Rtkassiststatus - Novatel OEM6 Integration Manual

Chapter 2 New for OEM7 – Firmware

2.3.20 RTKASSISTSTATUS

RTK ASSIST status
Platform: OEM729, OEM719, OEM7700
This log provides information on the state of RTK ASSIST.
RTK ASSIST operates in two modes: coast and full assist. The RTKASSISTSTATUS log reports
which mode is currently available. Coast mode is available as soon as the RTK ASSIST cor-
rections are received from the L-Band satellite, while full assist mode requires a convergence
period. In coast mode, position error growth during RTK correction outages is slightly worse
than in full assist mode and RTK will not resume following a full signal outage until after RTK cor-
rections are restored. Full assist gives the lowest position error growth during RTK correction
outages, and makes it possible for RTK to resume even if there are complete GNSS signal out-
ages during the RTK ASSIST period.
The RTK ASSIST ACTIVE state reported in the RTKASSISTSTATUS log is also reported in the
RTKPOS and BESTPOS extended solution status field. See Table: Extended Solution Status.
The RTKASSISTSTATUS log reports the time remaining in the RTK ASSIST ACTIVE state. Once
RTK ASSIST becomes active, the remaining time will count down from the time out set by the
RTKASSISTTIMEOUT command .
The corrections age reported in the RTKASSISTSTATUS log should typically be below 30
seconds. If the age exceeds this value, then L-Band tracking is likely being degraded. The most
likely cause of degraded L-Band tracking are obstructions between the antenna and the L-Band
satellite.
Message ID: 2048
Log Type: Synch
Recommended Input:
log rtkassiststatusa ontime 5
ASCII Example:
#RTKASSISTSTATUSA,COM1,0,80.0,FINESTEERING,1932,491359.000,02000020,80
fe,46672;ACTIVE,ASSIST,969.0,14.0*26e32616
Field Field type
RTKASSISTSTATUS
1
header
2 State
OEM6 to OEM7 Integration Guide v1
Description
Log header. See Messages for more
information.
State:
INACTIVE (0)
ACTIVE (1)
Binary Binary
Format
Bytes Offset
H 0
Enum 4 H
132