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