... carrier phase measurements with <1 mm precision in a 1 Hz bandwidth4, Proven Trimble low elevation tracking technology Initialization time3 . . . . . . . . typically ... seconds Initialization reliability3 . . . . . . . . . . . . . . . . >99.9%5, 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 & 50 Hz positioning outputs (Defaults 10HZ)6, Up to 50 ...