Enhanced Surveillance (Ehs - Garmin GTX 3X5 Series Installation Manual

CS-ACNS SECTION
CS ACNS.D.ELS.065 Antenna Diversity
E.2

Enhanced Surveillance (EHS)

The information in table E-2 is applicable to GTX 335/335R/345/345R units running software v2.10 and later.
CS-ACNS SECTION
CS ACNS.D.EHS.001 Applicability
CS ACNS.D.EHS.010 Transponder Characteristics
190-01499-02
Rev. 9
CS-ACNS ITEM DESCRIPTION
Aircraft with a maximum certified take-off mass
in excess of 5700 kg or a maximum cruising true
airspeed capability, under International Standard
Atmosphere (ISA) conditions, in excess of 130 m/
s (250 knots) operates with an antenna diversity
installation.
Table E-2 EHS
CS-ACNS DESCRIPTION
a) This section provides standards for airborne
Mode S EHS installations which provide on
request (through Mode S replies elicited by
Mode S interrogations) airborne parameters in
addition to parameters provided by ELS
installations compliant with Section 2
b) This certification specification is applied
together with Mode S Elementary Surveillance
certification specification defined in Section 2.
a) The transponder is an approved Mode S
transponder with EHS capability.
CS-ACNS Compliance Matrix
COMPLIANCE SUMMARY
The GTX 335/335R/345/345R, transponders are not
diversity units and do not meet this requirement.
COMPLIANCE SUMMARY
See CS ACNS.D.EHS.015 (c)
See CS ACNS.D.EHS.015 (a) (8) (c)
The GTX 3X5 was shown in the GTX 335/335R/
345/345R ELS CS-ACNS compliance matrix to be
compliant to CS.ACNS.D.ELS.
The GTX 3X5 complies with ETSO-C112e
requirements for enhanced surveillance. See
table 1-13 and table 1-14 of the installation manual
for applicable system TSO approvals and software
part numbers.
GTX 3X5 Transponder TSO Installation Manual
Page E-7