User manual LOWRANCE RIM 100 INSTALLATION INSTRUCTION

[. . . ] 988-0161-001 www. lowrance. com Radar & RIM 100 Installation Instructions Radar Interface Module Copyright © 2006 Lowrance Electronics, Inc. No part of this manual may be copied, reproduced, republished, transmitted or distributed for any purpose, without prior written consent of Lowrance Electronics. Any unauthorized commercial distribution of this manual is strictly prohibited. Lowrance is a registered trademark of Lowrance Electronics, Inc. NMEA 2000 is a registered trademark of the National Marine Electronics Association. Lowrance Electronics may find it necessary to change or end our policies, regulations and special offers at any time. [. . . ] However, if there is a strong reflecting target near your boat, it sometimes may appear as a circular-arc false echo on the screen. D. Distant false echoes caused by duct phenomenon The duct phenomenon sometimes occurs when meteorological conditions create a temperature inversion between layers of air. When this happens, radar waves propagate erratically and can reach a location considerably farther away from your boat than the radar's maximum distance range. What appears onscreen is a false echo that looks to be nearer than the actual target. Since the true echo from the distant target is outside the measurement capabilities of the radar, its apparent distance will change when you change ranges, and you can conclude that it's a false echo. 3 Radar interference If another boat's radar is operating on the same frequency as yours, it can create interference on your display. The interference usually appears as spiral or radial patterns. This radar has an interference rejection control to eliminate interference. Turn it on to reduce or eliminate the interference. Installation Considerations Prior to actual installation of the radar scanner unit, several factors must be considered to assure maximum performance. Location The scanner must be located so that passengers and crew are not exposed to the direct radar beam. WARNING: To comply with FCC RF exposure requirements, the radar antenna for this scanner must be installed a minimum distance of 1 foot (0. 3 m) or more ABOVE all persons. This is a bad installation!If the mounting surface is thin, a doubler should be added. If it is thicker, longer bolts must be purchased. WARNING: The scanner will be damaged if bolts penetrate more than 9/16" (15 mm). Also, consider the cable route from the scanner to the operator's location. Avoid routing the interconnecting cable through areas of possible damage from moving objects, machinery, exposure to chemicals or high temperature. The radar should be installed at least 1 foot above all persons to pre- 6 vent microwave radiation exposure. It safely exceeds the recommended separation distance. 7 Section 2: Radar Installation Preparations Unpack your new radar and check the contents against the packing list. There are no connections or adjustments inside the unit that are needed for installation or operation. For ease of handling, coil the cable and place it on top of the scanner, then secure it with tape. Invert the scanner and make sure the four mounting holes are clear to accept bolts. Working at higher elevations may become necessary while installing the scanner unit. Observe safety measures and take sufficient precaution to avoid personal injury or damage to the equipment. WARNING: To comply with FCC radio frequency (RF) exposure requirements, the radar antenna for this scanner must be installed a minimum distance of 1 foot (0. 3 m) or more ABOVE all persons. Installation Procedure Prepare the mounting surface by making sure it is clean and flat. [. . . ] We reserve the right to do so without notice. . . . in Canada: If you're in Canada and you have technical, return or repair questions, please contact the Factory Customer Service Department. Before any product can be returned, you must call customer service to determine if a return is necessary. Many times, customer service can resolve your problem over the phone without sending your product to the factory. To call us, use the following toll-free number: 800-661-3983 905-629-1614 (not toll-free) 8 a. m. [. . . ]