Eagle Silent Six-Sixty Installation Instructions Manual Download Page 1 | Manualshive

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Summary of Contents for Silent Six-Sixty

Page 1: ...pairs Ifyou dohavetoreturntheunitforservice pleaseenclose aletterstatingthe problem that you are having withthe unit This will assistus in the testingandrepairofyourdepth sounder Mailto EAGLE ELECTRONICS P0 BOX 669 CATOOSA OKLAHOMA 74015 Ifyou live outofthe stateofOklahoma call1 800 331 2301 Ifyou live in the state ofOklahoma callcollect918 266 5373 SCHEMATIC DIAGRAM PARTSLIST Should you desire as...

Page 2: ...p proximatelyonesecond Three miles perhouris4 4 feetper second and the diameter ofthe circlecovered bythetransducer is approximatelyfour feetat that depth The signal returned by afish 15 feet deep wouldlast halfasecond andfrom afish60 feet deep the signal wouldlast approximatelytwo seconds Thisis agoodpoint toremember because fishoftenschoolin a horizontalplane sometimes ratherwidelyscattered inth...

Page 3: ...n Note the unitmust be runningwhenyou makethis test Holesin the base ofthe bracket allowwood screworbolt mounting Thread both knobs partiallyinto the mounting bushings on the case The gimbalbrackethas slots in the topofitthatallows the unitto snap inwithout removingthe gimbal knobs Theseslotswill clear thethreads ofthe gimbalknobs but net the Fig 21 mounting bushing on the case spread slighlty to ...

Page 4: ...aveflotationmaterials such as wood or foam inbe tween layers offiberglassif thematerialis removedfrom the chosenarea For example somemanufacturers use a layer offiberglass then acore ofbalsawood andthen the outerlayeroffiberglass By removingtheinnerlayerof fiberglass and the balsa wood core theouterlayerof The signals returned fromarockybottom are quiteconfusing when you first see them The EAGLE s...

Page 5: ...ementhulls Watershould flowsmoothly in this area anditshould stay in the wateratallspeeds 3 Before permanently bonding the transducer tothehull trialruns are recommended tofindthebest mounting lo cation Onceanarea hasbeen determined to be agood spot forthetransducer to be mounted add some waterto thearea andplacethetrans ducer in it face down This willeliminate air between the faceofthe transducer...

Page 6: ...eoutsideedge ofthe hull See Figure 8 The transducershouldbe mounted away fromstakes ribs or otherhullfittings thatcan causeturbulence 4 Ifthehulldeadrise exceeds 4 degrees ashoot thru hull mount on the centerline of thehull oranoptiQnaltrans ducer should beused See Figure9 5 Place thebracket againstthe transomin the selectedarea withthebottomofthe trans ducer flushwith the bottom of the hull Align...

Page 7: ...OPERATION SENSITIVITY AND ON OFF KNOB Thisknob operates in amanner similar tothe volumecontrol on aradio Thrningthe knob clockwise will turnthe uniton andturningthe knob back the full counterclockwiseposition will turntheunitoff Thrning the knob in acontinued clockwise manner will increase the receiver sensitivity and weaker echosfromdeeper water can andwill be observedon the dial Aftermounting th...

Page 8: ...ly 4 800feetpersecondthrough wateras comparedtoapproxi mately1 100feet persecond throughair The way a sonar worksinits simplest formisanelectrical pulse isconvertedinto asound waveby thetransducer and transmittedintothe water Whenthis wave strikes anob ject itrebounds Since thespeed of soundthrough wateris known the time lapsebetween thetransmittedsignal and the receivedecho canbemeasured andthe d...

Page 9: ...tingpoint to measure depth and as anindi cator thatthe depth sounder is on Even though the neonbulb flashes it happensso oftenthat the humaneye sees it as a nearly constant light The bulb alsoflashes atthe point on the dial that indicates the depth The point isindicated by the length oftime it takes the soundwavestoreachthe bottom andreturn In addition echoes returned fromanyobjectin the waterbetw...

Page 10: ...k anevenwider one with occasional flashesabove andbelowthe levelof the true bottom thoughthese signals aren tso distinct as the ones re turnedby scattered rocks on a smoothbotto m Bigrocksorstumps on a smooth bottomsend back signals above the level ofasmoothbottom the distance dependingon their height Ifyou watch as you ap proach apost or atree however you will oftenseethe signal climbup thendesce...

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