Figure 1.1: Z-Surveyor; Figure 1.2: Z-Fx(He) - ashtech Z-Surveyor Operation And Reference Manual

receiver operates stand-alone and as a base (reference) station or remote (rover)
station providing real-time differential GPS operation for code and real-time
kinematic (RTK) operation for carrier phase. The unit implements the RTCM SC 104
V2.2 standard for differential and RTK operation, including the newly defined
message types 18/19 and 20/21. These features allow the Z-Surveyor and the Z-FX to
achieve centimeter accuracy while being compatible for differential and RTK
operation with any other receiver that implements the RTCM standard.

Figure 1.1: Z-Surveyor

Figure 1.2: Z-FX(HE)

2 Z-Surveyor & Z-FX Operation Manual