User manual EAGLE ULTRA III

[. . . ] azawfl'w A 'iliui. . u_. uj2 -F -- Ar A A A The micro-computer is sophisticated, but it can be fooled. It can't distinguishbetween fish and othersuspended objects suchas trotlines, turtles, submerged floats, air bubbles, etc. Individual tree limbs extending outwardsfrom a groupof limbs is the hardest objectfortheFish 1. 0. feature to distinguish fromfish. symbols on the screen whenactually, there are no fish. [. . . ] Fish are cold blooded and their bodies are alwaysthe temperature of the surrounding water. During the winter, colder water slows down their metabolism. At this time, they need about a fourth as much food as they consume in the summer. Mostfishdon't spawn unless thewatertemperature iswithinrather narrow limits. A surface temperature meter helps identify the desired surface water spawning temperatures for various species. Trout can'tsurvivein streamsthat get too warm. Bass and otherfish eventuallydie out when stockedin lakes that remain toocold during the summer. While somefish have awidertemperature tolerance than others, eachhasa certain range withinwhich ittriesto stay. Schooling fish suspended overdeepwater lie at the level that provides this temperature. We assume theyarethemost comfortable here. VIEWING WINDOWS To seeall ofthe available windows, press the WINDOWS key, thenpress theMENU key. Some:· I Nowpressthe key adjacent to the "MAIN MENU" label. Finally, press the key nexttothe "VIEWALL WINDOWS"label. Thescreen at right appears. inthe Thefirstwindowappears FEET I HI Digital Depth WATER DEPTH DISPLAY. DEPTH ALARMS AND UNITS OF MEASURE ARE SET IN NEHU. thescreen. upperrightcornerof A description of the screen showsintheboxatthe bottom ofthe screen. Nowpress thekeyadjacent to the "NEXT"label. This changes the displayed windowand description. When you've finishedviewing the windows, press theCLEARkey. Thetemperature ofwaterinthe lake isseldom constantfrom toptobottom. (Seethepicture on the nextpage. ) Layers ofdifferenttemperatures form, and the junctionof a warm and cool layer of wateris called athermocline. The depth and thickness of the thermocline can vary with the season or time of day. In deep lakes there may be two or moreat different depths. Thermoclines are important to fishermen because they are areas where fish are active. Many times baitfish will be above the thermoclinewhile largergame fish will suspend in or justbelow it. The Ultra III can detect this invisible layerin the water, but the sensitivity will probablyhaveto be turned up to see it. SURVEYING OPERATION AUTOMATIC Whenthe Ultra III isfirstturned on, the Automatic featureisenabled. [. . . ] Please follow the shipping instructions shown below on this page if you have to mail your unit to the dealer. For proper testing, repair, and service, send a brief note with the product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number. is 19 MENU-PAGE1 CHARTSPEED GRAYLINE® FISH ID FISHTRACICM DISPLAY CONTRAST 20 21 22 22 25 24 25 25 25 26 26 26 26 27 27 28 28 29 29 29 30 MLNU-PAGE2 ADJUST BACK LIGHT LEVEL BACK LIGHT ON/OFF SPEAKER VOLUME TURNDIGITAL BOXOFF/REMOVE DIGITAL DEPTH CONSTRUCT DIGITAL BOX When sending 1. Always use the original shipping container filler material the product was packed and in when shipping your product. Shipping Information a product forrepair, we recommend you do the following: MENU-PAGES CHARTCURSOR DISPLAY ZOOM BAR DISPLAY ZONE BAR DIGITAL SONAR 2 Always insure the parcel against damage or loss during shipment. [. . . ]