GlobalSat EB-3531 is an engine board which is very needed to plant in your handheld GPS. Its designed in a compact size with high performance of SiRF star III GPS chipset. But the most interesting point of the EB-3531 GPS engine board is, it provides a low power consumption.

I have no idea is you GlobalSat GPS portable already support with this engine board. Because if your GPS already planted with EB-3531, your GPS chipset will able to track 20 sataelites in the same time and also able to perform TTFF in weak signal environments. GlobalSat EB-3531 GPS Engine Board measures about 15×13x2.2mm and also featured by Two serial ports, 4Mb flash, Built-in LNA , NMEA 0183 and SiRF binary protocol.