User's Manual Part 1

Setup and Survey
HiPer XT Operator’s Manual
3-2
Step 1: Set up the Receiver
This section assumes the receiver has already been configured.
1. Place the receiver on the appropriate tripod or bipod.
2. Center the receiver over the point at which data will be collected.
For most applications, this should be at a location with a clear
view of the sky.
Step 2: Measure Antenna Height
The location of the antenna relative to the point being measured is
very important for both surveys in which the elevation of the points is
important and in surveys for horizontal location only. Horizontal
surveys are often larger in area than can reliably fit on a flat plane,
therefore the antenna adjustment must be done in three dimensions
and then projected onto a two dimensional plane.
The receiver calculates the coordinates of the antenna’s phase center.
To determine the coordinates of the station marker, the user must
specify the following:
• Measured height of the antenna above the station marker
• Method of measuring the antenna height
• Model of the antenna used
Antennas have two types of measurements:
• Vertical – measured from the marker to the antenna reference
point (ARP) located on the bottom of the receiver at the base of
the mounting threads.
• Slant – measured from the marker to the lower edge of the
antenna slant height measure mark (SHMM) located on both end
panels of the receiver.
1. Measure the antenna height above the point or marker.
Figure 3-1 illustrates the antenna offsets. (See Figure 1-5 on
page 1-15 and Figure 1-6 on page 1-16 for the exact SHMM
location.)