
Surveying with ProMark2
41
Surveyi
ng
with Pr
oMark2
System Setup
Now that the survey site is identified, it is time to set up the ProMark2 receiver system over the
point to be surveyed. The setup procedure is illustrated below.
1. Set up tripod / tribrach combination over the survey point.
This is done in precisely the same manner as for a conventional total station. If using
a fixed-height GPS tripod rather than a conventional tripod, a tribrach is not required.
2. Attach the vertical extension bar and a tribrach adapter to the GPS antenna.
With the GPS antenna in hand, attach the included vertical extension bar to the 5/8-11
thread on the bottom of the antenna. Attach a tribrach adapter to the other end of the
vertical extension bar. Figure 3.9 shows the individual pieces. The final assembly
should resemble that shown in Figure 3.10. If using a fixed-height GPS tripod rather
than a conventional tripod, a tribrach adapter is not required.
3. Place GPS antenna assembly on the tripod.
Be careful not to disturb the tripod when mounting the antenna assembly. Figure 3.10
shows what the setup should look like at this point.
Figure 3.9
GPS Antenna, Vertical Extension Bar, Tribrach Adapter Assembly
Summary of Contents for CGRS
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