Lowrance X-15B Installating And Operation Manual Download | Manualshive

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Summary of Contents for X-15B

Page 1: ...mination 5CC or Pulse Width at the bottom of the page simplypress 2nd and thenthe correspondipg key DISC SCC MARK or PULSE and it will bereprinted immediately INSTALLATION AND OPERATION MANUAL X 15B COMPUTER SONAR Paper Saving Feature APPROXIMATE PAPER SPEED WithoutAlternate Transmit and Print LOWER LIMIT Minimum Paper Speed Maximum PaperSpeed Inches Hours Inches Hours RANGE feet 10 120 Per Mm Per...

Page 2: ...every other revolution in steadofevery revolution This accomplishes fourthings 1 Since the stylus only prints everyotherrevolution the recorded information doesn t have the overprint problem therefore good records are attainable at slower paper speeds Also the scale num bersare spread out more mak ing them more legible 2 Reduces the possibility of wrap around This is the un desirable occurrence of...

Page 3: ...ogetherto merge into one blob instead of two distinctimage Discrimination is aprogram installed in the X lSBs micro processor that enables itto process the outputfromthee ceiver determine whichsignals are noise and eliminate them then print only the legitimate echoes Using this concept the transmit ted pulsedoesnot have to be increased thsrefpre records with highresolution and high noiseirri munit...

Page 4: ...oming backfrom the bottomor fromfish This is called Probability of EchoDetection The probability of the unit being ableto detect an echo returning from deep water is diminished be cause the furtherthe sound pulse hasto travel the weakerit be comes By broadening the pulse length in essence alargersignal is tranmitted and it is easier for the repeiver to detect it Forthis reason the micro com puter ...

Page 5: ... s varL able suppression flashers and graphs Basically it works on the principle that most noise pulses are of relatively shortduration If the receivercircuit can be ad justed sothat it will acceptonly the section entitled Advanced Op eration This chapterwill describe several otherfeaturesthat will en ablethe serious operatorto get the maximum benefit fromthis equipment We urgeyou to read this man...

Page 6: ...wiseto turn the unit on The Sensitivityknobworks much like the volumecontroi onaradio that 100 is weakersignals will be detected with highersettingsof the knob When cruising or at othertimes whenjustsimple bottom contour information is desired the Sen sitivity setting can be low In deep water or oversoft muddy bot 200 toms which produceweak 8 at3db echos the setting will have to be higher intotheu...

Page 7: ...F caseor behind the viewingwin dow Except for small pieces of tape Don tforget to tapethepapeito the take upcore Don trotatethe stylusbelt up Don tuse oilycloths strongsol vents or abrasive cleansers TROUBLESHOOTING SECTION Symptom On Offswitch Is ON butthe stylusand paperdon t move What To Do Check fuse checkconnections at battery fortightnessand corrosion Symptom On Off switchis ON havezero mark...

Page 8: ...nit isturned on 1 TURN THE UNIT OFF 2 Release both catches on the topof the case Pull out and down on the top ofthe cage front and the platen to expose the stylus belt 3 The stylus beltridesovertwo wheels located attheright edge of the platen assembly Referto Figure 1 on page 2 Move the frontof the belt DOWN to position the stylusat thecenterofthe platen 4 drasp the beltatthe stylus holderwith the...

Page 9: ...re sentinthe electronic section when the unitisturned on 1 TURN THEUNIT OFF 2 Release both catcheson the top of the case Pull out and downon thetop of the case frontto expose thestylusbelt See Figure25 3 The stylus beltridesovertwo wheels located at theright edge of the platen assembly Move the frontof the belt DOWN to position the stylus at the centerof the platen 4 Hold the stylus beltstationary...

Page 10: ...e to 40 60 feet Press 4 0 UPPER LIMIT The range will then be displayed See Figure 17 The Uppefand Lower Umits can be used in various combina 8 Draw theend ofthe paper across the faceof the platen around the friction roller over thetake up core and tape it scuarelyto the take up core See Figure 30 Small pieces of tape maybe stored inside the housing for this purpose Closethe top of the platen as em...

Page 11: ...ngsat anytime simply press eitherthe UPPER LIMIT or LOWER LIMIT keys Thecurrent rangewill be printed on the paper immediately Thiswill not change the depth setting LINES When the X 15Bis first turned on depth lines will be printed on the paper If you desire toturn the Unesoff press the LINES key To turn thelinesback on press the LINES key again Example Turn lines off Press LINES key Result MARKER ...

Page 12: ...es up but not back down or vice versa it is because the trans ducer is not pointed straight down If yourtransducer is mountedon the transom adjustthe transducer until the fish showthe distinctive arched sighature This maytake some trial and error until thecor rect mounting is achieved Sharp well defined signatures will occur most oftenwhen the Sensitivity knob is set at the point or higher Remembe...

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