NavCom LAND-PAK Rev.E - Manual (Page 94)

LAND-PAK
™ User Guide – Rev. E
5-92
If the above conditions are met, then the
receiver will not need to be put into RTK-
WL mode.

RTK Extend uses StarFire to provide
continuous RTK positioning during non-
reception of RTK corrections. When a
StarFire-enabled receiver with RTK
Extend falls out of RTK mode, the
system automatically transitions to RTK
Extend mode. Positioning is maintained
because of the close correlation in
phase measurement corrections
between RTK and StarFire.
Depending on how long the RTK base
station has been running and is StarFire-
fixed, the duration of RTK Extend is
limited to:
2 to 15 minutes for a NavCom
Technology base station
2 to 15 minutes for a non-NavCom
Technology base station
For RTK Extend to achieve maximum
performance, the rover must be fully
converged, which typically requires one
(1) hour of operation.
The correlation between RTK and
StarFire phase measurement
corrections decreases over time, until
the system automatically transitions out
of RTK Extend mode to the next
available dGPS mode.
This option is only required on the Rover
receiver. LAND-PAK systems are sold
with both Base and Rover optioned for
RTK Extend.