System Description
System Description and Installation Manual for MXS ICD10004-01
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10. TIS-B Report Message Overview
Like ADS-B In Reports, TIS-B In Reports are sent when position data becomes available for a TIS-B participant and
thereafter as participant data changes. If the position data for a TIS-B participant has not been updated in 120 seconds,
TIS-B In Reports are no longer sent for that participant.
Two types of targets are defined for TIS-B: Fine Targets and Coarse Targets.
The data available for Fine targets is similar to the data for ADS-B targets and is reported in TIS-B State Vector, Mode
Status and Air Referenced Velocity (ARV) Reports. These messages are based on their ADS-B equivalents but with a few
modifications to support TIS-B-specific data.
The data for coarse targets is combined into a single Coarse Position Report, containing all the data available for the
Coarse TIS-B participant.
Table 0-55Table 6-59 lists TIS-B Reports and associated Message Types, lengths and document sections.
Table 0-5559 TIS-B Report Messages
MessageName MessageType
PayloadLength
(Bytes)
Document
Section
TIS‐BStateVectorReport 0x93 24‐48 66.4.11.1
TIS‐BModeStatusReport 0x94 16‐36 76.4.11.2
TIS‐BCoarsePositionReport 0x95 18 96.4.11.4
TIS‐B/ADS‐RManagementReport 0x96 11 106.4.11.5
TIS‐BAirReferencedVelocityReport 0x98 14 86.4.11.3
6. TIS-B State Vector Report Message: Type 0x93
The TIS-B State Vector Report Message is sent for TIS-B participants transmitting fine format TIS-B messages. The TIS-
B State Vector Report is identical to the ADS-B State Vector Report with the following exceptions:
The content of the Address Qualifier field is modified
A single Vertical Rate valid bit is defined (instead of Baro and Geometric)
The NIC field contains only the Position Message Type Code and Supplement A (No Supplement B or C)
Bit b2 of the Surveillance Status field changes from “Intent Change” to “Reserved”
The Processing States are renamed “Incomplete” and “Complete”