The GPS NAVPAC VP-200 is the integration of a high performance GPS receiver and an active GPS antenna in a very compact/weatherproof enclosure, which mounts just like an antenna! It outputs Lat/Lon, Time, Speed, Course, and Satellite Data in standard NMEA0183 protocol and at RS232 level which can be linked directly to a broad range of navigation equipment such as plotters, sounders, radar, fishfinders, and electronic charts for navigation on GPS 24 hours a day at free of charge. The NAVPAC VP-200 is capable of operating over a wide range of unregulated input voltages with low power consumption by the use of a built-in switching regulator. Its GPS receiver and associated circuit are properly shielded with metal frames to prevent interference induced by other radio transmitting equipment. When input with RTCM SC-104 correction data, the NAVPAC VP-200 is capable of processing differential GPS (DGPS) real time to provide the user with a low cost solution for obtaining a higher positioning accuracy. With the most advanced GPS receiver and antenna design, the NAVPAC VP-200 has been proven to have exceptionally high performance even under the most adverse condition. It continues to track on satellites and provides GPS data during severe pitching and rolling in navigation. It is also proven to be able to re-acquire the satellites and fix on the position very quickly after a short period of signal obstruction. In brief, the NAVPAC VP-200 facilitates GPS upgrades on your existing equipment and offers you immediate value in terms of equipment savings and also exceptional GPS navigation performance!