Spectra Precision ProMark 800 Reference Manual User Manual
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Precise Surveying - Field Applications & Concepts
3. Successful survey requires proper initialization of the
system. See Initialization on page
To maintain initialization throughout the survey, and
especially in kinematic surveys, be careful at all times not
to mask the rover’s GNSS antenna.
For most Spectra Precision receivers, in case of poor
reception or complete loss of satellite signals, a message
will prompt you to resume initialization.
4. The common observation time is determined by the last
unit set up (start) and the first unit turned off (end). It is
advisable to start the base first and turn it off last.
5. The required observation time mainly depends on the
baseline length, the reception conditions, the number of
GNSS constellations and signal frequencies tracked by
the receiver and the initialization method used. See
6. Remember the rover will always collect data continuously
throughout the survey, whether you are performing a
static, continuous kinematic or Stop & Go kinematic
survey. That is why you should continually keep the GNSS
antenna clear of any obstructions.
If satellite lock is broken by obstructions, you will need to
collect additional data after the tracking resumes before
continuing. This data is used by the post-processing
software to re-determine the ambiguities. The amount of
data needed for re-initialization is the same as for the
original initialization as discussed above.
7. There can be several rovers logging data at the same time.
Static Survey
Typical Use
Surveying a New Control Point.