System Description

System Description and Installation Manual for MXS ICD10004-01
© Sagetech Corporation 2018 Confidential Proprietary Export-Controlled Page 126 of 160
Table 0-5761 TIS-B Mode Status Report Message Payload Structure Detail
Report Type and Structure ID
Byte
Offset
Byte
Name
Field Description
00
RS0
RS0 (MSN) RS0
(LS
N)
RS1 RS2 Report Type and Structure ID
For commonality with the ADS-B Mode Status Report structure,
the Report Type and Structure Identification field is included in
the TIS-B Mode Status Report. In the TIS-B Mode Status Report,
this field is always set to 0x0BCE40.
01
RS1 0x0 0xB 0xC
E
0x40
02
RS2
Report Type
The Most Significant Nibble (MSN) of the byte RS0 contains the Report Type.
Structure ID
The remaining data constitutes the Structure ID, which indicates the fields that are being reported in the
current message. If the bit for the field is set to “ONE”, then the data field is available and included in the
current report. If the bit is set to “ZERO”, this indicates that the field is not reported for the current
message and the Mode Status message will not include that field. The Mode Status Message will
concatenate the next field to be included into the report, following the previous reported field. This is
performed for each data field that is reported.
The table below outlines the Structure ID layout:
Byte Name Bit Mode Status Data Parameter to be
Reported
Number of Bytes
RSO (LSN)
3
2
1
0
Time of Applicability
ADS-B Version
Call Sign
Emitter Category
2
1
8
1
RS1
7
6
5
4
3
2
1
0
Message Reserved1
Message Reserved2
Capability Codes
Operational Mode
SV Quality – NACp
SV Quality – NACv
SV Quality – SIL
Message Reserved 3
1
1
2
2
1
1
1
1