kpayne on VMOFRWIN702 with $$_JOB

Federal Aviation Administration, DOT

Section 91.227

(for example, latitude, longitude, and
velocity) information.
Source Integrity Level (SIL) indicates
the probability of the reported horizontal position exceeding the containment radius defined by the NIC on a
per sample or per hour basis, as defined
in TSO-C166b and TSO-C154c.
System Design Assurance (SDA) indicates the probability of an aircraft
malfunction causing false or misleading information to be transmitted,
as defined in TSO-C166b and TSO-
C154c.
Total latency is the total time between when the position is measured
and when the position is transmitted
by the aircraft.
Uncompensated latency is the time for
which the aircraft does not compensate
for latency.
(b) 1090 MHz ES and UAT Broadcast
Links and Power Requirements - 
(1) Aircraft operating in Class A airspace must have equipment installed
that meets the antenna and power output requirements of Class A1, A1S, A2,
A3, B1S, or B1 equipment as defined in
TSO-C166b, Extended Squitter Automatic Dependent Surveillance-Broadcast (ADS-B) and Traffic Information
Service-Broadcast (TIS-B) Equipment
Operating on the Radio Frequency of
1090 Megahertz (MHz).
(2) Aircraft operating in airspace designated for ADS-B Out, but outside of
Class A airspace, must have equipment
installed that meets the antenna and
output power requirements of either:
(i) Class A1, A1S, A2, A3, B1S, or B1
as defined in TSO-C166b; or
(ii) Class A1H, A1S, A2, A3, B1S, or B1
equipment as defined in TSO-C154c,
Universal Access Transceiver (UAT)
Automatic Dependent Surveillance-
Broadcast (ADS-B) Equipment Operating on the Frequency of 978 MHz.
(c) ADS-B Out Performance Requirements for NAC P, NACV, NIC, SDA, and
SIL - 
(1) For aircraft broadcasting ADS-B
Out as required under Section 91.225 (a) and
(b) - 
(i) The aircraft-s NACP must be less
than 0.05 nautical miles;
(ii) The aircraft-s NACV must be less
than 10 meters per second;
(iii) The aircraft-s NIC must be less
than 0.2 nautical miles;

(iv) The aircraft-s SDA must be 2;
and
(v) The aircraft-s SIL must be 3.
(2) Changes in NACP, NACV, SDA, and
SIL must be broadcast within 10 seconds.
(3) Changes in NIC must be broadcast
within 12 seconds.
(d) Minimum Broadcast Message Element Set for ADS-B Out. Each aircraft
must broadcast the following information, as defined in TSO-C166b or TSO-
C154c. The pilot must enter information for message elements listed in
paragraphs (d)(7) through (d)(10) of this
section during the appropriate phase of
flight.
(1) The length and width of the aircraft;
(2) An indication of the aircraft-s
latitude and longitude;
(3) An indication of the aircraft-s barometric pressure altitude;
(4) An indication of the aircraft-s velocity;
(5) An indication if TCAS II or ACAS
is installed and operating in a mode
that can generate resolution advisory
alerts;
(6) If an operable TCAS II or ACAS is
installed, an indication if a resolution
advisory is in effect;
(7) An indication of the Mode 3/A
transponder code specified by ATC;
(8) An indication of the aircraft-s call
sign that is submitted on the flight
plan, or the aircraft-s registration
number, except when the pilot has not
filed a flight plan, has not requested
ATC services, and is using a TSO-C154c
self-assigned temporary 24-bit address;
(9) An indication if the flightcrew has
identified an emergency, radio communication failure, or unlawful interference;
(10) An indication of the aircraft-s
 - IDENT -  to ATC;
(11) An indication of the aircraft assigned ICAO 24-bit address, except
when the pilot has not filed a flight
plan, has not requested ATC services,
and is using a TSO-C154c self-assigned
temporary 24-bit address;
(12) An indication of the aircraft-s
emitter category;
(13) An indication of whether an
ADS-B In capability is installed;
(14) An indication of the aircraft-s
geometric altitude;

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