R&S SMW-K44, User Manual

Page: 161 / 455

SBAS Corrections Satellite Navigation
161 User Manual 1178.6379.02 ─ 01
└ Number of Service Messages .......................................................................162
└ Service Message Number .............................................................................162
└ Priority Code ................................................................................................. 162
└ UDREI Inside/Outside ...................................................................................162
└ Number of Regions ....................................................................................... 162
└ Coordinates and shape of each of up to five regions ....................................162
Degradation Factors ....................................................................................................162
└ B_rrc ............................................................................................................. 162
└ C_ltc_v1, C_ltc_lsb, I_ltc_v1, C_ltc_v0, I_ltc_v0 .......................................... 163
└ I_geo, C_geo_lsb, C_geo_v ......................................................................... 163
└ C_er .............................................................................................................. 163
└ RSS_iono, C_iono_step, C_geo_v, I_iono ................................................... 163
└ RSS_UDRE .................................................................................................. 163
└ C_covariance ................................................................................................ 163
Message Schedule
The message schedule is a list of the SBAS messages that are generated.
Each SBAS message type is defined with:
"SBAS message content"
Indicates content of the SBAS message type.
"Message
Type" Indicates the SBAS message type according to RTCA MOPS DO-229
"State" Enables generation of the particular SBAS correction data.
Almanac and RINEX files, and UTC offset information are required for
the navigation services of SBAS and are always enabled.
Remote command:
[:SOURce<hw>]:BB:GNSS:SYSTem:SBAS:EGNOS:NMESsage:NAV:ALManac:
STATe
on page 278
"Period" Sets the periodicity of the SBAS message, i.e. the time interval after
that a message is retransmitted.
The selected value must not exceed the timeout specified in the
specification
RTCA MOPS DO-229 .
Remote command:
[:SOURce<hw>]:BB:GNSS:SYSTem:SBAS:EGNOS:NMESsage:NAV:ALManac:
PERiod
on page 280
Issue of Data
Access: "System Parameters > Issue of Data".
The dialog list the issue of data (IOD) related parameters of the differential correction
types. The IOD values are retrieved from the predefined or the loaded correction data,
see
Chapter 17.2, "Import SBAS Constellation and Correction Data Settings" ,
on page 193.
Ionospheric Grid - IODI ← Issue of Data
Sets the initial Issue of Data ionospheric mask. The IOD is the incremental identifier of
the transmission.
SBAS Settings