Mounting Accessories; Figure 2.11 Hi Measurement Plate - Thales Z-Max Operation And Application Manual

Mounting Accessories

When using the Z-Max system to perform RTK surveys, various accessories are
required to mount the receiver to the tripod, the rover survey pole or the backpack.
Each of these accessories and their purpose are described in this section. How they
fit into the equipment set up will be covered in Chapter 3 - Hardware Connectivity
and Chapter 4 - RTK Survey Preparation.
HI Measurement Plate - An accurate measurement of the height of the antenna
above the survey mark is very important. However, when the Z-Max System is
attached to a tripod there is not enough clearance to measure the antenna height
from the survey mark to the GPS antenna. The HI Measurement Plate (Figure
2.11) provides a convenient location on the system to where the slant height of
the antenna above the survey mark can be consistently and accurately
measured. It attaches to the system between the bottom of the GPS Receiver
Module and the tribrach. The HI Measurement Plate is only used when the Z-Max
system is a base station receiver. The HI Measurement Plate is not necessary
when using a fixed-height tripod.
Pole Adapter - The Pole Adapter, Figure 2.12, is used with the RTK rover system
whenever the UHF Radio Antenna Module is not used. The Pole Adapter is
essentially an empty UHF Antenna Module. The Pole Adapter raises the GPS
Antenna module high enough on the survey pole so that the antenna's view to the
satellites is not blocked by the user. The Pole Adapter attaches to the survey pole
and connects between the GPS Antenna Module and the GPS Receiver Module
when using a pole-mounted system, or between the GPS Antenna Module and
the Range Pole RF Adapter (see below) when using a backpack-mounted
system.
172

Figure 2.11 HI Measurement Plate

Z-Max Surveying System Operation and Applications Manual