
8
Promark2 User’s Guide
Additional Items Required but not Supplied
In order to conduct your survey, you will need some of the additional equipment discussed
below. This equipment is not supplied with the standard ProMark2 survey system.
Tripod, Tribrach, and Tribrach Adapter
For each ProMark2 receiver in your system, you will need a tripod, tribrach, and tribrach
adapter, Figure 1.12, Figure 1.13, and Figure 1.14, to position the GPS antenna over the
survey point. The tribrach provides an optical sight and leveling adjustments that facilitate
accurately positioning the antenna over the survey point. The tribrach adapter slides into the
tribrach, providing the interface to the GPS antenna. Alternatively, you can use a range pole
(page 11).
Figure 1.12
Tripod, Tribrach, and Tribrach Adapter
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