SkyView GPS Receiver: The SV-GPS-250 is a sensitive, WAAS enabled GPS receiver and antenna. The advantage of having the receiver packaged in one unit with the antenna, is that the output is a standard NMEA serial connection. A shielded antenna cable, with its inherent attenuation of signal and greater difficulty of routing, is not required to connect to the SkyView Display.
GPS Data: GPS latitude/longitude data is necessary for the SkyView to locate its position to display Synthetic Vision and the Moving Map. It is also necessary during calibration of the Remote Compass/Magnetometer, in order for SkyView to determine current location and the correct magnetic inclination.
Redundancy: An SV-GPS-250 is not necessary but highly recommended for the SkyView System. As a backup, NMEA standard GPS input can be utilized from a third party GPS receiver, but most GPS units output updates at 1/second, not 5/second like the SV-GPS-250 does. Another major advantage of the SV-GPS-250 is that it derives its power from a SkyView Display Backup Battery. So in the event of loss of ship's power the GPS will continue to be powered. Another advantage is the SV-GPS-250 is designed to be used with SkyView, and no setup is required.
Connections: Each SV-GPS-250 contains:
Four leads to attach to the SkyView Main Harness, including RX, TX, 8V, and Ground.