NavCom SF-2050 Rev.E - Manual (Page 15)

SF-2050 User Guide - Rev. E
triangulation station; the parameters (radius and
flattening) of the ellipsoid selected for the
computations; and the geoid separation at the
origin. A change in any of these quantities affects
every point on the datum. For this reason, while
positions within a system are directly and accurately
relatable, data such as distance and azimuth derived
from computations involving geodetic positions on
different datums will be in error in proportion to the
difference in the initial quantities.
„
Positioning Flexibility
The SF-2050 is capable of using two internal Satellite
Based Augmentation System ( SBAS ) channels that
provide Wide Area Augmentation System (WAAS) or
European Geostationary Navigation Overlay Service
(EGNOS)
code corrections. The SF-2050 configures
itself to use the most suitable correction source available
and changes as the survey dictates.
„
RTK Extend™
RTK Extend™ enables continuous RTK position accuracy
during radio communication outages by utilizing
NavCom’s global StarFire™ corrections. Traditionally,
when an RTK rover loses communication with the base
station, it is unable to continue to provide position
updates for more than a few seconds, resulting in user
down-time and reduced productivity. Through a
revolutionary technique called RTK Extend™, a
NavCom StarFire™ receiver, operating in RTK mode,
can transition to RTK Extend™ mode and maintain
centimeter accurate positioning during communication
loss for up to 15 minutes. RTK Extend™ allows the user
to work more efficiently and without interruption, thus
enabling them to concentrate on the work rather than
the tools.
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