SBAS Corrections
Satellite Navigation
162
User Manual 1178.6379.02 ─ 01
The IODI is internally increased every 240 seconds with the transmission of each
page.
PRN Mask - IODP ← Issue of Data
Sets the Issue of Data PRN mask parameter.
Fast Correction - IODF ← Issue of Data
Sets the issue of data fast correction IODF, per message type.
Service - IODS ← Issue of Data
Sets the Issue of Data, Service.
Service
Access: "System Parameters > Service".
Comprises the service information as transmitted by MT 27.
Number of Service Messages ← Service
Defines the total number of unique Type 27 messages for the selected "IDOS".
Service Message Number ← Service
Sequential number that indicates a service message.
Priority Code ← Service
If the regions defined in more than messages overlap, this parameter indicates the
message priority. The UDREI values specified in the service message with higher pri-
ority are used.
UDREI Inside/Outside ← Service
Specifies the
δ
UDREI factors.
The "UDREI Inside" factor applies on users within any of the specified regions; the
"UDREI Outside", to the users that are outside.
See
"Coordinates and shape of each of up to five regions"
Number of Regions ← Service
Sets the number of geographic regions.
Coordinates and shape of each of up to five regions ← Service
Geographic regions are closed polygons, described with their shape ("Triangular" or
"Square") and the coordinates ("Latitude" and "Longitude") of the corners.
Degradation Factors
Access: "System Parameters > Degradation Factors".
Degradation factors are optional global SBAS parameters and are defined in
. The degradation factors are broadcasted in MT
10.
B_rrc ← Degradation Factors
Sets the range-rate correction degradation parameter B
rrc
.
SBAS Settings