Garmin GTX 33 Installation Manual - Page 63

GTX 33 Installation Manual, Rev. F, B-11

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Item # 51. 52. 53. Table B-1. Version 1 ADS-B Field Approval Compliance Matrix AMC Section # 8.4.1 8.4.2 8.4.3 AMC Item Compliance Summary The requirements on horizontal position data sources are based on the ED-126 safety and performance assessments. [General information, no compliance statement req'd] Components of horizontal position data sources external to the aircraft ADS-B system (such as the GNSS space segment) fall outside these airworthiness considerations. Such external components are assumed to operate in accordance with their specified nominal performance. [General information, no compliance statement req'd] Nevertheless, failures of the external data source components are required to be detected through onboard monitoring (as expressed in section 8.4.3). Any eligible horizontal position data source needs to meet the following minimum requirements (refer also to Table 2 in Appendix 3): • Correct encoding of quality indicator information in line with the actual performance of the selected horizontal position data source(s), i.e. in relation to position integrity containment bound (ED-102/DO-260 and DO-260A ADS-B transmit systems) and position accuracy (DO-260A ADS-B transmit systems); • Position source failure probability: 10-4 per hour; • Position integrity alert failure probability, commensurate with the performance characteristics of GNSS integrity monitoring: 10-3 (per position source failure event); • "Correct encoding" -The GTX 33 encoding is compliant with DO260A. Garmin GNS/GTN Equipment: • "Position source failure probability" - This requirement is met by the GPS/SBAS system and is not applicable to the GPS position equipment itself. • "Position integrity alert failure probability" - missed alert probability is 10-3/hr in all modes. • "Position integrity time-to-alert" - the 10 second position integrity time to alert is met in all modes. Other: • Position integrity time to alert: 10 seconds. 190-00906-00 Rev. F GTX 33 Installation Manual Page B-11

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190-00906-00
GTX 33 Installation Manual
Rev. F
Page B-11
51.
8.4.1
The requirements on horizontal posi-
tion data sources are based on the
ED-126 safety and
performance assessments.
[General information, no
compliance statement req’d]
52.
8.4.2
Components of horizontal
position data sources external to the
aircraft ADS-B system (such as the
GNSS space segment) fall outside
these airworthiness
considerations. Such external compo-
nents are assumed to
operate in accordance with
their specified nominal
performance.
Nevertheless, failures of the
external data source components are
required to be detected through on-
board monitoring (as
expressed in section 8.4.3).
[General information, no
compliance statement req’d]
53.
8.4.3
Any eligible horizontal position data
source needs to meet the
following minimum requirements
(refer also to Table 2 in
Appendix 3):
• Correct encoding of quality
indicator information in line with the
actual performance of the selected
horizontal position data source(s), i.e.
in relation to position integrity contain-
ment bound (ED-102/DO-260 and
DO-260A ADS-B transmit systems)
and position accuracy (DO-260A
ADS-B transmit systems);
• Position source failure probability:
10
-4
per hour;
• Position integrity alert failure proba-
bility, commensurate with the perfor-
mance
characteristics of GNSS integrity
monitoring: 10
-3
(per
position source
failure event);
• Position integrity time to alert: 10
seconds.
•
“Correct encoding” -The GTX 33
encoding is compliant with DO-
260A.
Garmin GNS/GTN Equipment:
•
"Position source failure
probability" - This requirement is
met by the GPS/SBAS system and
is not applicable to the GPS posi-
tion equipment itself.
•
“Position integrity alert failure
probability” - missed alert
probability is 10
-3
/hr in all modes.
•
“Position integrity time-to-alert” –
the 10 second position integrity
time to alert is met in all modes.
Other:
Table B-1.
Version 1 ADS-B Field Approval Compliance Matrix
Item #
AMC
Section #
AMC Item
Compliance Summary