Lowrance X-50 User manual

INSTALLATION AND OPERATION MANUAL
X-50
LCG RECORDER
LITHO INUSA. 988-0105-11 Rev.A •LOWRANCE ELECTRONICS, INC.
12000 E.SKELLYDR.,TULSA, OKLA.74128
Cl
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NOTES
©Copyright
1987LowranceElectronics,Inc.AllRights Reserved.
45
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TABLEOFCONTENTS
NOTES Installation . 2
PowerConnections 2
TemperatureSensor
Installation 4
Noise 5
Keyboard Basics 6
Operation 8
On 8
Off 8
2nd 8
Clear 9
Auto 9
Sensitivity 9
Sensitivity—Automatic 10
Sensitivity—Manual 10
GRAYLINE 11
ChartSpeed 12
Scale Markers 13
Range 14
LowerLimit—Automatic 14
LowerLimit—Manual 15
UpperLimit 15
AutoRangewith ZoomBottomTrack 16
Digital 17
10th 19
Alarms 19
ZoneAlarm 20
ClearingZoneAlarm 21
Note
Key 21
DepthAlarm 21
Light 23
Discirmination 23
Temperature 24
Surface Clatity
Control (SCC) 25
Speed 26
Log 27
Feet, Fathoms,Meters 27
Pulse 28
Preset 28
Display Memory 29
Command Key—MENUS 30
FASTRAK 31
Orayline Checkerboard/Lines 32
Speaker Volume 32
ClearDistance Log 32
Narrow/WideAuto
RangeWindow 32
Digital Averaging 33
BatteryBackup as
ScaleOn/Off 33
Calibrate Speed 33
TestPattern 34
Keel Offset 35
TotalSystemReset 36
TransducersandCone Angles 36
Signal Interpretation 37
Fish Signals 38
Water
TemperatureandThermoclines 39
SurveyingaLake 40
BaitFish 40
HowtoObtainaSchematic 41
Specifications 41
44 1
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TheLowranceX-50LiquidCrystalSonar(LCG)isthemost sophisti- NOTES
cated and reliableinstrumentofits kind.Its high resolutiondisplaygives
thesharpest definition ever. Thisunitissoadvanced,you can just press
the"ON"buttonand letitdoallthework.However, takingmanualcontrol
enablesyoutoopen up awholeworld offeaturesnotavailablein other
sonars.
To
get
startedwith
yourX-50,first
readtheinstallationsection.Thisis
where itall begins,and improper installationcan cause problemsdown
theroad.Afteryou'vereadtheseinstructionsandinstalled
your
X-50,read
thereSt ofthismanualin detail.Themoreyouknow whenyouget
tothe
water,themoreyourX-50willdofor you.
INSTALLATION
Mounting
TheX-50canbeinstalled in anyconvenient
location,provided
there
is clearancewhen tiltedforthebestviewingangle.Roles in thebracket
base allowwoodscrew or through boltmounting.Thebracket can be
attached toaluminum
panelswith sheetmetalscrews.However, wesug-
gestplacing apiece
ofplywood onthebackofthinfiberglass panelsto
securethe
mountinghardware.Makecertainthereisenough
roombehind
theunittoattachthe
powerandtransducercables.
Aoneinch hole in the base ofthe
gimbalbracket allows thepower
andtransducercablestoberouted
upthroughthemounting
surface.After
the cables havebeen routed,thehole canbefilled withsilicone rubber
adhesive(RTV)toprevent water leaks.
Power Connections
TheX-50operates froma12volt
batterysystem. The powercablecan
beattachedtoanaccessoryorpower buss,
butif
you
haveproblemswith
electrical interference (random dotsor lines that show whenever the
boat'sengineoranaccessoryis
on), thenattachthecabledirectlytothe
battery
Thepowercablehastwosets ofcables.Onesethasthered power
and black
ground wires forconnectiontothe12voltbatterysystem. The
otherhasaconnectorforthetemperatureprobeand theoptionalspeed
sensor.Seetheowner'smanualenclosedwiththe LSS-5 speedsensorfor
installationinstructions.
2 43
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NOTES The
power cablehastwowires, red isthepositiveleadand blackis
negativeor ground. An in-line fuse holder containing a 4 amp fuse is
suppliedwiththeX-50c This attachestothered wireonthe power cable
withthe
crimpconnector.Theotherend ofthefuse holderattachestothe
battery
oraccessorybuss.ifthecable isnot
longenough,spliceordinary
#18 gaugewire onto itBe certainthat
the
fuseholderisasclose tothe
powersource (battery
oraccessory buss)aspossible.Thisprotectsthe
powercable andyourX-50in theeventofashort.TheX-50isprotected
fromaccidentalpolarityreversalsand willnotbeharmed ifthewires are
reversed. (However, the unitwill not work until the correctpolarity is
applied.)
Figure1
42 3
F0v18r Cabk
SpUta
Terrp
ersar
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TEMPERATURESENSORINSTALLATION
Thetemperaturesensorshouldbemountedin alocationthatallows
contactwith
thewateratalltimes. The
diagramin Figure
2showsa
typical
location.Once asuitable
placeisfound,mountthesensortothehull with
two #8stainlesssteelscrews.Abovethewater linedrill a¾"holeforthe
connector topassthrough. Route the cableviatheshortestpath tothe
X-50's powercable.Plugthe sensor's cableintothein-lineconnectoron
theX-50'spower cable.NOTE:Ifthe
speedsensor isalsoinstalled, plug
thetemperature sensor intothespeed sensor's in-lineconnector,then
attach the speed sensor's plug to the in-line connector on theX-50's
powercable.See figure3fordetails.
Figure2
TEMPERATURESENSOR
SPECIFICATIONS
Dimensions
Weight
Transmitter
Output
Power
(typical)
Receiver
Sensitivity
Operating
Current
OperatingVoltage
NumberofPixels
7"Hx8.8"Wx3.7"D
2.6pounds
192 kHz
3000watts(peak topeak)
375watts(RMS)
192
vertical
64horizontal
12,288
total
4 41
-Povier Cabt
Figure3
Sersor
Speed
500ma
9-15vdc
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Thetemperature ofwater in thelake isseldomconstantfrom topto
bottom.
Layers
ofdifferenttemperaturesform,andthe
junction ofawarm
andcool layer ofwateriscalledathermocline.The
depthandthicknessof
the thermoclinecanvary with the season ortime ofday. In deep lakes
there
maybetwoormoreatdifferent depths.
Thermoclinesare important
tofishermen becausethey are areaswherefish areacti ye.Manytimes
baitfishwillbeabovethethermoclinewhilelargergamefishwillsuspend
in orjustbelow it.
TheX-50candetectthisinvisible
layer
inthe
water,
butthe
sensitivity
willprobably havetobeturneduptoseeit
A knowledge ofthewatertemperatures
various fish prefer, and in
which theyusuallyremain, helpsyouget themostfromyourX-50.
SURVEYING ALAKE
Themostsuccessfulanglersonanylakeorreservoirarethosewho
fish itday after
day
and year afteryear untilthey learnthehot
spotsthat
produce
fish consistently.Theydiscover
throughexperiencewhere,andat
whatdepth, they can expect to find the kind offish theywantat any
season.And they realizethattheseproductiveareas changethroughout
the
yeardepending
onwater level, temperature, food,and otherfactors.
Withtheaidofthe
X-50,anyonecaneliminate
guessworkand con-
centrateontheareaswherefishare likely
tobe-evenifitsthefirsttimeon
thelake!
Themostefficentwaytobecome
aquainted
witha
bodyofwateristo
surveyitwith your
X-50.Startoutwith amapofthe
lake,ifpossible,and
indicatethepromisingspotsin relationtolandmarksonshore.
Keep
afewLowranceFish-N-Floats in the
boat,readytotoss over-
board.WhentheX-50indicatesaschoolof fish,throwthe
buoyout.The
string will unwind until the sinker hits boftom. Then, because of the
marker'sflat shape,it won'tunwind any further. With the school thus
marked,
youcanmake your
turnandcomebacktofish in exactlythe
right
spot.
Thisisessentialwhen
you'refarfromshoreona biglake.Unless you
marktheschool of fishwhenyou'reover it, youmaynotbeabletofindit
again.
BAIT FISH
The importance of baitfish to successful fishing can't be over-
emphasized. Theyarethe principlefood ofallgamefish in mostwaters.
Baitfish are theplanktonfeedingforagefish, suchasminnows and
shad. Baitfish can also be theyoungofgamefish, such as crappies,
bluegill,
and bass.
Most baitfishare concentratedwithin fivefeet ofthe surface where
sunlight promotesthegrowth ofthe planktonon which theyfeed. One
methodoffishing istousetheX-50tofindthe baitfish firstAschool of
baitfishwilllooklike
a
"cloud"ontheX-50'sdisplay.Usually,gamefishwill
benearby, oftendirectly beneaththeschool ofbaitfish.
40
TRANSDUCER
Installation
instructionsforthetransduceraresuppliedwiththetrans-
ducer in aseparatepackage.
Pleasereadtheinstructionscarefullybefore
youstartinstalling
thetransducer.
NOISE
Electricalnoise
pickedupbythe power cablecanbeminimizedby
routingitaway
fromother
possiblesourcesofelectricalinterference.
One
ofthe largestnoisegenerators is theengine'swiring hamessthat runs
fromtheenginetotheinstrument
panel.Thisharnessusuallycontainsa
wire forthetachometer whichradiatesSF (radiofrequency)energy. For
bestresults, keepthe
power andtransducercables away
fromtheengine
wiring.Also,bilgepumpwiring cansometimesradiatenoisesotry
tokeep
theX-50'scablesaway
fromthosewires.
VHFradio antennacables radiateSF energyathigher power levels
than even theengine's wiring harness.It isvery importantto keep the
X-50's power and transducercables asfaraway aspossible from VHF
radioantennacable.
Ifthereisnonoise—interference—on
theunitwhentheboatissifting
stillwiththe
enginerunninginneutral,
butinterference
beginsatslowboat
speeds,worseningastheboatspeedincreases,
then aprobable causeis
acoustic noise, or cavitation. This noise is not electrical, but rather
mechanically
inducednoisefromthetransducerUsually, acousticnoiseis
createdby airbubblespassingover
thefaceofthetransducer.Asaboat
travelsfaster, more airbubblesare createdwhichgeneratenoise onthe
display.
Toeliminatethisproblem,readthetransducerowner'smanualfor
propermountingtechniques.
5
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KEYBOARD
BASICS Ifapartialarchoccursmostofthetimeonyour unit
(themarkcurves
up, butnotbackdown, or vice-versa) it could bethetransduceris not
pointedstraight
down,Ifthetransducerismountedonthe
transom, adjust
ituntilthefishshowthedistinctivearch.This
may
takesometrialanderror
________________ untilthe correctmounling
isachieved.
Remember, theremustbesomemovementbetweentheboatandthe
fish todevelopthearch. Usually this meanstrolling atvery slowspeeds
with
themainengineingear ataminimum throttlesetting.
The
depthofthewaterwillaffectthesizeandshapefish arch dueto
theconeangle diameter. Forexample, ifthecone passesover afish in
__________ _______ shallowwater, the
signaldisplayedonthe
X-50maynotarchatall,dueto
thenarrow conediameterandtheresolutionlimitationsofthedisplay.
_______ Compared
toapapergraph, anX-50cannot show asfineofdetail
because the pixels (dotson the screen) are much largerthan apaper
graph'smarkings.
Therefore,
theX-50cannotshowfish archesaswellas
_______ _______ _______ graph, and itrequiresa bitmore workinitiallyto readand interpret
the
screenthana
papergraph.
_______ _______ _______ Verysmall fish probably will not arch atall, whilemediumsizedfish
will show apartialarch, orashape similartoan arch ifthey'rein deep
water. Large fish will arch, butthe sensitivityneedstobeturned up in
deeperwatertoseethearch.Becauseofwaterconditions,
suchas
heavy
surface clutter, thermoclines,
etc., the sensitivity sometimescannot be
turnedhigh enough toget fish arches.
Oneofthe best waysto getfish arches isto expand or "zoom" a
_______ _______ segment
ofthe
water,
forexample 40to60feetThe
smallerthe segment,
the
betterthescreenresolutionwillbe.Then, turn
upthe sensitivity as
high
_______________ aspossiblewithout
geffingtoomuch noiseonthescreen.Inmostwater
depths,
this method
shouldworktodisplayfish arches.
WATERTEMPERATURE AND THERMOCLINES
Water temperaturehas an important—if not controlling—influence
uponthe activitiesofallfish.Fishare cold blooded andtheirbodiesare
alwaysthe temperature
ofthe
surroundingwater.
During
thewinter, colder
waterslows down their metabolismsothat theyneedaboutafourth as
much foodastheyconsumein the summer
Mostfish don'tspawnunlessthewater temperature
iswithin rather
narrow limits. To find the different temperatures, the X-50's surface
temperaturedisplayisavaluableaid toyour
boat.Thisunitprovides
an
extremelyquickresponse
toidentifying thedesired surface
waterspawn-
ingtemperatures
forvarious species. Troutcan'tsurviveinstreamsthat
get
too
warm;
bassandotherfisheventually
dieoutwhenstockedin lakesthat
remaintoocold during the
summer.Whilesomefishhaveawider
temper-
aturetolerancethan others, each hasacertainrange
withinwhich ittries
to stay.Schoolingfish suspendedover deep waterlie atthe level that
provides
this
temperaturein
which,
weassume,they
arethemostcomfortable.
6
ET1
t.r:ysa
SLOW stop FAST
LRECALL RESUME STORE
e]I?if.]fl:p
DIGITAL SHALLOW DEEP
10TH ALARM ALARM
fl4•I1" IsUl
ShALLOW '"I
SET t LPRESET
DEEP 'tj;--' IDIi1
SET DISPLAY tOOMMANDJ
1 2 3
TEMP °F/°C 5CC
4 5 6
SPEED 01STLOG M/KT/I(
7
SIZE 8 BTMTRK 9
FT/FA/M
UPPER
LIMIT 0
PULSE LOWER
LIMIT
SENSITIVITY Thesekeys
control the
graph'ssensitivity.
The
digital'ssensitivity
is
always
automaticallyadjusted,while
thegraph'ssenstivity
isauto-
matiCallyadjustedwhentheX-50
isinAutomatic.Thereceiver
sensitivityhas31 steps
which
allows adjusbnent forawide
rangeofconditions.Theleft
arrow
key
decreasesthe
sensitivity,
theright arrow
key
increasesit.
ZONEALARM This groupof —
keyscontrol the X-50'szone
alarm. Itcan beusedasa"fish
alarm" thatwillsound iffishora
schooloffishentersThe alarm
zone.Thebottomsignal will
alsosetoffthealarm.
0.9 These
keysallow the—
entryofnumbers0
through9.
someofthesekeyshave more
thancnefunction (printed
in
white letters)and canbe
accessedusing the2nd key.
Whenanumerickeyispressed,
thenumberwillbe
displayed
in
a
window nearthe
topcenterof
thedisplay.
CAR TheCAR
keys
erasesthelast
keypressed.
It
can alsoerase otherfeatures,
aswillbeseenlater
Figure4
L211t1
[0FFI[ ON]
MADE IN U.S.A.
OFF ON Thesekeystum
theX-50offandon.Toturn
it
on,simplypresstheON key. To
turnit
off,presstheOFFkey. A
beep
willoccur
every
time a
key
is
pressed.
This istheX-50s
weyoftefiyoj thatithasaccepted
a
command.
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FISHSIGNALS IF$IlL'AIl'
I— GRAYLINE
SET
TOP
RECALL I RESUME I
up]
r
FDIGITAL
10TH
cm
SHALLOWI DEEP 1
ALARM ALARM J
-a
SHALLOW
SET ti
I
+ IIDISC 1
DISPLAY J
ICOMMA1.!
DEEP
SET
1 2 3
TEMP SOC
4 5
DISTLOG 6 M/KT/K
7 8 9
FT/FA/M
UPPER
LIMIT 0
PULSE LOWER
LIMIT
[CLEARj[
10F\1[ ON]
MAD IN U.S.A.
UPPERLIMIT LOWER
LIMIT
The
upperandlowerlimit
keysprovidethe way toselect
differentdepth rangesbypress-
ingthedesireddepthand then
pressing
theapproprieteupper
orlower
limit key. The
upper
limitkey setsthe
depth forthe
topofthe
display,
whilethe
lowerlimit keydetemines the
depth displayed
atthebottomof
thescreen.
38 7
keyallowsyou toadjust
the
grayline levelusingthesenstiv-
itykeys.
There are31steps ot
GRAYLINE
adjustment
—CHART Thechart
speedis
controlled bythe
CHART
group
of
keys.
TheX-50has 10chart
speeds,rangingfrom veryslow
tofast Pressing theFAST
key
speedsup
thechart. The SLOW
key
decreasesitThechart
speedcanbe stoppedand
startedagain using theSTOP
RESUME
key.
DIGITAL SONAR TheX-50is
reallytwosonarsinone hous-
ing.Themost obviousisthe
graph,
designed toshowall
retumechoes. Theothersonar
isthedigital,designedforonly
onepurpose: toshow the bot-
tomdepth.Thesekeysturnthe
digitaldisplayofforonandset
\
thedigital alem,functions.
DISC Discriminationisen
adjustablenoiserejectionsys-
tem. Thelevelsof
adjustment
are0
(off)through 10.
AUTO TheAUTO key
switchestheX-50inoroutofthe
automaticmode.WhentheX-50
isfirstturnedon,it
automatically
adjuststhe sensitivityand range
selection,andtheword AUTO"
willbe
displayedintheupper
leftofthescreen.
Bypressing
theAUTOkey,you cantake
control ofthe
X-SD, making
manualadjustments asdesired.
When theX-50isintheauto-
maticmode,theword"AUTO'
willbedisplayed
underthesen-
sitivity
barnearthe
top
ofthe
display.
.._—GRAYLINESET Pressing this
FAST
STORE
ThesignalsdisplayedontheX-50by fish canbeidentifiedby
var-
iOUsshaped markings in certain patterns,
asopposedtorandom marks
Created bynoise,orthe solid,continuous
markings
madeby
thebottom.
Individual
fish can,attimes, bedistinguishedby
acharacteristic arch
that
separates
themfromtheir
stationarysurroundings.
Thereasonforthis
isshown below.Thedistancetoafishwhen itmovesintothesonar'scone
ofsound isshownas "A" Figure32. When the fish has movedinto
the
center ofthecone,
thedistancetoitwillbeshorter,"B", and asitmoves
outofthecone,thedistancewillincreaseagain
asshown in "C".
B
a
A—' .C
N
N
N
Figure5
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OPERATION Generally,wide cone angle transducers (20 degrees) are ideally
When theX-50isfirstturnedon, itautomatically findsand displays
thebottomdepth,
setsthe
sensitivitylevel, and much more. Ifdesired,
the
X-50canbeleftinthisautomaticmodetofindfish andthebottom
condi-
tionsthey prefer. However,virtually every function of the X-50canbe
manually adjusted so that "fine tuning" of the unitto the surrounding
conditionscan
bemade.Takethis manualoutonthewaterasareference
guidetohelpyouget
themostoutofyourX-50.
ON [ON]
TheONkey islocated in thelower rightcornerofthe
keyboard.
Itis
placed inthislocationsothatitcanbeeasily
found—evenatnight
Toturn
theX-50
on,press
theON key.Anaudiblebeepwillbeheardsignifying the
X-50 knows that a key hasbeen pressed. Thechart lights will begin
flashing,then stop aftersixseconds.Thechartwillbeginscrolling across
the
displayandthenumber"0"willflash.Thisnumberisthe
digitalbottom
depth display.After the unit has found the bottom, the depth will be
displayed.
OFF
2nd
[OFF 1
ToturntheX-50
off, simplypresstheOFFkey.
[2ND]
TheX-50hasmany differentfunctions,butonly alimitedamountof
space
forkeys. Theretore,
someofthe
keyshavemorethan onefunction.
Eachkey'sprimaryfunction isprinted inone
color,
whileit'ssecondfunc-
tion is printed in white.The "2nd" key must be pushed to access the
second functionprintedin whiteontheappropriate
key.
For
example,
theAUTOkey isalso labeled"LIGHT".If
youpressthe
AUTO key by itself,theX-50will betaken outoftheautomatic mode.
However,
if
youpress
the2nd key, then theAUTO
key,theX-50'slights
will
beturned on. The2ndkey just reassigned the
meaning
oftheAUTOkey
fromAUTOtoLIGHT.
suited foroperatinginshallow tomediumwaterdepths.The20 degree
coneangleallowsyoutoseemore oftheunderwaterworld. In 15 feetof
water the 20 degreecone covers an areaabout six feet across.The8
degreetransducercoversonly
aboutatwofootcircle.
The20 degreetransducerisalmostalwaysthebesttousein fresh
water,
whilethe8degree
transducerisusedmostly in saltwaterInadeep
water environment,(300feet—freshwater,100 feet—saltwater)the nar-
row cone angle is more desireablebecause it can penetrateto much
deeperdepthssincethesoundenergyisconcentratedin a
smallerarea.
Both8degreeand20
degree
transducersgive accuratebottomread-
ings,
even
thoughthebottom signalismuchwideronthe20degree
model
becauseyouareseeing moreofthebottom.
Remember, theshallowedge
ofthe
signalshowsthetrue depth. Therestofthesignaltells youwhether
youare overrocks, mud,etc.
Transducersonsaltwaterboatsneedtobepainted with athincoatof
anti-foulant
painttopreventorganisms
fromgrowing.If
unchecked,
barna-
clesand other marine
growth willcause adecreaseinthetransducer's
sensitivity. Do notuseametalbasedanti-foulantpaint asitwilldecrease
thetransducer'ssenstivity. There are special anti-foulantpaints specifi-
callydesigned fortransducers. They'rereadily availableat mostmarine
dealers.
SIGNAL INTERPRETATION
Becauseyour X-50isboth extremely sensitiveand powerful, itcan
giveyouanaccuratepictureofthekindofbottomoverwhichyour
boatis
passing. Abottomoffirm sand,gravel,shell, orhard clay returnsafairly
wide
signal.If
theautomatic
sensitivity
isturnedoffand thesignalnarrows
down, it meansthat you have movedover amud bottombecausemud
absorbsthesoundwaveand retumsaweaksignal.
Turn
upthe sensitivity.
GRAYLINE is especiallyeffectivein determiningthecomposition ofthe
bottom.Witha hardbottom signal, thegraylinewill be wide.As theboat
passes over the mud bottom,thegrayline will narrow down, or itmay
disappearaltogether.GRAYLINE works independentlyofthe automatic
function,soitcanbeusedevenifautomatic
sensitivity
ison.
Big
rocksorstumps onasmoothbottom
sendback
signals
abovethe
bottomlevel
signal. The heightofthe signaldepends
onthe
target'sheight
Asyouapproacha
post
oratree
stump,
itwillbeclearlyvisibleasashort
lineextending abovethebottom
signal.
Asteepslopereturnsawide
signal,the steeper
theslope, thewider
thesignal, withthe
signalreturnedfromahighunderwatercliffbeing
the
widest ofall.
Brush usuallylies on the bottom and shows up as clumps rising
abovethebottom
signal. Brush signalslooksimilartolargerocks,
however
their
signalisnotas strong
asrock.
8 37
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18=TOTALSYSTEM RESET
TheX-50 has an internal battery thatkeeps power supplied tothe
memorycircuits evenwhenthe power cableisremovedfromtheunit To
resettheX-50'sfunctionstotheir
factorysettings, usetheTOTALSYSTEM
RESET function.TheX-50willrestartasifpower hadbeenturned oftand
backonagain.
TRANSDUCERS
AND CONEANGLES
Thesoundwavesfrom thetransducerspreadoutintothewaterin a
cone shaped beam, much like the beamfromaflashlightThe angle
betweenthe outsideedgesofthecone iscalledthecone angle.
Lowrance offers a choice of transducers with either an 8 or 20
degreeconeangle that will interchangewith any ofthe 192 kHz sonar
products.In otherwords,any
Lowrancesonarinstrumentcanbeusedwith
anyLowrancetransducerofthesamefrequencywith noloss ofperfor-
mance.
However, theuseofanyothermanufacturers'transducerwillresult
in aloss ofperformance.
CLEAR
[CLEARI
Ifan incorrectkey ispressed, waitsixseconds and itwillautomati-
callybeerasedor"cleared."TheX-50 provides
afastermethodof
erasing
mistakes,
however.Insteadofwaitingsixseconds,
simplypress
theCLEAR
keyandthelastentrywill beerased.
Forexample, ifyou wishtoturnonthe lights, the
properkeys
topress
are2nd,AUTO. However, ifthe 0keywas accidentallypressed insteadof
the2ndkey,you can
presstheCLEAR key
whicherasesthe0andallows
youtostartover.
TheCLEAR keyalsoerasesorsetstozero otherfunctionsoftheX-50
including
SCCandDiscrimination.Astheotherfunctionsaredescribedin
this manual, the
CLEAR key's operation willbeexplainedin detail.
AUTO fAUTO
LIGHT
WhentheX-50isfirstturnedon,theautomaticmodeison.Toswitch
itintothemanual mode,presstheAUTO
key whichislocated abovethe
ON key. ThewordAUTO atthetop ofthe display will be erased,auto
sensitivityand auto ranging will both be cancelled and youwill have
complete manual control ofthe X-50.TheX-50Can be returnedtothe
automaticmode atanytime
bysimplypressing
theAUTOkeyagain.
SENSITIVITY
When firstturned on, the X-50is in the auto search mode. This
meansthe
sensitivity
and rangeareautomaticallyadjusted bythemicro-
computer
tofindandlockontothebottom.The
sensitivity
canbemanually
adjusted ifdesired whilein eithertheautomaticormanual mode to suit
conditions.
Thesensitivity level isdisplayedbyahorizontalbar atthetop ofthe
display.
Whenthesensitivity isatminimum, thebar is
very
shortAssensi-
tivity is increased,the bar will travel to the right, increasing in length
correspondingly.When the sensitivity is set to maximum,the bar will
extend across thetop of the display. There are 31 steps of sensitivity
adjustment.
36 9
Depth Cone Angle
Diameter
50 78. 188.
100 14 35
150 21 53•
2D0 28 71
Figure
31
50'
100'
150'
200'
8°at3db
•:11
I1IIL'4I
I'S
[T... IGRAYuNEI i_ij
SET
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Automatic Sensitivity 17= KEELOFFSET'
WhentheX-50isintheautomatic
mode,
the
sensitivity
ofthe
receiver
willbeadjusted abovetheminimum
requiredtopickupthebottom signal.
Thisenables the X-50to displayfish, structure,and other small targets
whilein theautomaticmode.
The
sensitivity
levelcan
bechanged whiletheX-50isintheautomatic
mode.Thismaybe desirableifthelevelofsensitivity chosenby theX-50is
notenough toshowfish orothersmalldetail. Ifdesired,anyamount of
sensitivityuptothemaximummaybeaddedorany
amountofsensitivity
downtotheminimum
maybesubtractedfromthecurrentsetting.
To adjust the sensitivity whilethe X-50 is in the automatic mode,
simplypresseitherthe right arrowkey>
toincreasethe sensitivity orthe
left arrow key Ctodecrease it. Holding thekeys down will increase or
decrease thesensitivity faster.Ifthevalue
goesbelowtheminimum,
the
X-50'saudibletonewill"flutter".Thesameistrueif
youtrytogoabovethe
maximumlevel.Asyou pressthearrow key, thesensitivity barwillmove
rightorleft, accordingtothe amountofsensitivity
chosen.TheX-50will
still automatically adjust thesensitivityas conditions change, but itwill
alwayskeepthe
amount
thatyou added orsubtracted.
Most sailboatshaveakeel or acenterboardthat extendsmany
feet
belowthesurface.
Manypowerboatswith displacement
hullsalsoextend
many
feetbelowthesurfaceofthewater. The
digitalsonarcalculatesthe
bottomdepth fromthetransducer'sface. Iftheboat hull sticks belowthe
transducer,then itcan run aground when the digital says there is still
clearance.TheX-50providesakeeloffsetadjustment
thatallowsforthe
depthcorrectionbetweentheface
ofthetransducerandthebottomofthe
hull.For example, ifthe bottomofthehullis
4
feetdeeperthan thetrans-
ducerlocation,thenthekeeloffset
ontheX-50canbeadjustedbypress-
ing17fromthemenuselection.Anewmenuwillappear:
KEEL
OFFSET IS
0.0 FT
ENTER
VALUE
INTENTHS
THENPRESS
Sensitivity—Manual Operation
At
times, itmaybedesirabletoturn the automaticfunctionsoffand
"fine tune"theX-50tothecurrentconditions.
Tomanuallyadjust
the
sensitivity,pressthe
AUTOkey
once,
and auto
sensitivity
willbeturnedoff. Theword AUTOatthe
topof
thedisplaywill
disappear,signifying
that theX-50isin themanual mode.Thesensitivity
cannowbeadjusted tothedesiredlevel.
Figure6demonstratesagraphwithtoolittle
sensitivity, while onthe
right,the sensitivity
isadjustedproperly;afish isnowvisible,
thesurface
clutter ismorepronounced,
and thebottomsignalhaswidened.
Whenthehorizontalbarreachesthefar righthandsideofthe
screen,
thesensitivitylevel is atmaximum.Ifhigh sensitivitysettingsareused,a
second bottom echomay appear.
Thisis normal and is causedby the
returningsignalreflecting
offthesurfaceofthe
water,
making
asecondtrip
tothe
bottomand backagain. Thisiscalled "second echo".
Occasionally,when high sensitivity
levelsareused,thedisplaywill
turnblack.Thishappens
whentherearelargeamountsofsurfaceclutter,
thermoclines, turbulentwater, or suspended particles suchas silt that
reflectthesonarsignal.
Thisdoesnot
damagethe unittocorrect it,simply
turndown the
sensitMtylevel.
To returnto theAutomaticmode, press theAUTO key. Remember,
bothautomatic
sensitMtycontroland autoranging
functionsareturnedoff
and onbypressing
theAUTOkey.
UPPER
LIMIT FOR
NEGATIVE
OFFSET
LOWER
LIMIT FOR
POSITIVE
OFFSET
Sincethehull in ourexample boatis4feet
lowerthanthe
transducer,
wewanttouseanegative offset.So,while
theabovemenuisstillonthe
screen, press
40.Thisisactually4.0feet.
(Ifyoujustpress4,
theoffsetwill
be.4orfourtenthsofafoot.) TheX-50willnow displaythedepthwith a
fourfootoffsetInotherwords,ifthebottomisfifty feetfromthetransducer
face,withafourfoot
negative
offsettheX-50willdisplaythebottom
depth
as46feet
10 35
OR
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*c
Run theboatata
steac'speedthroughameasuredmile.Attheend
ofthemile,check the
stopwatch
tosee how long ittook. Fromthat
you
can calculate the speed that the boat travelled. Ifthe speedometeris
correct,then nocorrection needstobemade.Ifthe speedometerreading
isoff,thenenterthe
percentage
thatitisoff.Forexample, ifthe
speedome-
terreads 5 percentfast,once youget
theabovemenu,press 5, UPPER
LIMIT. Thatwill give the speedometer
a 5% negative correction which
should causeittodisplaythe correctboatspeed. UllF9II!i
IGRAYLINEI _iøi._1
SET
GRAYLINE
TheGRAYUNEfunction
can beusedtooutlinebottomcontourwhich
mightotherwisebehiddenbeneathtreesorbrush.Itwillalsogve
cluesto
the
compositionofthe bottom,
i.e.determineifthebottomishardorsoft.A
hardbottom returnsa
verystrong signal causingawidegray line. Asoft,
muddyorweedybottomreturnsaweakersignalwhichisemphasized
with
anarrowgray line.
When theX-50 is firstturned on, the GRAYLINE level is preset.To
adjust it, presstheGRAYLINESET key.Theword"AUTO"in the upper left
corner ofthescreenwillchange totheword 'GRAY".Thesensitivity bar
now reads the level ofGRAYLINE in use. To adjust the GRAYLINE level
higher, presstheright arrow key in theSENSITIVITYsection onthekey-
board.To decreasetheGRAYLINE level,press the leftarrow key in the
SENSITIVITY section onthekeyboard. After
makingtheadjustments,
the
word"GRAY"will disappear aftersixseconds and thearrow keys will
reverttosensitivityadjustmentagain.
Anew menuwill appear: SPEED
CORRECTION
0%
ENTER
VALUE
INPERCENT
THENPRESS
UPPER
LIMIT FOR
NEGATIVE
CORRECTION
OR
LOWER
LIMIT FOR
POSITIVE
CORRECTION
15=TESTPATTERN ON
16=TESTPATTERN OFF
Atestpatternisstored in the X-50's memory thatcanberecalleaat
anytime. Itissimply
numbers0through 9andthelettersofthe
alphabetTo
displaythetest pattern,
once the menu
appears,press 15.Toturnthetest
patternoff,get
themenu, thenpress16.
34 11
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$ENSfliV!TY I
Figure8 GRAYLINE "orr" Figure 9 PROPER SETTING
8=ENABLEDIGITALAVERAGING
9=DISABLEDIGITALAVERAGING
Thedigital sonar in theX-50isa highlysensitivesonarthatgives
extremelyrapid updatesofthe water depth. Undermostconditions,
the
bottom contour changessorapidlythat thedepth displaycanappearto
"jitter". Inother
words,the display
willchange the
depthsoquicklythatit
can be difficult to determinethe actual bottom depth. To alleviatethis
situation,theX-50canaverage
thebottomreadingsand placetheresult
onthedisplay. WhentheX-50isfirstturned on,averagingisenabled.To
disable averaging,pressthe 9 key oncethe menu appears.To enable
averaging
once again,press the8
key.
10= BATTERY BACKUPENABLED
11 =BATTERY BACKUPDISABLED
TheX-50hasbattery
backedupmemory whichallowsittoretain all
settings
even ifthepowercableisremovedfrom theunit.Thebattery
can
beturned offorbackonatanytime. WhentheX-50isshippedfromthe
factory,
the
battery
isturnedon. To
turnitoff,press 11.Toturnitonagain,
pressiO.
—
Istow STOP FAST
[RECALL RESUME STORE
CHARTSPEED
When theX-50isturned on for thefirst time,thechartscrollsata
pre-determined speed. Ifa higherspeed isdesired, press and hold the
FAST keyin theCHART
sectionofthekeyboarduntilitrunsatthe desired
speed.
Toslowthe
display,pressandholdtheSLOW
key.Whenevereither
ofthesekeysare pressed, the
sensitivity
bar atthetopofthe
displaywill
change to a dashed line and the word "CHT" will replace the word
"AUTO"nearthetopofthe
display.Thedashed bar represents
thechart
speed.Ifyou pressand hold theFAST keyforexample,
thebarwill start
moving
tothe
right,signifying
thatthechartspeedisincreasing.
Thereare
10steps ofchartspeed. Whenthehorizontalbarreachesthe farrightside
of the screen, the chart speed is at its maximumvalue. TheX-50 will
"flutter"signifying themaximumchartspeedhasbeenreached.
litheautomatic mode or digitalfunction is on, themaximumchart
speedcannot beattained.
(Thechartbarwillstop twosteps fromthefar
right and theaudibletone will"flutter".) Turningboth thedigitalandthe
automatic mode offwill allow themaximumchart speed to beattained.
(Tenstepsofchart speedareavailableifthe
digitalandAUTOareoff,Eight
stepsofchartsspeedavailable
with digitalandAUTOon.)
12=SCALEON
13=SCALEOFF
The
upper
and lowerlimitnumbersonthe
rightsideofthe
display
can
beturnedonoroff
asdesired.WhentheX-50isshippedfromthe
factory,
thescalesareturnedon.Toturnthemoff,press
13afterthe
menu
appears.
Toturnthembackon again,press12.
14=CALIBRATESPEED
Due to variations in boat hulls and sensor mountinglocations,the
speedometerontheX-50mayneedto be calibrated.TheX-50allows
correctionstobeentered
using
theCALIBRATESPEED command.
Touse
it,press 2nd,DISC
(COMMAND)
untiltheCALIBRATE SPEEDfunctionon
themenuappears.
Then press 14.
12 33
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2= GRAYLINE
CHECKERBOARD
3= GRAYLINE
LINES
GRAYLINEcanbedisplayed onthe
X-50withacheckerboardpattern
orwithlines and spaces.Whenthe X-50isshippedfromthe
factory,
the
checkerboardpatternisenabled. To changeto lines,
press the3key.To
switch back,
pressthe2 key.
4=SPEAKERVOLUME
Thevolumeofthe
speaker
canbechangedbypressingthe4key.A
message
will bedisplayedon thescreen:USESENS. KEYS TOADJUST
VOLUME
(thesensitivitykeys
areusedtoadjust thevolumeofthe
speaker)
and the speaker will begin beeping. Pressingthe right arrow key will
increasethe
volume,
theleftarrowkeydecreasesit.The
sensitivity
barwill
movetotheright orleft, signifying
thevolumelevel.The
speaker
willstop
beeping
sixsecondsafterthelastkey hasbeenpressed.
5=CLEARDISTLOG
Thedistance logwill start operating
fromthetimetheX-50 is first
turnedon.Toresetthedistance
log
tozero,press the5
key
whilethemenu
isonthescreen.
6= NARROWAUTO RANGE
WINDOW
7=WIDE AUTO RANGEWINDOW
Thelimits thattheX-50will autorangecan bechanged ifdesired.
When theX-50 isfirstturnedon,thenarrow autorange is enabled.This
meansthatifthebottom signalgoes belowthe90% pointonthescreen,
theX-50will autorangeand placethebottomsignalatthe 50%point on
thescreen.Ifthebottomsignalgoesabovethe40%
position,the
X-50will
autorangeand place
itatthe80%
positiononthedisplay.
Thiskeepsthe
bottomsignalinthelowerhalfofthe
display,allowingyoutoseefishand
othertargets.
Thewideautorange willmovethebottomsignaltothe25%point
ifit
goesbelowthe90%point.Ifthebottom
signalgoesabovethe15% point,
then the X-50willautorange itbacktothe 80% point. This allowsthe
bottomsignaltotravelalmosttheentirevertical areaofthedisplay.
The
onlydisadvantage
tothisisthatechoesabovethebottom
signalcannot be
seenwhenthebottom
signalisnearthe top
ofthescreen.However, if
you
wishtoonly trackthe bottom signal,
whilekeepingtheautomatic range
changestoa minimum,
thenthewideautorange
windowwillbeuseful.
Tochange tothewide
autorange,pressthe7keywhilethemenu is
onthescreen.To changebacktonarrowautorange,pressthe6key.
To viewthechartspeedwithout
changing it, press 2nd,STOP/RE-
SUME.Thesensitivitybar will disappearand the chart speed bar will
replaceitforasixseconds.
Attimes itisdesirabletostopor"freeze" thedisplaytoexamine an
echobefore it scrolls offthe screen. Pressingthe STOP/RESUME
key
oncewillfreezethe
display.
Inthe
upperleftcornerofthe display,
theword
"AUTO"will change to "STOP"tosignify thatthe X-50is in the"freeze"
mode.Pressing STOP/RESUME
again
willstartthe
displaymovingatthe
last chart speed setting. Ifthe digital sonar is on, thebottom depth will
continuetobe
displayedonthescreen.The digitaldoes notstopwhenthe
chartisin the
"freeze"mode.
SCALEMARKERS
There are ten scale markers printed on both sides ofthe X-50's
displaytohelpyou
determinewhatthe
depthofa targetis. For
example,
if
therangeis0-60
feet,
and a
target(suchasafish)wasdisplayednextto
thefifthline,
then itis30feet
deep.(60
feetdivided by 10lines
=6feet
per
line. 5 lines times6
feetper line=30feetjThis methodworks nomatter
whattheupper and lowerlimits are,buttomakeiteasier useupperand
lowerlimits inmultiplesoften,i.e. 10,20, 30, etc.
32 13
SCALEMARKERS
Figure10
SCALEMARKERS
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To usethescalemarkerswitha
zoom,simply
subtractthe
upperlimit
fromthe lower limit, thendivide thatnumberby ten toget thenumberof
feetperline.Forexample, ifa
target
isonthethird line andthe
upperlimit
is120feetwithalowerlimitof160
feet,
then subtract120 from 160 which
equals 40. Togetthenumberoffeet per mark,divide 40feet by10 lines
whichequals4.Nowmultiply 4times 3(target isatthethird line)andyou
get 12. Add 120 (upperlimit)to 12 and the depth ofthe target is 132
feetdeep.
RANGE
WhentheX-50isintheautomatic mode, the
ranges
willautomatically
change to keep the bottom signal on the display as the bottom depth
changes.Attimes,however,itmay bedesirabletoexpandtherange or
zoomin ona
target.
Theupperlimitcanbesetfrom0to6490feetandthe
lowerlimit canbesetfrom10to 6500feet Anycombinationofthetwo
limitsmaybeused,
provided
thatthelowerlimitisnocloserthantenfeetto
theupper limit. Ifasegmentless than tenfeet is entered,the X-50will
'flutter"and the range willremainatthe
previoussetting.
(Note: Maximum depth capability will depend upon the water and
bottom
conditions,
typeof
transducer,
andquality oftransducerinstallation.)
LOWER
LIMIT
LOWERLIMIT
Automatic Operation
WhentheX-50isfirstturned on, itwillautomatically findanddisplay
the
bottomsignal,pickingalower limit
that
willputthebottom
signalin the
lower
portion ofthedisplay.
Asthebottomdepth changes, theX-50will
automaticallychange the lowerlimit to keep the bottom signal on the
display.
WhentheX-50
changes ranges
whileintheautomatic
mode, the
lowerlimit selected will always beamultiple often. In other words the
lowerlimitwillbeanumberthatendsinzerosuchas
ten,twenty,forty,
one
hundred,
etc.
Thelowerlimitmaybechanged whiletheX-50is in theautomatic
mode,howeverthelowerlimitcannotbesetshallowerthanthebottom.Ifa
lowerlimitischosenthatislessthanthebottom
depth,
theX-50willignore
thecommand.
To changethelowerlimit whiletheX-50isin theautomaticmode,
simplypress
thedesireddepth,thenthe LOWER
LIMIT key. Forexample,
changing the lower limit to 50 feet requiresthe following keys to be
pressed: 5,0,LOWERLIMIT
o=FASTRAKON
1 =FASTRAKOFF
FASTRAKisa featurethatconvertsallechoestoshorthorizontalbars
onthefarright sideofthe
display.
The
graphdisplaycontinuestooperate
normally, however In essence,FASTRAK is avertical bar display that
enablesyoutodetermineatarget'sdeptheasier Forexample, seefigure
30above.WithFASTRAKenabled, thefish echo ismaking amarkcloseto
the8th line onthescala Withan upperlimitof0and alower limit ofeo,
then each scale markis6feetwhichplaces thefish atapproximately 54
feet.Since FASTRAK isso closetothescale markers,itmakesitalittle
easiertolineupthe
targefsdepthwiththescale.
ToturnFASTRAKon,press the0
key.
To turnFASTRAKoff,pressthe1 key.
14 31
- S I
H
hi
I-
H
-52,Q F
"'i—i
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COMMAND
TheX-50 has manymorefeaturesthan availablekeys.
TheCOM-
MAND key lets youaccess 'menus"of other functions.Atypical menu
lookslike
figure29.
Tofindthedesiredfunction,press 2nd,DISC (COMMAND). Thefirst
menuwillappearforsixsecondsasshown infigure 29. Ifyoudon'tsee
the desired function, press the DISC (COMMAND) key again. Continue
pressingit until the desired function isshown on the display.
All ofthe
functionswillbenumbered.Toactivatethe desiredfunction,
simplypress
thenumberonthekeyboard that
corresponds
tothefunction.
A faster way to execute menu functions is to press the function's
numberfirst,thenpress2nd,DISC(COMMAND). Forexample, theCLEAR
DISTANCE LOGfunctionis number5.To clearthe log one must either
press 2nd, DISC (COMMAND), then press DISC (COMMAND) until the
CLEAR DISTANCE LOGfunction isdisplayedand press thenumber5on
thekeyboard,orsimplypress 5, 2nd,DISC (COMMAND). Both methods
canbeused onallmenufunctions.
Each ofthefunctionsare listedbelow in orderofappearance onthe
menus.
Remember, 2nd,DISC (COMMAND) mustbepressed
toenableor
disableanyofthe
followingfunctions.
0FASTRAKON
1 FASTRAKOFF
2GRAYLINECHECKERBOARD
3GRAYLINELINES
4SPEAKERVOLUME
5CLEAR DISTANCE LOG
6NARROWAUTORANGE WINDOW
7WIDEAUTORANGE WINDOW
8ENABLE DIGITALAVERAGING
9DISABLE DIGITALAVERAGING
10BATTERYBACKUP ENABLED
11 BATTERYBACKUP DISABLED
12SCALEON
13SCALEOFF
14CALIBRATESPEED
15TEST PATTERNON
16TEST PATTERNOFF
17KEELOFFSET
18TOTAL SYSTEM RESET
Manual Operation
Thelower
limitmay bechangedtoanysetting whiletheX-50isinthe
manualmode, regardless ofwherethebottom
signalis.
To
changethelowerlimitin manual mode, firstmakecertaintheword
"AUTO"isnot
displayedatthetopofthe screen,signifying
thattheauto-
maticmodeisoff.(Note: This also disablestheautomatic
sensitivity
func-
tion.)Iftheautomaticmode ison, presstheAUTOkeyoncetodisable it
Next,enterthe lowerlimitdesired from10 to 6500 feet and press the
LOWERLIMIT
key.Thedisplaywillimmediatelychangetothenew depth
rangeanddisplaythenew lowerlimitatthebottomofthe screen.
For
example,
tosetthelowerlimitto31 feet,press
3,1, LOWERLIMIT
-
SENSJTIIJITVJ_.—
1!
UPPER
LIMIT
UPPER LIMIT
Oftenit'sdesirabletoexpandor"ZOOM"asection ofthe
displayto
show more detail.You candothis ontheX-50byusingthe UpperLimit
feature.WhentheX-50isin automatic,
the
upper limitisautomatically
set
tozero and cannotbechangedwhileintheautomaticmode.(Unless the
Auto Range with Zoom BottomTrack feature is used.Seepage 16for
details.)
However, iftheX-50isinthemanual mode,anyupperlimitmaybe
chosenprovided itisnocloserthanten feettothelowerlimit
30 15
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Tochange the upper limit
ofthe
display,
firstmake
certaintheX-50is
in the manualmode.Then simply press the desired depth (any number
between0and 6490feet)andthen theUPPER LIMIT key. Remember, the
only restrictiononthe upperlimitisthatitmust notbeclosertothelower
limit than 10 feet In other words, ifthe lower limit is setto 80 feet, the
upper limit cannot besetany closerthan 70feet.Aten footsegment
or
larger isrequired.
Upperand lower limits may be setin variouscombinationstoshow
segments
fromthesurface tothebottom and anywhere
in between.This
permitsascaleexpansion
or"zoom" ofaportionofthe
display.
Example: Settherange
from16to31 feet
Press:
1, 6,UPPER LIMIT,
3, 1, LOWER LIMIT
8
BTMTRK_-
AUTO RANGEWITHZOOM BOTTOMTRACK
Although the upper limit cannot be directly changed while in the
automatic mode, a"window" can be chosen thatwill trackthebottom
signalandshowanenlargedor"zoomed"pictureoftheunderwaterworld
usingtheAUTORANGE with ZOOM BOTTOM TRACKfeature.
Thedigitalbottom depthwill revert tothe mediumnumbersize, all
alarmswill beturned off, thespeedometer,
temperaturedisplay,and log
willalsobeturnedoff.Automatic
willbeturnedbackon.The
range
willbe
changedifthe bottom
signalisnotonthedisplay.
Thememory
functioncanbeturnedoffifdesired.Formoreinforma-
tion,seetheCOMMAND functiononpage30.
-M:yiS
I scow FAST
(EALL RESUME STORE
DISPLAY MEMORY
TheX-50hastwo "pages"ofdisplaymemory
available,
allowingyou
tostoreanentirescreenwhendesired.Thankstotheinternal
battery, the
displaymemorycanberetainedeven ifpower isdisconnectedfrom the
X-50.Bypressing afewkeys,
the
display
thatiscurrently onthescreenwill
bestoredintomemory,complete withupper
andlower
limits, digitalbottom
depth, temperature,
and speed.If any orall ofthese functions are dis-
played on the screen, then they will be stored and displayed when
recalled.
There aretwomemorylocationsfordisplaymemory, numberedone
andtwo.Tostorethecurrentdisplayintonumberone,press1,2nd, FAST
(STORE).Thecurrentdisplay isnow stored in location one.To storea
differentdisplay,press2,2nd,FAST (STORE).Now two differentdisplays
arestoredintomemory. If
desired,
newdisplaysmaybestoredintothetwo
locationsbypressing
1,2nd,FAST (STORE) or2,2nd,FAST (STORE),
but
thepreviousdisplay
willbeerasedeachtimeanewdisplayisstored.
To recall a display stored into memory,simply press the memory
location number, either one or two, then the 2nd key, then the SLOW
(RECALL) key. For example, to recall display one, press 1, 2nd, SLOW
(RECALL).
The
display
thatwasstored inmemorylocationnumberonewill
immediately
bedisplayed. Itwillremainonscreenuntil
anykeyispressed.
TheCLEAR keyisa
good onetouseforthat.
NOTE:Whenstoring orrecallingascreenintomemory
location1,the
1 doesnothavetobepressed.
Forexample,
press 2nd, FAST (STORE)
insteadof1, 2nd,FAST (STORE) tostore ascreen intomemoryor2nd,
SLOW (RECALL) instead of 1, 2nd, SLOW (RECALL) to recall screen
memory1.
16 29
UPPER LIMIT
LOWER LIMIr
Figure12 S
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28 17
Tousethis
feature,
azoomwindowmustbechosen.For
example, use
a20footzoomwindow.This meansthattheX-50willkeepthe
upper limit
setting20feet abovethelowerlimitand place
the bottom signalinthis
window,trackingitasitmovesshallowerordeeper.
Press
2,0,
2nd,8.The
X-50willchooseanupper andlowerlimitthatwillplace
thebottom
signal
in the20footwindow.Thebottom
willbetracked and always keptinside
this window, Ifthesegmentsize is40feet or greater,
thebottomwill be
tracked with window limitsending in zero(10, 20, 30, etc.), otherwise the
limitswillbein onefootincrements.
__LssJs,r'vIrv -__:___. -
_1
41—
— ::i:-!I:: .._
PULSE
In
sonar,
thereisarelationshipbetween
transmitter
pulselengthand
resolution.Resolution,in this case, is theability ofasonar to separate
targets.
Theshorterthe
pulselength,
thebetterthesonar's ability tosepa-
ratetargets.
However, in deepwater,theshorterthepulselength, theless
likely a return echowill be received. In fact, the X-50 automatically
increasesthe pulse length as thedepth increases.In shallow water,a
narrowpulselengthisbeneficial,
sincethe
probability
ofechodetectionis
high. Forevenbetter targetseparation,
theX-50givesyouthe
capability
of
changing
the
pulselengthtoamorenarrowlength
thanwouldnormally be
used.Combinethenarrow pulse lengthwith a10, 20, orevena30foot
segment
or"zoom" and theX-50willdisplaysmall detail far betterthan
otherLiquid CrystalGraphs.
To change to a narrow pulse, press 2nd, 0 (PULSE). A menu will
appear(seefigure 28).Simply press2forthenarrowpulselength. If
fishing
in deeperwater,press2nd,0(PULSE)andthen press1 toswitch backto
normalpulselength. Cr:ff'1JJJLi)
len
PRESET ( PREJ
FO NO
CH-!4GE
F'EEZ.S H — Figure28
-
— Figure13
-
Toexitfromthisfunction,press2nd,
8
(BRM TRK) orpressthe AUTO
key
toturnoffthe automaticmode.
•']
ethr.]ri:•
I-DIGITAL SHALLOW DEEP
10TH ALARM ALARM
DIGITAL
Acompletedigitalsonar isbuilt insidetheX-50.Itautomaticallydis-
criminatesbetweenthevalidbottomechoes and falseechoes fromfish,
thermoclines,
orother
signals.
The
digitaldisplay
willshowonlythebottom
depth.
Itcanbeusedanytime,regardless ofthemodetheX-50isin.
Remember, ifthechartisin thefreeze mode,
thedigital displaywill
continuetoshowthebottomdepthasitchanges.
Itdoes
notfreezewhen
thechartdoes.
TheX-50has an internal batterythat keepspower suppliedtothe
memorycircuits evenwhenthepower cableisunplugged
fromthe unit.
This allows the X-50to retainallthe
settingsthat were in effectwhenit
waslastused.However, attimesit
maybedesirabletoerase
thesesettings
and startover. UsingthePRESET functionallows theX-50toberesetto
the factory standard settings. To reset the X-50, simply press 2nd,
*(PRESB)
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18 27
I
[I
n
-
WhentheX-50isfirstturned on, the digital willflash "0" until ithas
"lockedon"tothebottom
signal.Onceithasacquired thebottom
depth,it
willdisplaythedepthin the lower
leftofthe
display.
Figure 14 Figure 15
Figure27
DIGITALBO1TOMDEPTH
Therearethree differentsizesofthedigitalnumbersforthe
display,
small,medium,
and large.Whenfirstturned on, the digitalnumbersize is
medium.To change to adifferentsize,press 2nd,7.Amenuwill appear
(seefigure 15)andyouwillbepromptedtopress
the1 key
forsmalldigital
numbers,2formedium, or3forlargedigital numbers. Afterpressing
the
desired numberonthe keyboard,
themenuwilldisappear. Ifnumber
three,
"largedigital" isselected,the chartwill notbedisplayed(see Figure16).
Instead,
thescreenwillbecleared,thebottomdepth willbedisplayedin
large digits,speedand temperaturewillalso bedisplayed(ifturned on),
andthe
depthalarmsettings
willbedisplayedatthebottomofthescreen.
This
turnstheX-50intoadigitalsonaronly
and allowsittobetter
trackthe
bottomsignal.Onereasontousethe
digitalinthismannerwouldbeif
you
aregoing
totravelathighspeedfromonepart ofalaketoanotherand
you
justwanttoknowthebottom
depth.
Thiswillgiveboththefastest
possible
depthupdatesplus
aneasy-to-readdisplay.
Tochange backinto"normal" mode, simplypress 2nd, 7againand
choose eitherI,smallnumbersor2,medium
numbers.
Thedigitaldisplaycanbeturned offbypressingthe DIGITALkey in
theDIGITALSONAR portionofthekeyboard.
Figure
26 BOATSPEED
51
LOG DIST LOG
Iftheoptional speedsensor,model LSS-5 isattachedtotheX-50,
thentotaldistancetravelledorlog
can
bedisplayedontheX-50'sscreen.
To
displaythe log,press2nd,5. ThedistancetravelledsincetheX-50
was
lastturned on willbedisplayedin statuemiles.To resetthelog,seethe
COMMAND
functionkey instructionsonpage 30. Toturnthe logdisplay
off,press2nd,5again.
9
FT/FA/M
FEET-FATHOMS-METERS
TheX-50candisplaythe depth in eitherfeetfathoms, or meters.
Whenitisfirstturnedon,thedisplayreadsinfeet
Tochangeitto
fathoms
ormeters, press
2nd,
9
(FT/FA/M).Amenuwillbedisplayed
onthe
screen
(seefigure27) indicatingthat thedepth is in feet Tochangetofathoms,
pressthe2keyonthekeyboard,or press3tochange tometers.For no
change press theCLEAR key. Aftertheselection is made, the unitwill
resume
operation.
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