12 parallel channel GPS receivers Differential ready with RTCM-104 Accuracy better than 15m Available with USB (Universal Serial Bus) or Serial connectors The Garmin GPS 35 Trac Pak is a complete GPS receiver & embedded antenna designed for a broad spectrum of OEM Original Equipment Manufacturers system applications. Based on the proven technology found in other Garmin 12channel GPS receivers the GPS 35 will track up to twelve satellites at a time while providing one-second navigation updates & low power consumption. Its far-reaching capability meets the sensitivity requirements of land navigation as well as the dynamics requirements of high-performance aircraft. The GPS 35 Trac Pak design utilizes the latest technology & high-level circuit integration to achieve superior performance while minimizing space & power requirements. Utilizing Garmins own proprietary chipset all critical components of the system including the RFIF receiver hardware & the digital baseband are designed & manufactured by Garmin to ensure outstanding quality & capability. The GPS 35 Trac Pak is housed in a black water-resistant case & designed to withstand rugged operating conditions. While the GPS 35 Trac Pak is designed as a plug n play GPS solution the minimum system must provide a source of power & a clear view of the GPS satellites. The system may communicate with the GPS 35 via two RS-232 compatible bi-directional communication channels. Internal memory backup allows the GPS 35 to retain critical data such as satellite orbital parameters last position date & time. The PC version features an attached 10 foot powerdata cable with USB (Universal Serial Bus) connection ready to attach to your PC. The RS232version has an additional 8 foot power cable extension that terminates in a cigarette lighter plug for easy application of power supply voltage between 6 & 40v DC. It also features an asynchronous serial data interface via a single serial port with true RS-232 voltage level output.