Lowrance X102C - Manual

3 4,000 watts peak-to-peak/500 watts RMS. X102C: 2,400 watts peak-to-peak/300 watts RMS. Sonar soundingdepth capability: ........... X107CDF: 2,500 feet (762 meters). X102C: 800 feet (244 meters). Actual capability depends on transducer con-figuration and installation, bottom composi-tion and water ...

4 The transmitter emits an electrical impulse, which the transducer con-verts into a sound wave and sends into the water. (The sound frequencycan't be heard by humans or fish.) The sound wave strikes an object(fish, structure, bottom) and bounces back to the transducer, whichconverts the sound back ...

5 For example, instructions for turning on the Fish ID  feature would look like this: 1. From the Sonar Page, press MENU | ↓ to S ONAR F EATURES | ENT . 2. Press → to F ISH S YMBOLS | ENT | EXIT | EXIT . Translated into complete English, step 1 above would mean: "Start onthe Sonar Page. Press t...

7 Section 2: Installation & Accessories Preparations You can install the sonar system in some other order if you prefer, butwe recommend this installation sequence: Caution: You should read over this entire installation section before drill-ing any holes in your vessel! 1. Determine the approxim...

9 boat hulls have a flat keel pad that offers a good mounting surface. Onvee hulls, try to place the transducer where the deadrise is 10 ° or less. Left, vee pad hull; right, vee hull. A pod style transducer is shown here, but the principle is the same for Skimmers inside a hull. 4. If the transduce...

10 Align transducer centerline with hull bottom. However, there are times when you may need to adjust the transducerslightly higher or lower. (The slots in the mounting brackets allow youto loosen the screws and slide the transducer up or down.) If you fre-quently lose bottom signal lock while runni...

11 on your sonar display. (This is not an issue for flasher-style sonars.)Lack of angle adjustment can be particularly troublesome on hulls thatsit with the bow high when at rest or at slow trolling speeds. Third, a transducer CAN NOT shoot through wood and metal hulls. Those hulls require either a ...

12 Place the ratchets into the bracket with the letter "A" aligned with thealignment mark molded into the bracket. Place the ratchets onto thetransducer with the letter "A" aligned with the 12 o'clock position onthe transducer stem. These positions set the transducer's coarse anglead...

13 If the transducer's face isn't parallel with the ground, remove thetransducer and ratchets from the bracket. Place the ratchets into theholes in the bracket with the letter "B" aligned with the dot stampedin the bracket. Reassemble the transducer and bracket and place them against thetran...

14 Assemble transducer and bracket. 3. Assembling the transducer. A. One-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the following fig-ure. Don't tighten the lock nut at this time. Assemble transducer and bracket. B. Two-piece bracket:...

15 Position transducer mount on transom and mark mounting holes. Side view shown, left, and seen from above at right. 5. Attaching transducer to transom. A. One-piece bracket: Remove the transducer from the bracket and re-assemble it with the cable passing through the bracket over thebolt as shown i...

17 Trolling Motor Bracket Installation(single-frequency only) 1. Attach the optional TMB-S bracket to the transducer as shown in the following figure, using the hardware supplied with the transducer.(Note: The internal tooth washer is supplied with the TMB-S.) Attach motor mounting bracket to transd...

18 Transducer angles and their effects on fish arches. If the arch slopes up – but not back down – then the front of the trans-ducer is too high and needs to be lowered. If only the back half of thearch is printed, then the nose of the transducer is angled too far downand needs to be raised. NOTE: P...

19 WARNING: Do not remove any material from your inner hull unlessyou know the hull's composition. Careless grinding orcutting on your hull can result in damage that could sinkyour boat. Contact your boat dealer or manufacturer toconfirm your hull specifications. Epoxy the transducer to a solid port...

20 To choose the proper location for shoot-thru-hull mounting, follow thesetesting procedures: (You may need a helper to complete these steps.) 1. Anchor the boat in about 30 feet of water. Add a little water to the sump of the boat. Plug the transducer into the sonar unit, turn it on,then hold the ...

21 4. Most people can get good results by following steps 1 through 3, so this step is optional . If you want to make an extra effort to be absolutely sure that your selected location will work under all conditions, make a testrun with the boat on plane and observe the bottom signal. You'll need tof...

22 2. The epoxy consists of the epoxy itself and a hardener. Remove the two compounds from the package and place them on the paper plate. Thoroughly stir the two compounds together until the mixture has auniform color and consistency. Do not mix too fast or bubbles willform in the epoxy. After mixin...

23 sor on the transom. The bottom of the bracket should be flush with thehull's bottom. Using the sensor as a template, mark the hull for thescrews' pilot holes. Drill four 1/8" holes, one in each end of the slots. Mount the sensor to the hull using #8 stainless steel wood screws (notincluded). ...

24 Sonar unit cable connections. Power Connections Your unit comes with a power/data cable that splits into three ends,each with several exposed wires (shown in the following figure). Theend with 4 wires (blue, yellow, orange and shield will not be used withyour unit. The end with three wires (red, ...

26 Powering Your Unit(Power Supply cable – red and black wires) The unit works from a 12-volt battery system. For the best results, at-tach the power cable directly to the battery. You can attach the powercable to an accessory or power buss, however you may have problemswith electrical interference....

27 Power connections for X102C and X107CDF sonar units. NOTE If you're powering a NMEA 2000 buss, you will attach both the NMEA 2000 Power cable and the unit's Power Supply cable to the boat's battery. To attach the NMEA 2000 Power cable, connect thered wire to battery's + and black and shield wires...

29 Install the gimbal bracket. Orient the bracket so the arms slope toward the front of your unit. Drill a 1-inch (25.4 mm) hole in the dash for the power and transducercables. The best location for this hole is immediately under the gimbalbracket location. This way, the bracket can be installed so ...

30 After drilling the hole, pass the transducer connector up through the hole from under the dash. Pass the power cable's bare-wire end down though the hole from the top. If you wish, you can fill in the hole around the cables with a good ma-rine caulking compound. (Some marine dealers stock cable h...

31 Portable Installation Like many Lowrance products, the unit is capable of portable operationby using an optional portable power pack. The power pack, a magnet-equipped antenna module and an optional portable transducer, expandsthe uses for your sonar/GPS unit. It makes it easy to transfer your un...

33 Section 3: Basic Sonar Operation This section addresses the unit's most basic sonar operations. The in- structions presented here in Sec. 3 follow a chronological order. Sec. 4, Sonar Options & Other Features , will discuss options and other more advanced functions and utilities. The material...

34 4. ARROW KEYS – These keys are used to navigate through the menus, make menu selections, move the sonar chart cursor and enter data. 5. ENT (Enter) – This key allows you to accept values or execute menu commands. 6. EXIT – The Exit key lets you return to the previous screen, clear data or erase a...

35 Main Menu. Main Menu Commands There are four "basic" Main Menu commands that you'll really want toread more about. They are: • Screen command: changes the contrast or brightness of the display screen. Use this command to adjust how the screen looks under variouslighting conditions. • Soun...

36 • Calibrate Water Speed command: adjusts how a speed sensor measures water speed. • Reset Water Distance command: resets water distance log to zero. • Sonar Simulator command: turns the simulator feature on and off. Useful for learning how to operate the unit and all its functions. • Transducer T...

37 • Depth Range command: manually sets the depth range shown on the sonar chart. • Auto Depth Range command: automatically sets the depth range shown on the sonar chart to always keep the bottom in view. • Upper and Lower Limits command: sets the upper and lower depth limits of the sonar chart. Let...

39 Sonar chart display options (from left) split zoom (all models) and split frequency (X107CDF only). Sonar chart display options (from left) digital data and FlashGraf. You can customize how the Sonar Page pictures and other data are dis-played in many ways. We'll discuss all of those features and...

40 Basic Sonar Quick Reference 1. Mount the transducer and unit. Connect the unit to electric powerand the transducer. 2. Launch your boat. 3. To turn on the unit, press and release PWR key. 4. Head for your fishing grounds. Your unit automatically displays digi-tal depth and surface water temperatu...

41 Sonar Operations As you can see from the quick reference on the previous page, basic operationis pretty easy, right out of the box. If you are a sonar novice, try operating theunit with the factory defaults until you get a feel for how it's working. As you're learning the basics, there is one set...

43 NOTE: If you want to change the sensitivity in Manual Mode, first turn offAuto Sensitivity: from the Sonar Page, press MENU | ↓ to A UTO S ENSITIVITY | ENT | ↑ to S ENSITIVITY | ENT . Press ↓ or ↑ to pick a different sensitivity setting. When it's set at the desired level, press EXIT . Important ...

44 Other Free Training Aids The sonar options section discusses Fish I.D., fish alarms and otherfeatures in greater detail. If you or a friend has Internet access, you canalso learn more about interpreting what you see on your sonar screen.Visit our web site, WWW.LOWRANCE.COM . Be sure to check out ...

45 Section 4: Sonar Options & Other Features Material in this section is arranged in alphabetical order. ASP  (Advanced Signal Processing) The ASP  feature is a noise rejection system built into the sonar unit that constantly evaluates the effects of boat speed, water conditionsand interferenc...

46 Alarms This unit has three different types of sonar alarms. The first is the FishAlarm. It sounds when the Fish I.D.  feature determines that an echo is a fish. Another alarm is the Zone Alarm, which consists of a bar on the side ofthe screen. Any echo on the chart that appears inside this bar t...

47 4. Press ← to S HALLOW A LARM E NABLED | ENT | EXIT . 5. To turn off the alarm, press A LARM | ENT | EXIT . To switch to a different depth setting, open the Sonar Alarms menu andrepeat the instructions in step 3 above. To adjust and turn on the deep alarm 1. . Press the A LARM key on the front of...

48 4. To set the lower boundary for the Zone Alarm, use ← or → to select L OWER , then press ↑ or ↓ to move the bottom of the bar to the desired depth. 5. Press EXIT | ← to Z ONE A LARM E NABLED | ENT | EXIT . Now, any echo — fish, bottom, structure — within the zone alarm's depth range will trig-ge...

49 Calibrate Speed The speed sensor can be calibrated to compensate for inaccuracies. Be-fore you change the setting, first calculate the percentage that thespeed is off. You will enter this percentage in a moment. For example, if you figure the sensor is reading 10 percent faster thanactual speed, ...

50 If you are at anchor, ice fishing or fishing from a dock, experiment witha chart speed around 50 percent. If you are drifting slowly, try a chartspeed around 75 percent. When you are stationary and a fish swimsthrough the sonar signal cone, the image appears on the screen as along line instead of...

51 the other without, then the target with brighter color (yellow) is thestronger signal. This helps distinguish weeds from trees on the bottom,or fish from structure. ColorLine is adjustable. Experiment with your unit to find the Color-Line setting that's best for you. To adjust the ColorLine level...

52 Depth Range - Automatic When turned on for the first time, the bottom signal is automaticallyplaced in the lower half of the screen. This is called Auto Ranging andis part of the automatic function. However, depending upon the bottomdepth and the current range, you can change the range to a diffe...

53 NOTE: The sonar's depth capability depends on water and bottom condi-tions, transducer installation and other factors. Depth Range - Upper and Lower Limits Virtually any segment of the water column can be displayed by usingthe upper and lower limit feature. This lets you pick the deep andshallow ...

54 Normal display, in auto depth range mode, left. Right, display "zoomed" with Upper and Lower Limits focusing on the portion of the water col- umn from 20 feet to 40 feet deep. In the "zoomed" image, note the target definition at lower left, showing a fish holding just above the st...

56 Left, figures 1A and 2A show Sonar Page in normal chart mode. Right, figures 1B and 2B show the same underwater scene with Fish I.D. turned on. Note how arches are replaced with symbols. To turn the Fish I.D. feature on 1. From the Sonar Page, press MENU | ↓ to S ONAR F EATURES | ENT . 2. Press →...

57 NOTE These instructions will turn on FishTrack and Fish I.D. at thesame time. To turn off FishTrack, repeat the instructions in step 2. Turning offFishTrack in this manner will not turn off Fish I.D. symbols. Sonar Features menu with Fish I.D. Depths selected (Left, dual- frequency menu; center, ...

58 Sonar Features menu with a frequency of 200 kHz selected. To change the frequency setting to 50 kHz 1. From the Sonar Page, press MENU | ↓ to S ONAR F EATURES | ENT . 2. Press → |then press ↓ to 50 K H Z | ENT . 3. Press EXIT | EXIT to clear the menu. To change the frequency setting to 200 kHz 1....

60 2. Press ↓ or ↑ to select Data Type |press → or ← to Data Size | EXIT . The selected data type will be displayed in the new size. (To change thefont size for another Data Type, repeat step two above.) 3. To return to the previous page, press EXIT . Sonar chart with Overlay Data turned on. This ex...

61 Left, Sonar Menu with Ping Speed command selected. Ping Speed Control Bar, right, at default setting. To change Ping Speed 1. From the Sonar Page, press MENU | ↓ to P ING S PEED | ENT . 2. The Ping Speed Control Bar appears. Press ↑ to increase ping speed. Press ↓ to decrease ping speed. When it'...

62 To set up Popup Help: Press MENU | MENU | ↓ to P OPUP H ELP . With the option highlighted, press ENT to check it (turn on) and uncheck it (turn off.) After the option is set, press EXIT to return to the page display. Main Menu, left, with Pop-up Help command highlighted. Right, this example shows...

63 Reset Water Distance The sonar chart's Digital Data display option includes a window thatshows distance traveled, called Water Distance ("W Distance"). Thisinformation is calculated from an optional water speed sensor. The Wa-ter Distance window can be reset to zero using the Reset Water ...

64 Display Mode menu. Sensitivity & Auto Sensitivity The sensitivity controls the ability of the unit to pick up echoes. Sensi-tivity can be adjusted, because water conditions vary greatly. A lowsensitivity level (from zero to 50 percent) excludes much of the bottominformation, fish signals, and...

65 ability to set it anywhere from zero to 100 percent. Once you select alevel in manual, the unit will continue to use that exact sensitivity set-ting until you change it or revert to auto mode. To adjust sensitivity in auto mode: 1. Press MENU | ENT . 2. The Sensitivity Control Bar appears. Press ...

66 changes on the screen as you press the up or down arrows. This ishandy when there's a lot of clutter in the water, and you arematching the sensitivity to rapidly changing water conditions. Set Keel Offset This unit measures water depth from the face of the transducer. Sincethe transducer is insta...

67 3. Press → to the first number, then ↑ to change the number to 1. 4. Press → to the second number, then ↑ to change the number to 5. Press EXIT to return to the previous page . The depth indicators now accurately show the water depth from surface to bottom. Set Language This unit's menus are avai...

68 Background, White Background, Nightview, IceView and Bottom ColorTracking. To change the chart mode color scheme 1. From the Sonar Page, press MENU | ↓ to S ONAR F EATURES | ENT . 2. Press → then, ↓ to S ONAR C HART M ODE | ENT . 3. Press ↓ or ↑ to Mode Name | ENT . 4. Press EXIT | EXIT to return...

69 Full Sonar Chart. The Overlay Data (depth and water temperature) are both set to the small text size. Split Zoom Sonar Chart A split chart shows the underwater world from the surface to the bot-tom on the right side of the screen. The left side shows an enlarged ver-sion of the right side. The zo...

70 Split Frequency Sonar Chart page, with 50 kHz view (left) and 200 kHz view (right). You can adjust the sensitivity in each window. To adjust sensitivity in auto mode 1. Press MENU | ENT . 2. The unit asks which you wish to adjust. Press ← or → to select the one you want | ENT . 3. The Sensitivity...

71 Digital Data/Chart Customizing the Digital Data/Chart Screen The Digital Data/Chart can be customized to show digital data in theorder of your preference. To rearrange the data on this screen: 1. From the Digital Data Page, press MENU | ↓ to C USTOMIZE | ENT . Left, the Customize command selected...

72 Options List for customizing Digital Data windows. FlashGraf  The FlashGraf sonar page option represents a flasher style sonar com-bined with a scrolling chart. A circular dial shows all returning echoesat a high screen refresh rate. It uses the Colorline feature to distinguish between strong an...

73 1. From the Sonar Page, press MENU | MENU | ↓ to S ONAR S IMULATOR | ENT . 2. Turn off Sonar Simulator by pressing MENU | MENU | ↓ to S ONAR S IMULATOR | ENT | EXIT . NOTE: If you turn on your unit before attaching a transducer, it may entera demo mode. The words "demo mode" flash on the ...

74 To adjust the Surface Clarity level 1. From the Sonar Page, press MENU | ↓ to S ONAR F EATURES | ENT . 2. 2. Press ↓ to S URFACE C LARITY | ENT . 3. 3. Press ↓ or ↑ to select clarity level | EXIT | EXIT | EXIT . Sonar Features menu with Surface Clarity selected (Left, dual- frequency menu; right,...

75 Left, Main Menu showing Transducer Type command selected. Right, the Transducer Type menu, showing your three options. Transparency Use the transparency menu to adjust the transparency of menu win-dows. A high transparency allows you to continue monitoring thescreen's display while adjusting feat...

76 Main Menu, left; Units of Measure Menu, right. To set Speed/Distance Unit of Measure To modify Depth, Press ↑ or ↓ , then ENT. Press ← or → , ↑ or ↓ | ENT to change Speed and Distance. Use ↑ or ↓ , then ← or → | ENT , to modify Temperature. After the options are set, press EXIT|EXIT to return to ...

77 Left, full sonar chart zoomed 2X. Right, same view zoomed 4X. Zoom Pan Your unit has the handy ability to quickly zoom in on any portion of thewater column with just the touch of an arrow key. The Zoom Pan featurelets you rapidly move the zoomed area up and down to different depths.By "pointi...

79 Section 5: Sonar Troubleshooting If your unit is not working, or if you need technical help, please use thefollowing troubleshooting section before contacting the factory customerservice department. It may save you the trouble of returning your unitfor repair. For contact information, refer to th...

85 LOWRANCE ELECTRONICS FULL ONE-YEAR WARRANTY "We," "our," or "us" refers to LOWRANCE ELECTRONICS, INC., the manufacturer ofthis product. "You" or "your" refers to the first person who purchases this product as aconsumer item for personal, family or household...

86 How to Obtain Service… …in the USA: We back your investment in quality products with quick, expert serviceand genuine Lowrance parts. If you're in the United States and youhave technical, return or repair questions, please contact the FactoryCustomer Service Department. Before any product can be ...

Accessory Ordering Informationfor all countries To order Lowrance GPS accessories such as computer cables or MMCcards, please contact: 1) Your local marine dealer or consumer electronics store. Most quality dealers that handle marine electronic equipment or other consumerelectronics should be able t...

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