Eagle Mach 1 User manual

—the stylus maybe
damaged. (SeeFigurel9.)
SPECIALNOTE:Thestylus
maybe damaged ifthe platen
assembly ispulled
downun-
lessthestylushasbeen
moved tothe backside ofthe
platen.
4. Pull outanddownon thetab
atthetopcenteroftheplaten
assembly toexpose thepa-
perspools. (SeeFigure2o.)
5. To removethefulltake-up roll
andtheempty supplyspool,
press thetwo metal tabsto-
gether
on thetopoftheplaten
assembly,and pull outand
down onthepaperretainer.
(SeeFigure21.)Thefulltake-
uprollcannow beeasillyre-
moved fromthe paper core
shafts. (See Figure22.)
6. Pull theemptysupply core
fromthe right sidein the
same manner. Install
the empty core onto the
take-up shaft. (SeeFigure
23)
Align thetwo notches in the
core withthetabsonthe
lower
take-up spool.
7. Slide afresh rollofpaperin
position onthesupply
side
• shaftontheright sideofthe
• platen assembly.Thepaper
mustspool offthebottomof
the roll. (SeeFigure24)
8. Draw the end ofthepaper
across thefaceofthe platen,
aroundthefrictionroller, over
the
take-up
core, andtape it
squarely tothetake-up core.
(SeeFigure25)Small pieces
oftapemaybestoredinside
the housingforthis purpose.
Closethetopoftheplaten
assembly by pressing thetwo
tabstogether on thepaper
retainerand returning the re-
tainerbacktothe operating
position. (SeeFigure26)
9. Turnthe small knobatthe
upperlefthand side ofthe
platen assemblyto puta
small amount oftensionon
thepaper. It shouldbesnug
against theplaten.(Figure27)
10. Push theplaten assembly
backtoitsoperating position.
Besureit engages thecatch
inside thetop ofthecase.
(SeeFigure2O)
11. Closethefrontofthecase.
Latch both catchesonthe
top
ofthecase.
F 12. Turnthe uniton. Movethe
ChartSpeed knob
fully clock-
wise.Watchthepaperlong
enough tobe sure itis mov-
ingsmoothly and evenly
across theplaten. Ifthepa-
perflutters orbegins
to run
"uphill",repeat step8.
11
Figure18 Figure 19
Figure21
Notice—Use onlygenuine
Eagle EGP-1 graph paper
Substitutepaperdoesnot give
satisfactoryperformancein
Eaglegraphrecorders.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

STYLUS REPLACEMENT
CAUTION—High voltageispre-
sentintheelectronicsection
whentheunit isturned on.'
1. TURN THEUNITOFF.
2. Release both catchesonthe
topofthecase. Pull outand
downonthe
topofthe case
fronttoexpose the stylus belt.
(SeeFigurel8.)
3. Thestylusbeltridesover two
wheels located atthe right
edge oftheplaten assembly.
Move thefrontofthebelt
DOWNtoposition thestylus at
thecenterofthe platen.
4. Hold thestylus beltstationary
withonefinger, andremove
theoldstylusbystarting atits
leftedge andmoving itout
fromunderthetabsonthesty-
lusholder.
5. Before installing thenew sty-
lus, besureit isbent properly
bycamparing itto Figure 28.
6. Refer toFigure29to besure
the new stylus ispositioned
correctly underthetabsonthe
holder.Besure it moves freely
in thetwoslots. Ifnot, bend
thestylus awayfromtheedge
itis rubbing onuntil itdoes
move freely.
7. Afterinstalling, ifthestylus
won'tprint all,thewaydown
thepaperasshown in Fig-
ure3O,
bendtheright legdown
so thatmore pressure isex-
ertedagainst
thestainless
steelplate. Ifitstill does not
print alltheway, bend the left
legdownmore (butnotso far
that itdigs intothe paper).
8. Close thefrontofthecase.
Latch both catches onthetop
ofthe case.
EAGLE isthatitcan record indi-
vidual fishwith acharacteristic
archedmarkthatseparates them
fromtheirstationary surround-
ings.The reason forthis isshown
below.Thedistance to afish
whenitmoves intothesonar's
coneofsound isshown as "A" in
Figurel6.When thefishhas
movedtothe centerofthecone,
thedistancetoitwillbe shorter,
(line"B"), and as it moves outof
the
cone,the distance willin-
crease again asshown in line
"C". Ifapartial archoccurs most
ofthetimeonyourunit(themark
curves up, butdoes notcurve
backdownorvice-versa), itisbe-
cause thetransducer isnotaimed
straight down.
Sharp, well-defined signatures
willoccurmostoften whenthe
Sensitivity knobisset atthe¾
point, orhigher. (See"A",Fig-
urel7). Remember,too,thatthere
mustbesomemovement be-
tweenthefishandboattode-
velop
the arched mark.
Thermoclines
Thetemperature ofwaterinthe
lakeisseldomconstant fromtop
tobottom. Layers ofdifferent tem-
peratures form,and the
junction
ofawarm andcool layerofwater
iscalled athermocline. Thedepth
andthicknessofthethermocline
canvarywiththeseasonortime
ofday. Indeeplakes there may
betwoormore, atdifferent
depths. Thermoclines are impor-
tant tothefisherman because
theyareareaswhich fish are ac-
tive. Many timesbaitfishwillbe
above thethermocline whilelar-
gergame fish suspendjustbelow
it. See"B", Figure 17.
Your EAGLE Mach 1 candetect
thisinvisible
layerin the
water,
butthe Sensitivity knob willprob-
ably havetobeset atthe1/2
point, orhigher.
PAPERLOADING
CAUTION— Highvoltageispre-
sentintheelectronicsection
when theunitisturned on.
1. TURNTHEUNITOFF.
2. Release both catches onthe
top ofthe case. Pull outand
downonthetopofthecase
fronttoexposethe platen as-
sembly. (See Figurel8.)
3. Movethe stylus beltDOWN,
toposition themarking stylus
on thebacksideofthepla-
ten. NEVER movethebeltup
Figure 17
Figure 27
12 . 9
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

Occasionally,
when
changing the
stylus orstylus belt, thezero
does notprint
atthesameplace
nearthetopofthechart paper.
ByrotatingtheBOTTOM ZOOM
controlcounter-clockwise the
zeroline canbe movedtowards
thetopofthechartpaper,clock-
wiserotationmoves thezero line
towardsthe bottom ofthepaper.
Thecontrol hasbeen designed
so that even iftherecord goes off
thebottom ofthe paper,it- can
still be adjustedtoprintonthe
paper.
TheZERO
ADJUSTcontrol
will function ifthe BOTTOM
ZOOMfeature is on or off.
PressingtheMarker button
causes
averticallineto be
printed
onthe paper. Hold the
Markerbutton downand the unit
willprinttheverticallineforas
longas thebuttonis held down.
ENDOF PAPER MARKER
Thegraph paperused in the
MACH 1 hasared line printed at
the bottom ofthepaperto signify
when
thereisonly2to3feetof
paperremaining.
IV HOW TO READ GRAPHS
"Arched Signatures"
Aremarkable advantage ofthe
CAUTION—High voltage is pre-
sentintheelectronicsection
when theunit isturned on,
1. TURN THEUNITOFF.
2. Release both catches
onthe
topofthecase. Pull outand
down onthetopofthecase
frontand theplaten to expose
thestylus belt.
3. Thestylus beltrides over two
wheels located atthe right
edgeofthe platen assembly.
Refer to Figure1 on page2.
Move thefrontofthebelt
DOWN to position.thestylusat
thecenterofthe platen.
4. Grasp the beltatthestylus
holderwith thethumband
forefinger andmove itgently
tothe leftwhilepushing the
beltoffthewheelswiththe
otherforefinger. (See
Figure31.)
5. Position the new beltonthe
Figure28 Figure 29
Figure14 ZOoM "OFF"
ZERO ADJUST
Figure 15 ZOOM"ON"
MARKER
STYLUS BELT REPLACEMENT
Figure 16
-I
Figure31
8 13
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

wheels by reversing theproce-
dureused toremovetheold
one. BESURE
thefingersof
the new stylusare pointed UP.
6. Closethefrontofthecase.
Latchboth catches atthetop
oftheunit.
MAINTENANCE
NOTE: Thestylusmaybe
damaged ifitis in frontofthe pla-
tenwhenthe platen assembly
is
pulled
down. Alwaysmove the
stylustothebackside ofthepla-
tenwhenchanging thepaper
rolls. Remember to movethebelt
downto remove thestylus.
Black carbon
dustis created dur-
ingthe recording process. Use a
soft, oil-free rag tocleanthe
viewing doorand metal platenbe-
hindthe paper. Low pressure
compressed airmaybe usedto
blowdustoutofthecaseand
awayfrommoving partsiftheair
isdryandfreeofoil.
Afterevery fiverollsofpaper,the
stylus beltandthewheelsitrides
onshould bewipedcleanwith a
soft, ragmoistened withalcohol
to
remove carbon dust. Strong
sol-
ventsorabrasive cleaners should
notbeused.
All mechanical connections
shouldbechecked periodically to
besure theyhaven'tworked
loose.
HIGH VOLTAGEispresent in the
transmitter sectionwhen
theunit
isON. Noattempt shouldbe
made byanyunauthorized per-
sontomodify
orrepairtheelec-
tronicsection.
Allelectrical connections should
bechecked periodically and
cleaned as necessary.
Thefaceofthetransducer, if
mountedonthetransomshould
bewashed periodically with mild
soapy waterto remove any ac-
cumulated rod grime oroilyfilm.
Thisisessential to have good
contact between thetransducer
and thewater.
Periodically,therubber rolleron
thepaperdrive shouldbe
cleaned withaclothdampened
withalcohol, toimprove thefric-
tionon thedriveshaft.
DO SECTION
Do carryasparefuse,stylUsbelt,
and rollofpaper.
Do usetheempty cardboardcore
fromthelastrollofpaperonthe
take-up post.
Dokeeptherecorded graphs for
future reference.
Docleanthestylusbelt, wheels,
andtherubber rollerafterevery
fiverolls of paper.
DON'T SECTION
DON'TOPEN THECASEWHEN
THEUNIT IS ON.
Don't
pull the platen assembly
downwhenthestylusisatthe
front.
Don'tstore anyobjects inside the
caseor behind theviewing win-
dow.(Except forsmall pieces of
tape.)
Don't
forgettotapethe paper
to
Q p.r r
I
perspeed mayalso beslowed
whennotlooking forfish or to
simply
conserve paper.
GRAYLINE CONTROL
TheGRAYLINEfunction canbe
usedtooutline thebottomcon-
tourwhichmight otherwise be
hiddenbeneath treesand brush;
itcanalso giveclues tothecom-
position ofthe bottom. A hard
bottom returnsaverystrongsig-
nalcausing awidegrayline. A
soft, muddy,or weedybottom re-
turnsaweaker signal whichis
emphasizedwithanarrowgray
line. Do notadvance the control
toofaroritwillgraylineonthe
targetcompletely, showing no
black, which makes the targetdif-
ficulttosee.
There are12 ranges:
0-10 feet
0-20
0-40
0-60
0-80
0-100
0-140
0-200
0-300
0-400
0-600
Figure13 0-1000
Thiscontrol determinesthedepth
scale displayed onthechart
paper. (See Figure 13)
BOTtOMZOOM
Bypulling outtheknob, thefea-
tureallows youto "Zoom in"on
thelowerhalfoftherangebeing
displayed onthegraph. In other
words, withthe Range control set
tothe60footrange, and theBot-
tom Zoomcontrol pushed in
(OFF), thescale printed onthe
chartpaper will be0to60feet.
(SeeFigure 14.) With the Bottom
Zoomcontrol pulled out (ON),
the scale willbe30to 60feet.
Thisallows youtodouble thesize
ofanytargetorfeature inthe
lowerhalfofanydepth range.
(Figure 15.)
ZERO ADJUST
@ERANGE
IOU -. . 140
60 —p —2O0
60 —.... &___300
40 ---e
20 r—60O
10 — —1000
rGRAYLINER
'<_PAPER SPEED
4 4
0
Figure 11 GRAYLINE "OFF" Figure 12 GRAYLINE "ON"
RANGE
14 7
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

sound pulse hastotravel, the
weakeritbecomes. By broaden-
ingthepulse
width, in essence, a
largersignal istransmitted and it
iseasier forthereceiver todetect
it.
Forthisreason, themicro-com-
puterintheMACH 1 automat-
icallyincreases theinitial pulse
width oftheunitas deeper
ranges
are selected bythe
operator.
NOTE:Initialpulse width isthe
pulse
width oftheunitwhenthe
Suppressor control isturned to
minimum.
INITIALTRANSMIT
PULSE WIDTH
(micro-seconds)
Thetransmitter pulsewidth can
beincreasedfromthe initial point
atanytimeby rotating theSup-
pressor controlclockwise. The
maximum amount ofpulse width
Figure10
addedtotheinitialtransmitter
pulsewidth isapproximately 800
micro-seconds. In otherwords, if
the range control issetto300
feet,andthe Suppressorcontrol
isrotated tothe maximumclock-
wiseposition, thetransmitter
pulsewidthwould be1100 micro-
seconds. (300initial pIus 800
equals1100micro-seconds.)
PaperSpeedControl
Thisknob adjusts thespeed of
thechartpaper. Forgood detailed
graphs,
inshallowto medium
depths, turnthe paper speed con-
troluptoatleast¾when
trolling.
Forbestdetails, turnituptomax-
imum. Thiswill show proper fish
arches atlowspeeds and keeps
highspeed information from
being compressed. Thepaper
speed should beturned down
when
using
theunitin deep wa-
ter.Thiswillpreventgaps from
appearing inthe record. Infact,
the microcomputerwill automat-
ically
slowthe maximum speed of
thechartpaperwhen
operating in
deep
water. Thechart below
givesthepoints
where the max-
imumspeed ofthepaperis
slowed.
Thechartpapermay be slowed
evenfurtherby adjustingthepa-
per speed control. Remember,if
gaps appear in the record,turn
thepaperspeed down until a
solid record isachieved. Thepa-
thetake-up core.
Don'trotatethestylus beltup.
Don'tuseoily cloths, strong sol-
vents, orabrasive cleansers.
TROUBLESHOOTING SECTION
Symptom
On/Offswitchis "ON",butthe
stylusand paper
don'tmove.
WhatTo Do
Check fuse;checkconnections at
battery fortightness and
corrosion.
Symptom
On/Off switchis"ON",have zero
mark, butnoechoes orbottom
signal.
WhatTo Do
Besurethetransducer isplugged
intothe unitandthetransducer is
in contactwith thewater.
Symptom
Theunitis"ON",butpaperdoes
not move.
WhatToDo
Tape paper
tocardboard spool on
take-uppost.
Symptom
Recordermarks arefaint ordim.
WhatTo Do
Clean
viewingdoor; replace the
stylus;checkbattery connections.
Symptom
Recorded marks are very heavy;
paperistornby stylus.
WhatTo Do
Bend the stylusslightly to reduce
pressure on paper.
VI ADVANCED OPERATION
The EAGLE MACH 1 takesad-
vantage ofthe micro-processor's
power, giving you options
that al-
lowsittooutperform thevastma-
jorityofgraphrecorders in the
sportfishing field.To usethefunc-
tionsin this sectiontwocontrols
mustbe usedsimultaneously.We
urgeyoutoreadthissection
carefully
totakeadvantage ofthe
superiorperformance ofthe
EAGLEMACNi.
Lines
When theunitisfirstturnedon,
depth lines are printed
automatic-
ally onthe paper.Ifyou desire to
turnthelinesoff, rotatetherange
control to20feet, holdthemarker
switch
'ON",and rotatethe range
control tothe 10feet position. The
markerswitchmustbe "ON"dur-
ingtheswitchfrom20to 10feet.
TheMACH 1 will stopprinting the
RANGE
(feet)
10 110
20
40-200
300
400
600-1000
150
200
300
400
600
APPROXIMATE PAPER SPEED
Minimum
PaperSpeed Maximum PaperSpeed
Inches Hours Inches Hours
RANGE(feet)
10-100 Per Mm Per Roll Per Mm PerRoil 1.0 10 3.0 3.3
140-200 0.5 20 2.0 5.0
300-600 0.2 50 1.2 8.3
1000 0.2 50 — 0.75 13.3
2H
3b
LI9
ED ER6LE
2H
BE
L9
bE
H
b
L19
ED----——--—-——---— ERDLE
2H
Sb—
ED
Figure 32 - LINES
"OFF" Figure 33 LINES "ON"
6 15
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

lines immediately.Turntherange
control backtoyouroriginal depth
setting.
Toturnthe lines backon,simply
reverse the procedure by turning
therangecontrol to 10feet, hold
themarker switch"ON",and ro-
tatethernge control tothe20
feetposition. Lineswillbeprinted
onthe paper.Return therange
control tothedesired depth
setting.
Scale
Thenumbers that indicate the
depth orscale maybedeleted if
desired. Rotate therangecontrol
tothe 60feetposition, hold the
marker control "ON",andturnthe
range control tothe40feet posi-
tion. Thedepth scalewillno lon-
gerbeprinted. Therange control
now maybeturnedtothedesired
depth setting.
Toturnthedepth scalebackon,
rotatetherangecontrol to40feet,
holdthemarkerswitch"ON", and
rotatetherangecontrol backto
the60feet position. Remember,
themarkerswitchmust beondur-
ingtheperiod
oftimethatthe
rangecontrol isswitched. Return
therangecontrol tothedesired
depth setting.
24 - -———- --—--———-
3b - - -— — — ________-Lb
HR —--- 4 --
by ——— - ERELE — bu--
Figure 34 SCALE"ON"
Transmitand Print Alternate
When using
the MACH 1 in deep
water, itmay bedesirable toslow
thepapersped downconsid-
erably.However,whendoing so,
youmayget 'over print"orvery
dark, heavy printing overan area
thatisdifficult toread.Much de-
tailcanbe lost duetothis.
An available feature istheTrans-
mit and Print Alternate function
which, when activated, triggers
thetransmitter andcausesthe
stylus
toprinteveryotherrevolu-
tioninstead ofeveryrevolution.
Thisaccomplishes threethings:
1. Since thestylusonlyprintsev-
eryotherrevolution,there-
corded information is not
squeezed together
intoavery
small area. This allows
better
records atslowerpaper
speeds. Also, thescalenum-
bers are spread outmore, so
theyare morelegible.
2. Preventsthe possibility of
"wrap around". Thisisthe un-
desirable occurrence ofthe
second orthird bottom echo
printed onthepaperatthetop
ormiddle ofthe page. Many
timesthiscaninterfere with
fish orother
targetsthatyou
wishtosee.
SuppressorControl
TheSuppressor Control is used
toreduce interference fromnoise.
Noise, in electronic terms,isany
undesired signal. Itcanbe
caused byan electrical source,
(suchastheengine's ignition sys-
tem), or byairbubbles in dis-
turbed waterwhichiscalled
cavitation noise. In both cases,
the noise could produce un-
wanted marks onthe paper. (See
Figure7). Fortunately, noise
— —r HO —— —________
-- P -
:..çj—TT1:Iff...!J'1!Ijii— .-1 ---—- EQ ---——---————-EHIL
Figure6
pulses are relatively short in time
compared torealsonar signals.
Advancing theSuppressor knob
willcausethesystem toreject
theseunwanted, short pulses
without
reducing
thesensitivity in
anyway. However,with highsup-
pression settings,
the
graphrec-
ord becomes coarseand the
ability to separatefishfromthe
bottom orfromotherfishwillbe
decreased. (SeeFigure9).
Therefore, the lowerthesuppres-
sion setting, thebetter. Advance
theknob setting onlyasfar as
necessary toremove the erratic,
unwanted noisemarks. Mostof
thetimeatlowortrollingspeeds,
nosuppressionwill beneeded.
However,it is helpful sometimes
to have longer pulse widthswhen
noiseis notaconcern. When us-
ingasonarin deeperwater, itis
easier-for the unittodetectalon-
gerpulsecoming backfromthe
bottom orfrom thefish. Thisis
called"Probability ofEcho Detec-
tion".Theprobability oftheunit
being abletodetectanechore-
turning fromdeep wateris dimin-
ished because thefurtherthe
Figure7
EAGLE
Figure 35 SCALE"OFF" PROPER SEllING
16 Figure 8 Figure9
SUPPRESSION:TOO HIGH
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

Figure 3
BASICOPERATION
ON-OFF and
SENSITIVITY Control
Rotate the ON/OFF knob clock-
wisetoturnthe uniton. TheSen-
sitivityknobworks much likethe
volumecontrol on aradio,thatis,
weaker
signals will bedetected
with higher
settings
oftheknob.
When cruising, oratothertimes
when
just
simplebottom-contour
information is desired, theSen-
sitivitysetting canbe low. Indeep
wateroroversoft, muddybot-
tomswhichproduce weak
echoes, the setting will haveto
be higher.
When highSensitivitysettings are
used,asecondbottom echowill
appear.Thisis normal and is
caused bythereturning signal re-
flecting
offthe surface ofthewa-
ter, making a second triptothe
bottom
and back.
When detailed information about
brush piles, individual fishorthe
thermoclineis desired, the Sen-
sitivityknobshould beset ap-
proximately tothe¾point. Refer
tothe illustration belowtosee
whateffect theSensitivity setting
hasonthe recorded information.
Recording individual fish with an
"arched" signature canusually be
accomplished attrolling speeds
withtheSensitivity
knob atthe¾
point, orhigher. Refertothesec-
tion"Arched
Signatures" formore
information aboutthis important
function ofyour recorder.
3. Reduces thereverberation ef-
fect.This happens mainly on
lower
frequency units,
al-
though
itdoes sometimes
show upon highfrequency
graphs.
To usetheTransmit and PrintAl-
ternate
function, turntherange
control to100 feet. Next, hold
downthemarker switchand turn
the range control to80 feet.
Now release themarker switch.
Returnthe range controltoyour
original setting. TheMACH 1 will
now bein theTransmitand Print
Alternatemode. Remember,the
marker control mustbe"ON"dur-
ing theperiod
oftimethatthe
rangecontrol isturned from100 to
80 feet.
Toreturn theMACH 1 tonormal
operation, simplyreversetheop-
eration byturning
therange con-
trol to80feet, holdthemarker
switch"ON",rotatetherange
control to
100 feet, andrelease the
markerswitch.
NOTE: Asimple
wayto return
anyoftheoptional
featuresback
tonormal operation istoturnthe
sensitivity control to the "OFF"
position and thenturnitback
"ON".Thisturnsoffthepowerto
theunit,erasing alloftheop-
1
APPROXIMATE PAPER SPEED
RANGE
(feet)
10-100
140-200
300-600
1000
Minimum
Paper
Speed Maximum PaperSpeed
Inches
Per Mm Hours Per Roll Inches
PerMm Hours PerRoll
0.6
0.4
0.2
02
17
25
50
50
2.0
1.2
0.75
015
5.0
8.3
13.3
13.3
n
Figure 36 (withAlternateTransmit andPrint)
By comparing thischart with theone on page 6, you can see that a
significant amountofpapercanbesaved byusingtheAlternateTransmit
and Printfunction.
2
2L1
SENSITIVITY: PROPER SETTING
Figure 4 SENSITIVITY: TOO LOW Figure 37
Figure 5
4 17
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

tionalfeatures
thatyou have pro-
grammed
in. Justremember, if
youhaveturned thelinesand the
scales off, andyou wishtoturn
only the scales backon, don't
turnoff power totheunitoryou
willhavebothlinesandscales on
whenyouturntheunit backon.
Turningthe unitoffandthen on
again only works as aquick
method whenyouonlyhave one
feature on, oralloftheoptional
features thatyou wishtoreturn to
normal.
described inSection VI
—Ad-
vanced Operation. Thischapter
will explain theotherfeatures that
will enable theserious
operator to
get
themaximum useoutofyour
EAGLE.
We urgeyou toreadthis manual
thoroughly and familiarize your-
selfwiththecontrols. Although
this isa
very advanced unit,itis
easyto use, thankstothepower
ofthemicrocomputer andthe
frontpanel controls. Should you
require extrahelp, pleasephone
ourCustomer ServiceDepart-
menttollfree—1-800-331-2301.
Oklahoma residents call collect
918-266-5373. Aservice repre-
sentative will behappyto help
you.
INSTALLATION
Mounting—
Thedepth sounder
maybe in-
stalled in anyconvenient area,
provided the unitcanbetiltedfor
the bestviewing angle. Holes in
the bracket allowwoodscrew or
thruboltmounting. Awoodstiff-
enermayberequired onthe back
ofthinfiberglasspanels
to sup-
portthe unit.
Ifthedesired location is closer
than 18" toamagnetic compass,
atrial run should be madewith
theunitin operation tobesure
that thecompass readings are
notaffected.
POWER CONNECTIONS
12volt DC powerforthesonar
unitshould be supplied fromthe
boat's 12volt DC electrical sys-
tem. Thepower cablemaybeat-
tached to anaccessory orpower
buss, butifyouhaveproblems
with electrical interference, the
cableshould beattached
directly
tothe battery.
Ifalonger cable is required, use
ordinary #18 lampcord available
atany hardware or electronic
supply store. Splices should be
soldered. Ifthiscan't be done,
usecrimp typesplices. Tape all
connections withelectrical tape.
Anin-linefuseholderwith fuseis
supplied withthe EAGLE graph.
Becertain toinstallthisfuse
holderas close tothe power
source as possible. Thiswill pro-
tectboththesonarunitand the
powercablein theeventashort
occurs. Crimp connectorsare
supplied toattach thefuse holder
tothepower cable.Thered wire
in the power cableisthe positive
conductor. Theblackwire isthe
ground ornegative conductor.
Thegraphisprotected fromacci-
dental polarity reversals andno
damage will occur ifthewires are
reversed. However,theunitwill
notoperate until the proper polar-
ityis applied.
— bfl—--2--
Figure 38 RANGE: 60 FEET
ZOOM:OFF
SENSITIVITY: 1/2 p
SUPPRESSOR: MINIMUM I
PAPER SPEED: 3/4 I
GRAYLINE: MINIMUM
RANGE: 60FEET
ZOOM: ON
SENSITIVITY: 1/2
SUPPRESSOR: MINIMUM
PAPER SPEED: 3/4
GRAYLINE: MINIMUM
Figure39 RANGE: 30 FEET
SUPPRESSOR: MINIMUM
SENSITIVITY:3/4
LINES:OFF
PAPER SPEED: 3/4
ZOOM:ON
GRAYLINE: MINIMUM Figure 2
18 3
Ground
(Negative)
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

1. INTRODUCTION
Small boatsonar systems are
routinely used to measure water
depth, examine
bottom contours,
and locatefish.TheEagle
MACH 1 recorder
goesfarbe-
yond the ordinary indisplaying
theseobjects, plusmany more
such as schools ofbaitfish, algae
and plankton, thermoclines, indi-
vidual fish closerthan sixinches
apart, andmuchmore. These
features combine to make the
MACH 1 asuperiorgraph re-
corderfortoday's sportfishing
industry.
2. HOW ITWORKS
When theunitisturnedon, an
electronically regulated motor
drivesalightweight beltlocated
attherightedge oftherqcording
paper.The marking stylusis at-
tached to thebelt.When thesty-
lusis atthetop ofthe paper a
small mark is made. Thisiscalled
thezeromark, and representsthe
surface ofthewater.Thestylus
continues to move downtheedge
ofthepaper whilethesound
pulse
istravelingthrough thewa-
ter, and whenan echo is de-
tected,thestylusmakes another
mark onthepaper. Thedepth of
theobject whichreflected the
echo canbereadinfeet bycom-
paring its location onthepaperto
the depthscaleprinted
onthe
paper.
Aconstant speedmotordrives
thepapergraph. (Thepaperis
treated sothatthestyluswillburn
itto leave apermanent black
mark.) During one revolution of
the stylus belt,averynarrow
mark will bemadebytheflexible
stylus, butthepaperwill move a
small amount before thenextrev-
olution. Each mark will blend into
theonebefore, so that a
compos-
ite 'picture"ofthetargetwill be
made, onetinymarkatatime.
Duetothe many featuresthat
thisunithas,we have splitthe
operation sectionofthis manual
intotwosections. Thefirst part,
Section III, isentitled "Basic Op-
eration" and covers
everything
thatisabsolutely necessary to
useyourEAGLE in awidevariety
ofsituations. Itwilltell youhowto
usethebasic controls —Sen-
sitivity,Suppressor, PaperSpeed,
GRAYLINE,Range, Marker, plus
a
fewspecial functions. This sec-
tionwill be adequate formost
situations. However,onceyou
have mastered the basic opera-
tionofthe EAGLE MACH 1,as
described in Section Ill,you may
wishtotrysomeofthefeatures
tA
1,
Figure 41
-
a 1:::
Figure40 RANGE: 60 FEET
ZOOM:OFF
SENSITIVITY: 314
Mi 2
p
2H
A3 r
-.
-'
HO
SUPPRESSOR: MINIMUM
LINES:ON
PAPER SPEED: 3/4
GRAYLINE: MINIMUM.
SUPPRESSOR: MINIMUM
LINES:OFF
PAPER SPEED: MAXIMUM
GRAYLINE: MINIMUM
RANGE:60 FEET
ZOOM:OFF
SENSITIVITY: 3/4
PULLEY
DRIVE
STYLUS
DRIVE
BELT
STYLUS
Figure
Figure42 RANGE: 80FEET
SENSITIVITY: MAXIMUM
SUPPRESSOR: MINIMUM
PULLEY
2 19
ZOOM:OFF
PAPER SPEED: MAXIMUM
LINES:OFF
GRAYLINE: MINIMUM
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

I? - LJLIA P
- ic &!t&!i L.±
Figure 43 RANGE: 60 FEET
SENSITIVITY: 3/4
SUPPRESSOR: MINIMUM
PAPER SPEED: MAXIMUM
LINES:OFF
ZOOM: OFF
GRAYLINE: MINIMUM
INDEX
Introduction 2
HowItWorks 2
Installation 3
Basic Operation 4
Suppressor 5
PaperSpeed 6
GRAYLINE® 7
Bottom Zoom 7
Range 7
Marker 8
EndOf Paper 8
HowTo Read
Graphs 8
Paper Loading 9
StylusReplacement 12
Stylus BeltReplacement 12
Do's and Dont's 14
Troubleshooting 15
Advanced Operation 15
Scale 16
Specifications 20
ServiceInformation 20
NOTE: Thissonar usesLPG-605 ChartPaper.
SPECIFICATIONS
Operating Frequency ..192 kHZ (192,000 cycles persecond);
accuracy iswithin 0.6 percent.
PulseWidth 110-1400 us (ADJUSTABLE)
(Duration ofPulse)
OperatingVoltage Minimum: 10voltsD.C.
Maximum: 15volts D.C.
Operating Current 0.7to 1.8ampsdepending on printing
density
andoutputpower.
Output Power 1600 wattstypical peak
topeak.
(200wattsRMS)
Weight 7lbs. 14oz
Dimensions Width-i
21/it, Height-9", Depth-65/s"
NOTICE
PeriodicallywashtheTransducer
Face withsoapand
waterto re-
move anyoilfilmthat maycollect.
Oilanddirtonthefacewill re-
ducesensitivity ormayeven pre-
ventsounding.
20
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

@Copyright 1963 Lowrance Electronics, Inc.
HOW TOOBTAIN SERVICE
EagleElectronicswillprovidequick
andefficientservicewithgenuine
Eaglepartsshouldyouever requireit.If youdorequire service,
callor
writeusattheaddressbelowbefore
sending
intheunit.We
maybe able
tosave
youtheinconvenienceof
sending
theunitbackforrepairs.If
you
dohavetoreturntheunitforservice,
pleaseenclosealetterstating
the
problem
thatyou arehaving
with theunit. This will assistusinthe
testing andrepairof yourdepth sounder.
Mailto: EAGLEELECTRONICS
P.O. BOX 669
CATOOSA,OKLAHOMA 74015
If
you liveoutofthestate ofOklahoma,call 1-800-331-2301.
If
you liveinthestateofOklahoma,callcollect918-266-5373.
SCHEMATIC DIAGRAM&PARTSLIST
Shouldyou desire a schematic and parts listfor yourEAGLEdepth
sounder,
send$1.00tothe addressaboveand itwill bemailed toyou
promptly.Pleasebesureand giveusthemodelandserialnumberof your
EAGLE.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor

EAGLE
INSTALLATIONANDOPERATION MANUAL
flT
JJLJ jjJ
dAn
I
flA fi
• /
MADAINUSA
EAGLEELECTRONICS
LIThOUSA P0.BOX 669, CATOOSA, OKLA. 74015
988-0095-01 U A Divsionat
Lawrence Electronics. Inc
GRAPH RECORDER
PDF compression, OCR, web-optimization with CVISION's PdfCompressor