
· InAuto Gain, the gain is automatically adjusted to
compensateforwaterdepthandclarity.Theuseof
AutoGainisstronglyrecommendedwhenlearning
to use a fishfinder, or when travelling at speed.
· In Manual Gain, the user can adjust the gain to
compensate for water depth and clarity. Manual
settings range from 1 to 9. High settings may
amplify normal background noise until it
appears as random pixels on the screen. The
ideal setting produces only a small number of
random pixels. Normally the best results with a
fishfinder are obtained in Manual Gain but
practice and experience are required to
understand how to adjust the gain correctly.
TochangebetweenAutoGainandManualGain,hold
+or -. The Gain mode will be displayed briefly at
the bottom of the screen.
When in Manual Gain the gain symbol is shown
at the top of the display, followed by the gain level.
Press +to increase the gain level or press -to
decrease the gain level.
FishArches
In ideal conditions and with Fish symbols turned OFF,
afishpassingthroughthecone-shapedultrasonicpulse
is displayed on the screen as a fish arch:
As the fish enters the weak edge of the sonar cone it
generates a weak return signal that turns on the first
pixelonthefishfinderscreen.Asthe boatmovescloser
to the fish the distance between the transducer and the
fish reduces and the return signal is displayed at
progressively shallower depths, producing the start of
anarch.Whenthefishisdirectlybeneaththetransducer
andinthemiddleofthebeamthenthereturnedsignalis
Fishdetectionanddisplay
Thefishsymboloptioncanbecustomized,orswitched
offaltogetherso that theechoes are notconverted to
fishsymbols onthescreen.Section4-4 explainshow
to do this. The differences between Fish symbols on
and off are:
Fish symbols ON
Using NAVMAN’s SBN sonar technology
the fishfinder analyses all return signals
and eliminates most false signals and
clutter so that remaining targets are most
likely fish. Depending on the strength of the
remaining signals, they are displayed as
either small, medium or large fish symbols
with or without depth. Whilst the SBN
processing is very sophisticated it is not
foolproof and there will be times when the
unit will not be able to differentiate between
large air bubbles, rubbish containing air,
fishing floats etc and genuine fish returns.
Fish symbols OFF
For experienced users this will always
provide the best information as every sonar
return signal is displayed, whether it is
surface clutter, a thermocline or a fish.
even stronger so the arch becomes thicker.As the fish
passes out of the cone the reverse happens with a
progressivelyweakerand deeper return.
In reality there are many reasons why fish arches
can’t be seen. For example:
· Poor transducer installation - please refer to
the Transducer Installation Guide.
· If the boat is anchored then fish will tend to
show on the display as horizontal lines as they
swim into and out of the transducer sonar
beam. Slow speeds in deeper water give best
fish arch returns.
· Range is important. It will be much easier to see
fish arches when using NAVMAN’s split screen
zoom mode to concentrate on a particular
section of water rather than just displaying
everything from the surface to the bottom.
Zooming increases screen resolution and is
necessary for good fish arches.
· It is almost impossible to get fish arches in
shallow water as the transducer sonar beam is
very narrow near the surface and fish do not
stay within the beam long enough to display an
arch. Several fish in shallow water tend to
display as randomly stacked blocks of pixels.
3-3 HISTORY screen interpretation

10 NAVMAN FISH 4200 Installation and Operation Manual
Thefollowing pictureshowsthe HISTORYscreenwith
the fish symbols turned off:
Single fish
Large school of fish
Small school of fish
Bottom
Strengthof returned echoes
The shading indicates differences in the strength of
the returned echo from the bottom. A black pattern
indicatesastrongecho,andlightgreyindicatesaweak
echo. Fish symbols are always shown in black.
Thestrengthofthereturnedechovarieswithseveral
factors, such as:
· The size of the fish, school of fish or other
object.
· The depth of the fish or object.
· The location of the fish or object. The area
covered by the ultrasonic beam is
approximately cone-shaped and echoes are
strongest in the middle.
· The clarity of water. Particles or air in the water
reduce the strength of the returned echo.
· The composition or density of the object or
bottom. Mud, weed and sand bottoms tend to
weaken and scatter the sonar signal, which
results in weaker returns. Rock or coral
bottoms concentrate the return signal for
strong returns.
Note: thatplaninghullsat speedproduce airbubbles
andturbulentwaterthatbombardthetransducer.The
resulting ultrasonic noise may be picked up by the
transducer and obscure the real echoes.
Shadows
Shadows are areas where the ultrasonic beam cannot ‘see’. These
include hollows on the bottom or beside rocks and ledges where the
strong echo returned off the rock obscures the weaker echo of the fish.
When looking for small objects including fish, users should consider
that there are places where fishfinders cannot ‘see’.
These fish will be hidden in the bottom echo.
Shadow - where objects are hidden in the bottom echo.
Hard bottoms such as
rock or coral show as
wide bands at the
bottom of the screen
Soft bottoms such as
mud, weed and sand
show as narrow bands
at the bottom of the
screen
Kelp / weed
Large fish

11FISH 4200 Installation and Operation Manual
NAVMAN
1 minute ago 30 seconds ago Now
When the fish symbol option is
ON, any echo returned that fits
the profile of a fish is displayed
on the screen with a fish symbol.
Note: times indicated are for illustration only.
Air in water (e.g.
from wake)
1 minute ago Now
Time
NAVMAN fishfinders display the most recent events on
the right of the screen.
Moving boat
Stationary boat
When a boat is stationary, all bottom echoes will come from the same small
area of bottom. This will produce a flat bottom trace on the screen.
The appearance of the HISTORY and ZOOM screens
can be changed to suit individual preferences.

12 NAVMAN FISH 4200 Installation and Operation Manual
Select MAIN MENU - ZOOM to display the ZOOM
screen.
TheZOOMscreen is split intotwoparts.On the right
is the full range section (just like the HISTORY
screen) and on the left is the zoom section.
Full range section
Zoom section
Zoom bar
The full range section illustrated is 150 feet and the
zoom bar, located on the right edge of the screen,
showstheareathatisenlargedinthezoom section,
in this case the section between 50ft and 100ft.
The zoom section shows the area of interest (such
as fish or features close to the bottom) in greater
detail than the HISTORY screen.
BottomLock
The zoom bar is normally locked to the bottom
(Bottom Lock) so that the bottom is always
displayed in the zoom section, regardless of
changes in depth.
To turn Bottom Lock off, press then move the
zoom bar to the desired position with or .
To turn Bottom Lock on, move the zoom bar down
until it touches the bottom and the message
“BOTTOM LOCK ON” briefly appears.
If Bottom Lock is off and the bottom rises to meet
the zoom bar, the zoom bar will temporarily track
the bottom. This condition will cease when the
depth exceeds the original depth of the zoom bar.
Changing the Zoom
To increase magnification (make the zoom bar
smaller),press .Todecreasemagnification(make
the zoom bar bigger), press .
Alternatively, the zoom bar can be adjusted in the
HISTORYscreen before switching to ZOOM.
3-4 ZOOM screen
SelectMAIN MENU-SONARto displaytheSONAR
screen.
Thisis apowerfulfeatureand withsomeexperience,
this screen can be used to identify both the type of
bottom and the fish species.
On the Sonar Echo section on the right side, the
strengthofanechoataparticulardepthisshownby
ahorizontallineatthatdepth.Astrongechoproduces
a long line, whereas a weak echo produces a short
line.BelowtheechoesthescreenshowstheShading
Bar.Thisdisappearsfromviewafter afewseconds,
but just press to re-display it.
Theleft side ofthescreenistheFish Historysection.
Using the Shading Bar as a control, the fishfinder
interprets the echoes shown on the Sonar Echo
section and uses this information to draw the Fish
History section.
Recognising the Type of Bottom
The bottom trace is the strongest echo shown in the
lower part of the left side of the screen.
A bottom trace with a wide black layer is indicative
of a hard bottom, because a hard bottom returns
strong echoes. Conversely, a soft bottom produces
medium or weak echoes, which are shown by a
narrower trace.
Small strong echo
(e.g. fish). This
usually flashes on
and off as the
ultrasonic pulse
strikes the fish.
Large strong signal
(e.g.bottom)
Shading Bar
Recognising the Type of Fish
Different species of fish have different sizes and
shapes of swim bladders. The air in the swim
bladderreflectstheultrasonicpulse,sothestrength
of the echo varies between fish species according
to the size and shape of the swim bladder. The
sonar display on the FISH 4200 is 70 pixels wide,
so it can show 70 levels of return echo strength,
which is a powerful feature.
When fishing among a school of fish and catching
them, note the fish species and the strength of the
echo that it returns on the fishfinder on the Sonar
Echo screen. Then, the next time that particular
3-5 SONAR screen

13FISH 4200 Installation and Operation Manual
NAVMAN
return on the fishfinder is seen, it is likely to be the
same fish species.
Adjustingthe Shading Bar
The Shading Bar is displayed as a horizontal bar
in the lower half of the screen. Adjust the Shading
Bar so different strength echoes have a different
shade on the screen. Weaker echoes can be
shown as light grey, and the strongest echoes
shown as black.
IncreasetheblackpartoftheShadingBarbypressing
if there are too few long (strong) echoes being
displayed in black.
Decrease the black part of the Shading Bar by
pressing iftherearetoomanylong(strong)echoes
being displayed.
Manual Gain
When Manual Gain is selected, increasing the gain
setting will result in more detail being shown on the
fishfinderdisplay. Decreasing the gainwillreduce detail
beingshown.See‘ChangingtheGain Mode’ in section
3-2 for more information on changing Gain settings.
Gain setting
These echoes will be
shown in grey on the
Fish History section.
These strong echoes
will be shown in black
on the Fish History
section.
The weak echoes within
this white section of the
shading bar will not be
shown - they are below
the threshold of where
the shading begins.
3-6 NAVIGATE screen
Select MAIN MENU - NAVIGATE to display the
NAVIGATE screen.
The NAVIGATE screen displays useful information
while travelling at speed. It prominently displays the
water depth, the boat speed, the bottom profile and
any alarms that are enabled.
IncreasingGainbypressing
+will move the edge of the
light grey bar to the left and
result in weaker echoes
being displayed in the Fish
History section. Pressing -
will move the edge of the
grey bar to the right.
Depth can be displayed in feet (FT), fathoms (FA), or
metres (M). Use the SETUP - UNITS - DEPTH menu
to select the required depth units (see section 4-2).
Speed can be displayed in knots (KN), miles per
hour (MPH), or kilometres per hour (KPH). Use the
SETUP-UNITS-SPEEDmenutoselectthedesired
speed units (see section 4-2).

14 NAVMAN FISH 4200 Installation and Operation Manual
Select MAIN MENU - DATA to display the DATA
screen:
A graph displays the surface water temperature for
thelast40minutesandisupdatedevery30seconds.
The current water temperature is displayed above
the graph and is updated every second.
3-7 DATA screen The temperature can be displayed in °F
(Fahrenheit) or °C (Celsius). Use the SETUP -
UNITS - TEMPERATURE menu to select the
desired temperature units (see section 4-2).
Alarmsthatindicateaspecifictemperature,orrate
of change of temperature, may be enabled (see
section 4-1).
Log. One of two distance logs can be displayed:
Trip Log or Total Log. Both logs are retained in the
FISH 4200 memory when the unit is switched off.
Use the SETUP- LOG menu to select the Trip Log
or Total Log (see section 4-6). The Trip Log must
be reset manually (e.g. to record total mileage
during a season, or the distance travelled on this
trip). Note that the units displayed on each Log will
correspond with the Speed.
Speed can be displayed in knots (KN), miles per
hour(MPH),orkilometres per hour (KPH). Use the
SETUP - UNITS - SPEED menu to select the
desired speed units (see section 4-2).
Battery
voltage
Depth
Speed
3-8 FUEL screen
To use the fuel display, the optional fuel kit must be
installed and the fuel data set-up (see section 4-8).
Select MAIN MENU - FUEL to display the FUEL
screen: If FUEL does not
appearon the MAIN
MENU screen, enable
it using the SETUP -
INSTALL option (see
section 4-8).
USED shows the total
fuel used since it was
resetto 0 bytheCLEAR
USED command (see
section 4-7).
REMAININGshowstheamountoffuelremaininginthe
fueltanks.
FLOWshowsthefuelconsumptionperhour.Fortwin
engine installations the fuel flow for each engine is
shown separately. This is useful for checking that
both engines are under the same load.
ECONOMY isthedistance travelledperunitoffuel
used.The NAVMAN fishfinder calculates this from
the boat speed and fuel used. The bigger the
number, the better the fuel economy. Adjust the
throttle and trim to achieve the best fuel economy.
SPEED is the current speed of the boat.
Thewaterdepthandtheenabledalarmsareshown
at the base of the screen.
Warnings:
Fuel economy can change drastically
depending on boat loading and sea
conditions.Always carry adequate fuel for
the journey plus a sufficient reserve.
Each time fuel is added or removed use
the fuel setup menu (see section 4-7) to
record the fuel or else fuel remaining and
the low fuel alarm will be meaningless!
Temperature
Temperature
Graph
Log
Engine hours
Enabled
alarms

15FISH 4200 Installation and Operation Manual
NAVMAN
Select MAIN MENU - RANGE to change the manual
range and adjust the selected depth range.
The range setup box is displayed. This shows the
depthofwaterdisplayedverticallyandtherangemode
setting.
3-9 RANGE menu NAVMAN’sFISH 4200 hastworangemodes,Auto
RangeandManualRange.TheuseofAuto Range
isrecommended.Seesection3-2formoredetails.
To change between Auto Range and Manual
Range, press .
The Manual Range mode offers the user a choice
ofpre-selectedwaterdepths.Use and todisplay
the options and select a water depth.
Press to exit.

16 NAVMAN FISH 4200 Installation and Operation Manual
Alarms can be
enabled to
automatically detect
certain conditions,
such as the water
being too shallow.
Trigger settings can
be defined to suit the
boat and individual
preferences.
4-1ALARMS menu
Symbol Alarm Beeper Alarm condition is
Name Cycle met when:
Temp 1/2sec thetemperatureequals
Value the alarm trigger value
Temp 1/2sec the rate of change of
Rate temperatureequalsthe
alarm trigger value
Too 1/5sec the depth is less than
Shallow the alarm trigger value
Too 1/2sec the depth is greater
Deep than the alarm trigger
value
Fish 3 short an echo matches the
Alarm beeps profile of a fish
Low 1/2sec the battery voltage is
Battery less than the alarm
triggervalue
Select MAIN MENU - SETUP to display the SETUP
menu:
4 SETUP menu Use the SETUP menu to customize the FISH 4200
tosuittheboatandindividualpreferences,asfollows:
· specify the trigger settings for the alarms (see
section 4-1)
· choose the units for depth, temperature, speed
and fuel (see section 4-2)
· turn the key beep on or off (see section 4-3)
· choose the fish symbol (see section 4-4)
· choose the contrast level (see section 4-5)
· select the Trip Log or the Total Log (see
section 4-6)
· zero Trip Log or zero all logs (see section 4-6)
· sets the fuel options: tank full, set remaining,
clear used (see section 4-7)
· specify number of engines and tank size (see
section 4-8)
· selectlanguage,setupthekeeloffset(seesection
4-8)
· calibrate speed and temperature sensors (see
section 4-8)
· calibrate the fuel level and the fuel flow (see
section 4-8)
Press or to highlight an option, then see the
following sections.
SelectMAIN MENU-SETUP-ALARMS todisplaythe
available alarms. Press or tohighlight an option.
When an alarm condition is met, then:
· the beeper sounds.
· theALARMS menu is displayed on the screen
with the activated alarm symbol(s) flashing.
Press any key to acknowledge the alarm, stop the
beeping and remove theALARMS menu. This does
not disable the alarm. The symbol will continue to
flash until the alarm condition is no longer present. Note:TheFISHALARMgivesonlythreeshortbeeps.
The beeper cycle is different for some alarms.All of
the alarm symbols and beeper cycles are shown:

17FISH 4200 Installation and Operation Manual
NAVMAN
Alarmsautomatically re-enable
The TOO SHALLOW, TOO DEEP and LOW
BATTERYalarms automatically re-enable when the
value moves outside the alarm trigger setting.
The TEMP VALUE alarm automatically re-enables
when the temperature is more than 0.45°F (0.25°C)
above or below the alarm trigger setting.
The TEMP RATE alarm automatically re-enables
whentherateoftemperaturechangefallsbelowthe
triggersettingbymorethan0.2°F(0.1°C)perminute.
FlashingLight and/or External Beeper
If a secondary alarm indicator is required, a flashing
light and/or external beeper can be installed.These
can be positioned anywhere suitable on the boat.
For installation advice see section 5-4.
Enabling Alarms and Changing Trigger
Values
Press or to highlight an alarm, then press to
select it. To enable or disable an Alarm, press to
switch between ON and OFF.
To set the trigger value for anAlarm, press or to
increase or decrease the trigger value.
The alarm trigger value is retained even when the
alarm is disabled.

18 NAVMAN FISH 4200 Installation and Operation Manual
Select MAIN MENU - SETUP - UNITS to define the
units for depth, temperature, speed and fuel.
4-2 UNITS menu SPEED
Can be displayed in knots (KN), miles per hour
(MPH), or kilometres per hour (KPH). Press to
select the required speed units.
Note: Distance units will change automatically to
match the speed units.
FUEL
Canbedisplayedin litres(L),USGallons(USGAL),
or Imperial Gallons (IMPGAL). Press to select
the required fuel units.
4-3 KEY BEEP
Select MAIN MENU - SETUP - KEY BEEP to enable
or disable a single beep that audibly confirms a
keypress.
Press toselectONorOFF. Thedefaultsettingis
ON.
Select MAIN MENU - SETUP - FISH SYMBOL to
displaythe fishsymboloptionsfor thescreendisplays.
There are three options. Press to select:
·OFF
· .
·,
OFF
Displays echoes as dots on the screen.
Displaysanyechoes returned thatmatchtheprofileof
a fish as a fish symbol in one of three sizes:
4-4 FISH SYMBOL Strongest echo
Averageecho
Weakest echo
Echoes which are not recognised as fish are
displayed as dots on the screen.
Displaysanyechoesreturnedthatmatchtheprofile
of a fish as a fish symbol in one of three sizes as
above. The depth of the fish is shown to the left of
the symbol. Echoes which are not recognised as
fish are displayed as dots on the screen.
SelectMAIN MENU -SETUP-CONTRAST to display
the contrast setting box and the current setting.
The contrast level can be set at any level between 0
and 16. The default setting is 6.
4-5 CONTRAST menu Press or toincreaseor decrease the settingto
the required level. Then press to exit.
Press or to highlight
an option.
DEPTH
Can be displayed in units
of feet (FT), fathoms (FA),
or metres (M). Press to
select the required depth
units.
TEMPERATURE
Can be displayed in °F
(Fahrenheit) or °C
(Celsius). Press to
select the required
temperature units.

19FISH 4200 Installation and Operation Manual
NAVMAN
Select MAIN MENU - SETUP - LOG to display the
available options.
Press or to highlight
an option:
LOG
Selects which log is
displayed on the DATA
screen, TOTAL or TRIP.
Press to choose
between TRIP or
TOTAL. Both logs are
retained in the NAVMAN
fishfinder but only the
selected log is
displayed.
4-6 LOG menu ZERO TRIP LOG
Resetting the trip log will return the trip log value to
zero. The trip log is retained in the fishfinder memory
so it retains the distance value if the fishfinder is
switched off during a trip. Therefore, the trip log needs
tobe resetmanuallyeachtime the user wishes to log
a trip.
Press or tohighlightZEROTRIPLOG,thenpress
to select it. The message box “ZERO TRIP LOG
YES” appears.
Press to selectYES or NO. Then press or
to reset the trip log and exit.
ZEROALL LOGS
Resetting both logs will return both the trip log and
the total log values to zero.
Press or to highlight ZERO ALL LOGS, then
press to select it. The message box “ZERO ALL
LOGS YES” appears.
Press to selectYES or NO. Then press or
toexit.
4-7 FUEL menu
Select MAIN MENU - SETUP - FUEL to display the
fuel options.
Press or to highlight
an option.
TANK FULL
Press to select YES
or NO. It is important to
select YES each time
that the tank is refilled,
otherwise the low fuel
alarm will not work
correctly. (Selecting YES
also automatically
updates the SET
REMAININGfuel
reading to equal the full
tankcapacity.)
SETREMAINING
Use this to change the remaining fuel value. Press
or toincreaseordecreasethe valueasrequired;
for example, after syphoning out some fuel or when
not filling up the tank to capacity.
CLEARUSED
Use this to reset the fuel used value to 0. Press to
selectYES or NO.SelectingYESwillresetthevalue
to 0.

20 NAVMAN FISH 4200 Installation and Operation Manual
Use this menu at installation time, to select the
languageandtoenterthekeeloffsetvalue,thenumber
ofengines and the fuel tanksize.The INSTALLmenu
can also be used to calibrate the water temperature
and boat speed.
SelectMAIN MENU-SETUP-INSTALLtodisplaythe
menu.
4-8 INSTALL menu
Water surface
Depth of transducer
Enter positive values to display depth as measured from a point above the transducer (e.g. water surface).
Enter negative values to display depth as measured from a point below the transducer (e.g. keel).
Negative value
Transducer
Note: Boat illustrated uses a through hull transducer
Positive value
Use Keel Offset either when the
transducer is located below the
water surface but a display of total
water depth is required, or when
depth of water below the boat’s
keel is required.
Press or tohighlight
an option.
LANGUAGE
The following languages
are available: English,
French, German,
Spanish,Italian, Dutch,
Swedish, Portuguese
and Finnish.
Press or to highlight
the selected language,
then press to save
andexit.
KEELOFFSET
Keel offset is the distance between the location of
the depth transducer and the point the displayed
depth is measured from.
Enter a keel offset value when the transducer is
located below the water surface but a display of
total water depth is required, or when the depth of
water below the boat's keel is required.
Press or to select KEEL OFFSET, then press
to display the keel offset box.
Negative values display the depth as measured
from a point below the transducer (e.g. keel).
Positivevaluesdisplaythe depthasmeasuredfrom
a point above the transducer (e.g. water surface).
Press or to increase or decrease the value.
CALIBRATION
See section 4-9 for a description of the calibration
menu options.
NUM.ENGINES
Usethistospecifythenumberofenginesonyourboat.
Press to select 0, 1, or 2. Note: selecting 0 will
remove the fuel options from the menus and turn off
all the fuel features.
TANK SIZE
Usethisto specify the capacityof the fueltank(this
is displayed in the units selected through the
SETUP - UNITS menu). Press or to increase
or decrease the value as required.
It is recommended that the fuel tank capacity is
measured by draining the fuel tank and then filling
it to capacity.After filling, note the reading from the
fuel dispenser’s gauge. Note: Be aware of air
pockets, especially in underfloor tanks.