User manual LOWRANCE LMS-150 LORAN

[. . . ] LMS-1 50 c. INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U. S. A. 988-0119-28 I®LQWRAfjcE ELECTRONICS, INC. SKELLY DR. , TULSA, PDF compression, OCR, web-optimization with CVISION's PdfCompressor OK 74128 NOTES: Copyright© 1991, 1992, Lowrance Electronics, Inc. All rights reserved. All sonar and loran screens in this manual are simulated. Features and specifications subjectto change without notipe. CAUTION This loran receiver (like all loran navigation equipment) will show the shortest, most direct path to a waypoint. It provides navigation data to the waypoint, regardless of obstructions. Therefore, the prudent navigator will not only take advantage of all available navigation tools, . but will also visually check to make dertain a clear, safe path to a waypoint is always available. WARNING! [. . . ] In medium to deep water, this method shouldwork to display fish arches. If you see fish signals when the unit is in the ?nanual mode, but don't get fish symbols when the Fish ID. The antenna should be placed in an open area on the boat, away. from other antennasor structure. Waypoint mustbe recalled to use cross track error feature. 5. IMPORTANT SERVICE INFORMATION! If your unit is not working, or if you need technical help, please use the followingtroubleshooting sectionbefore contacting a servicecenterorthe. It may save you the trouble of returning your unit. Loses lock while boat is moving: a. The red wire connects to the positive baftery terminal, black to negative or ground. 3. It should PDF compression, OCR, web-optimization with CVISION's PdfCompressor 80 41 be at least 11 volts. If it isn't, thewiringto the unit isdefective, thebattery terminals or wiring on the terminals are corroded, or the battery needs charging. LORANTROUBLESHOOTING 1. You must have an 8' antenna. Preferably, the entire length of antenna should be higherthan anything else on the boat. the H Unit freezes, locks up, or operates erratically: 1. Electrical noisefrom the boat'smotor, trollingmotor, or an accessory may be interfering with the sonar unit. Re-routing the power and transducercablesawayfromother electrical wiring ontheboat may help. Route the sonar unit's power cable directly to the battery instead of through a fuS blockor ignitionswitch 2 For best results, wire the power cable directly to the battery preferabIy the main engine's cranking battery. This assures the boat will be grounded, sincethe lower unit is in the water. If you're using the loran on land, keep away from trees, buildings, and (most important) power lines. The loran will not work inside a building, or under a metal carport, shed, etc. (NOTE: These units are designed for marine (boating) purposes and generally work best on thewater. ) 4. transducer, reducingits effectiveness. Ifthetransducer mounted inside is the hull, be sure it is shooting through onlyone layerof fiberglass andthat it is securely bonded to the hull. Do NOT use RTV silicone rubber adhesiveor MarinetexTM. If you're having trouble with the unit locking on to the stations, you mayhave a piece of gear such as a radio, bilge pump, orengine that is causing interference. Enterthe initial position first, If that doesn't work, then try the OR!. If the unit still doesn't lock on, then look for other sources of interference. This causes the sonar to automatically increase its Discrimination or noise rejectionfeature. Thiscancausethe unitto eliminate weaker signalssuch as fish or even structurefrom thedisplay. Land Sources: 1. If thesonar can'tfindthe bottomsignalwhile it's in the automatic mode, the. [. . . ] The last display on this screen is the waterdepth (DEPTH) display. A screen similar to this I LN 330 12:37' 11 24°4676' - The flashing cross is your present position. The circle is a compass rose with north, south, east, and west marked. If your present position starts to move outside of the circle, the LMS-150 will first clear the display for an instant. Then it will redraw your present position along with a portion of your track near the center of the screen. [. . . ]