Rover System Troubleshooting; Gps Receiver Does Not Track Satellites; Radio Not Receiving Data Transmitted By Base - Thales Z-Max Operation And Application Manual

Rover System Troubleshooting

The Z-Max rover system has three basic functions: track satellites in order to collect
raw satellite data at its position, receive base position satellite data transmitted by the
base system radio, and finally, process the rover satellite data and the base satellite
data together to compute the precise position of the rover location. The rover system
must be able to carry out all three of these primary functions in order for the RTK
system to work. Let's examine the recommended steps in troubleshooting a problem
in each of these three functions.

GPS Receiver Does Not Track Satellites

Tracking satellites is an important function of both the base and rover systems. The
process of troubleshooting this problem on the rover system is identical to that on the
base system. Refer to the base system troubleshooting section above for details.

Radio Not Receiving Data Transmitted By Base

The base GPS receiver by default is set to send data to the base radio once every
second. The base radio will transmit this data immediately upon receiving it.
Therefore, the rover radio should be receiving data from the base once every second.
The receive LED on the front panel of the rover radio, or in the case of an internal
radio on the front panel of the GPS receiver, will blink green each time a packet of
good quality data is received. After examining this LED, you determine that the rover
system is not receiving data. Follow the outline below to troubleshoot this problem.
Step 1. Is the rover radio powered up?
When using the Communication Module with the UHF radio, there is no action
required to power up the radio other than to power up the GPS receiver. This
automatically applies power to the radio. If using the Communication Module, go to
step 2 below.
260 Z-Max Surveying System Operation and Applications Manual