GPS module

Detailed Product Description
MM-520 MM-520 is a completed solution of GPS by using Ideal module which designed with the single chip core of SiRF Star III to provide GPS the best performance of using the products. Its high sensitivity can fix the position in any worse environment. MM-520 tracks up to 20 satellites at a time, and shows more than 12 localization massage, this make wireless application close to the life demand. It communicates with other electronic utilities via compatible dual-channel through RS-232 or TTL and saves critical satellite data by builtin backup memory . The built-in recharge battery can conserve Almanac Data. The superior performance of " TTFF " (Time to First Fix ) can fix the position rapidly. It allows the unit operates a fraction of the time and Push-to-Fix permits user to have a quick position fix even though the receiver usually stays off. General GPS Chip SiRF Star III Frequency L1, 1575.42MHz C/A Code 1.023MHz Chip Rate Channels 20Channel all-in-view tracking Built-in low noise patch antenna Accuracy Position 10 meters, 2D RMS 5 meters, 2D RMS, WAAS Enabled Velocity 0.1 meter/sec without S/A Time 100ns synchronized to GPS time Datum WGS-84 Sensitivity -159dBm tracking Acquisition Rate Cold Start 42 sec (average, open sky) Warm Start 38 sec (average, open sky) Hot Start 3 sec (average, open sky) Reacquisition 0.1 sec, average