1999 Nissan Pathfinder Owner's Manual - Page 98

ready when the system completes the dialing attempts. You can press the button again if you still need to contact the Communicator Response Center. Nissan Communicator automatically redials if communication between you and the Communicator Response Center is lost for some reason. The only way for a transmission to be officially terminated is for the Communicator Response Center to send an end transmission signal, which turns off the indicator in the or button. All information sent to the Communicator Response Center is recorded. If cellular signal strength is low, it is possible that Nissan Communicator will not be able to terminate the transmission. You may have to repress the button if you still need to contact the Communicator Response Center. If there is a natural disaster, such as an earthquake, all of the Communicator Response Center phone lines may become busy. The Nissan Communicator system in your vehicle will not attempt to recontact the Communicator Response Center. ton is pressed, your phone transmission will be cut so the Nissan Communicator system can contact the Communicator Response Center. vehicle by using the time differences of radio waves arriving from several GPS satellites. You cannot receive any Global Positioning System (GPS) data in areas where radio reception conditions are poor. In such cases, the latest GPS data received will be transmitted to the Communicator Response Center. Then, the Communicator Response Center will determine the reliability of the GPS data. If the quality of the data is too poor or if the data cannot be located, the Communicator Response Center operator will ask you for your vehicle's position. Factors such as topography, electronic interference or weather conditions may affect GPS data and transmission. ¼ Since radio waves from the GPS satellites may be obstructed when driving through tunnels, near tall buildings near densely planted trees, underneath double-deck expressways, or in-building parking lots, the signals may not be received. That is, the environment may prevent detection of vehicle position or cause errors. ¼ The US Department of Defense controls the GPS satellite signals. Therefore, signal transmission accuracy may drop or be suspended. Roaming If you have chosen a local cellular provider for your optional handset and the company that you have contracted with for your cellular phone does not have a roaming agreement for the area where your vehicle is within the 48 contiguous states, it may not be possible to use the lines of a different cellular phone company. Therefore, it is possible that Nissan Communicator will not be able to contact the Communicator Response Center. Data transmission During transmission to the Communicator Response Center, data will be collected on the type of call, vehicle location, direction and speed at the time of activation. Global Positioning System functions The Global Positioning System (GPS) is used to obtain the vehicle location. GPS satellites transmit radio waves and orbit around the earth at an altitude of approximately 13,000 miles (21,000 km). The GPS receiver calculates the three-dimensional position (latitude, longitude, and altitude from sea level) of the Priority Communicator Response Center dialing If you are using the optional cellular phone and the supplemental air bag inflates or the "Mayday" or the "Information" but- Instruments and controls 2-45