About Errors Correction - R&S SMW-K44 User Manual

Satellite Navigation
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SBAS message scheduling
The SBAS messages are scheduled according to a user-defined period. The default
values reflect the timeouts specified in the specification
Loading historical data
Similar to the constellation and navigation data files, you can load SBAS constellation
and correction files, for example, to reproduce a specific situation form the past.
For details, see
tings",

13.2 About Errors Correction

When to use SBAS corrections?
As general rule, apply SBAS corrections, if errors are simulated. If the simulated and
the broadcasted navigation messages match as it is in the default configuration, SBAS
corrections are not necessary. In this case, activating SBAS does not improve the posi-
User Manual 1178.6379.02 ─ 01
Content
SBAS network time, UTC offset
parameters
GEO satellites almanacs
Ionospheric grid point mask
Mixed fast and log-term correction
data
Long-term satellite error correction
data
Ionospheric delay corrections
SBAS service message
Clock-Ephemeris covariance matrix
message
Reserved
For SBAS testing only
Initial test message
Null message
Chapter 17.2, "Import SBAS Constellation and Correction Data Set-
on page 193.
About Errors Correction
Related settings
See Chapter 6.1, "Time Configuration
on page 35
See "Message Schedule" on page 161
Chapter 13.4.3.2, "Ionosphere Grid
on page 149
Not supported
See Chapter 13.4.3.5, "Long-Term Correction File
Configuration Settings", on page 155
Chapter 13.4.3.2, "Ionosphere Grid
on page 149
See "Service" on page 162
See Chapter 13.4.3.7, "Clock-Ephemeris Covariance
Matrix Configuration Settings",
-
(not simulated)
-
(This message is filled in with empty timeslots
depending on the transmit period values selected for
the other message types)
RTCA MOPS
SBAS Corrections
Settings",
Settings",
Settings",
on page 158
DO-229.
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