
Surveying with ProMark2
39
Surveyi
ng
with Pr
oMark2
Performing a Static Survey with the ProMark2
The procedures for performing a static survey with the ProMark2 system can be broken down
into four primary categories:
equipment check
,
site selection
,
system setup
, and
data
collection
. Following the steps presented below should result in successful execution of your
GPS survey.
Note: Remember that data must be simultaneously collected between 2 or more
ProMark2 receiver systems in order to produce vectors between the receivers. Therefore,
the following procedures must be followed for each ProMark2 receiver system used in the
survey. There is no problem in setting up one ProMark2 receiver system and then moving
to another site to set up another. Just be aware that the observation time is determined by
the last receiver set up. For example, if you were alone and wanted to perform a survey
with a 2-receiver ProMark2 system, you could set up the first receiver and start data
collection. You could then move to the next site and set up the second receiver. Only when
the second receiver is collecting data does simultaneous data collection begin. All the data
collected by the first receiver up to this time is of no use and will be ignored during data
processing.
Equipment Check
Prior to leaving the office to perform your survey, be sure to perform a thorough check of your
GPS equipment:
1. Check through the ProMark2 system to ensure all components are present to
successfully perform the survey.
2. Check to ensure that you have sufficient battery power to complete the survey. Bring
along a spare set of batteries for insurance.
3. Bring along a copy of your network design and printout of the satellite availability
and distribution analysis. These will be needed throughout the course of your survey.
4. Ensure that each operator of a ProMark2 receiver has blank GPS observation logs to
utilize during data collection. Fill out one sheet for each observation of each point.
Observation logs will be discussed in more detail later in this section. Ashtech
Solutions processing software supports the ability to print blank observation logs for
use during data collection.
With the equipment check completed, it’s time to move to the field to perform your survey.
Site Selection
Proper site selection of performing GPS data collection is critical to the success of your survey.
Not all sites are appropriate for GPS data collection. GPS depends on reception of radio
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