Spectra Precision ProMark 800 Reference Manual - Manual (Page 63)

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Precise Surveying - Field Applications & Concepts
• Stopping recording sessions before enough data has been
collected to guarantee initialization.
For this reason, you should be aware of the initialization issue
and so take all the necessary steps to make sure initialization
will not only be achieved but also preserved until the end of
your kinematic surveys.
Single-Frequency vs. Multi-Frequency
GNSS multi-frequency receivers need less data and time to
get initialized. However, recent developments have allowed
single-frequency receivers to significantly improve their
performance on that particular point and so to reduce the gap
that separates them from multi-frequency systems.
Strategies for
Securing
Initialization
When starting a survey, you will sometimes be asked to
choose an initialization method (more particularly if you are
using a single-frequency receiver). The selected method tells
the system how it should deal with initialization. Some of
these methods can make initialization easier and faster,
resulting in the following:
• Reduction of the observation time in post-processing.
• Reduction of the TTFF in RTK.
This section describes the different initialization methods
available with Spectra Precision receivers:
• Kinematic OTF
• Static OTF (for RTK surveying only)
• Known Point
• Initializer Bar