Profile: Navtech Systems Ltd specializes in GPS aided video transmission systems. The OEM Interface® assembly components consist of the mother board with 9-15 V DC input isolated DC/DC converter, input RF connections, crescent antenna i/p and I/O interface, 2 channel RS232 serial driver and mounting assembly. Our GPS diplexer NTS-DP1 enables two GPS receivers to share a single antenna. Using a combined low noise amplifier and power by-pass circuitry, the GPS antenna will supply amplified GPS signals to one or both receivers connected to the outputs. Antenna power supplied by either GPS receiver is by-passed to the antenna, to enable active antennas to be used as the primary signal source on any GPS installation.