The Microstack GPS is a L80 ultra slim POT (Patch on Top) module with an embedded 15mm x 15mm patch antenna. This Microstack module adds GPS positioning functions to all platforms compatible with the Microstack framework. This space saving design makes L80 module to become perfect for the miniature devices. L80 has an exceptional performance both in acquisition and tracking. Combining advanced AGPS called EASY (Embedded Assist System) and proven AlwaysLocate technology, L80 achieves highest performance and meets industrial standard. EASY technology ensures L80 can calculate and predict orbits automatically using the ephemeris data stored in internal flash memory, so L80 can fix position quickly even at indoor signal levels with low power consumption. With AlwaysLocate technology, L80 can adaptively adjust the on/off time to balance between positioning accuracy and power consumption according to the environmental and motion conditions.