User manual ICOM GP-270

[. . . ] However, once it has been dropped, high-pressure water jet resistance cannot be guaranteed because of possible damage to its case or the waterproof seal. DO NOT use or place the GPS receiver in areas with temperatures below ­20°C (­4°F) or above +60°C (+140°F). DO NOT use chemical agents such as benzine or alcohol when cleaning, as they can damage the GPS receiver's surfaces. [. . . ] The GPS receiver is only for the specified Icom equipment such as MarineCommander TM or MA-500TR!--Other manufacturer's equipment may have different pin assignments and can damage the equipment or GPS receiver if attached. SUPPLIED ACCESSORIES Item Qty. q Hose clamp (HAS-40) . . . . . . . . . . . . . . . . . . . . . . . . . . 2 w Extension pipe (2273 pipe) . . . . . . . . . . . . . . . . . . 1 e GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 q e This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. w ABOUT CE CE Versions of the GP-270 which display the "CE" symbol on the serial number seal, comply with the essential requirements of the European Radio and Telecommunication Terminal Directive 1999/5/EC. This warning symbol indicates that this equipment operates in nonharmonised frequency bands and/ or may be subject to licensing conditions in the country of use. We recommend that you place the GPS receiver in the desired location temporarily, and see if it receives any interference. ATTENTION About calculating position The GPS receiver acquires signals from GPS satellites. It calculates its position by the orbit information of the GPS satellites and needs to measure the distance between itself and three or more GPS satellites to obtain a reliable position. The GPS receiver acquires all available satellites when it is powered up. Normally, it takes approximately 1 minute for determining a position. In places where the GPS signals cannot reach the GPS receiver, such as around tall buildings, it may show position errors (misplacement) or no position reading at all. As the satellites are continuously moving, measurement of the position or time by the GPS receiver may take a while, and/or no position reading can be made in some instances. Even if the GPS receiver acquires signals from three or more GPS satellites, it may take a longer time to determine a position depending on the satellite locations. Location precision The GPS receiver automatically calculates its position when it acquires signals from three or more GPS satellites. The GPS satellite's measurement error is about ±10 meters, however this can vary up to several hundred meters, depending on the surrounding environment. [. . . ] Even if the GPS receiver acquires signals from three or more GPS satellites, it may take a longer time to determine a position depending on the satellite locations. Location precision The GPS receiver automatically calculates its position when it acquires signals from three or more GPS satellites. The GPS satellite's measurement error is about ±10 meters, however this can vary up to several hundred meters, depending on the surrounding environment. The GPS information and its accuracy varies, depending on the GPS system being acquired, place and time. About NMEA sentence When the current position data cannot be received due to the GPS signal being blocked by something, the GPS receiver sends the last memorized NMEA sentence, but the sentence may include invalid data. ï Installation The supplied extension pipe is to be inserted firmly into the base of the GPS receiver and screwed in a clockwise direction. [. . . ]