User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
Mode S Enhanced Surveillance (EHS) was the second step of down linking
additional aircraft derived data. In addition to the Mode S and Mode S ELS
requirements listed above, minimally Mode S EHS requires the aircraft to be:
● equipped with a Mode S ELS/EHS capable transponder
● equipped with sources of standard ARINC 429 labels;
- 102 Selected Altitude
- 325 Roll Angle
- 103 True Track Angle or 312 Ground Speed
- 335 Track Angle Rate
- 210 True Airspeed (TAS)
- 320 Magnetic Heading
- 365 Inertial Vertical Velocity
- 205 MACH
- 206 Indicated Airspeed (IAS)
- 212 Barometric Rate
Automatic Dependent Surveillance-Broadcast (ADS-B OUT) is the next step of
down linking additional aircraft derived data. In addition to the Mode S, Mode S
ELS, and Mode S EHS requirements listed above, minimally ADS-B OUT may
require the aircraft to be:
● equipped with a Mode S ELS/EHS and ADS-B OUT capable transponder
● equipped with sources of standard ARINC 429 labels:
- 076 GNSS Altitude (MSL)
- 103 GNSS True Track Angle
- 110 GNSS Latitude, Coarse or 310 Latitude
- 111 GNSS Longitude, Coarse or 311 Longitude
- 112 GNSS Ground Speed or else 312 Ground Speed
- 120 GNSS Latitude, Fine
- 121 GNSS Longitude, Fine
- 130 GNSS Horizontal Protection Limit or else 112 Ground Speed or 312
Ground
- Speed or else 133 VIL or else 203 Uncorrected Barometric Altitude or
370 GNSS HAE
- 136 GNSS Vertical Figure of Merit
- 140 GNSS UTC, Fine (binary, “0.200 sec”)
- 150 GNSS UTC (binary, e.g., “12 h 23 m 12 s”)
- 165 GNSS Vertical Velocity
- 166 GNSS N/S Velocity
- 174 GNSS E/W Velocity
- 247 GNSS Horizontal Figure of Merit
- 314 True Heading or else 103 GNSS Track Angle or else 313 True Track
Angle
- 370 GNSS Geodetic Height (above WGS-84 ellipsoid).
a) BDS Registers
The transponder assembles data into Binary Data Store (BDS) registers.
These registers are also referred to as GICB registers since they can be
down linked via Ground Initiated Comm B transactions.
Pub. No. 8600200-001, Revision 004
34-45-29
1-120
04 Nov 2014
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.