Page 1-3
General Information
TQG191-IM
Rev 0: 28 Feb 2019
KTX2
Installation Manual
Table 1-1: KTX2 General Description
MODEL/ P/N
DESCRIPTION
INTERFACES/FUNCTIONS
KTX2
P/N 304110-
XX(XX)XX-(XX)
Supports 1090 MHz Mode
S(ES) ADS-B OUT
•
Approved WAAS GPS RS-232 Input
•
Altitude data input (Static Port connection)
•
L-Band Antenna
Table 1-2: System Components
COMPONENT
MODELS
H/W PART NO.
Mode-S(ES) Transponder System
NTX2
304110-XX(XX)XX-(XX)
The following components are not supplied with the system, but are required.
COMPONENT
REFERENCE
COMMENTS
GPS Receiver
2.6.1
Required, but installation is not covered by this
STC
GPS Antenna
2.6.1
Required, but installation is not covered by this
STC
L-Band Antenna
Table 2-6
Required, but installation is not covered by this
STC
Static Source
3.3.10
An aircraft static source is required
1.5.1 Functional Description
The KTX2 is a panel mount Class 1 Non-Diversity Mode-S(ES) ADS-B OUT DO-260B compliant
transponder that meets the 2020 ADS-B Mandate requirements when connected to a WAAS
GPS source and appropriate L-Band antennas.
The unit receives Mode A, Mode C, and Mode S interrogations on 1030 MHz and replies on
1090 MHz. The unit is equipped with IDENT capability that activates the Special Identification
(SPI) pulse for 18 seconds. Ground stations and airborne TCAS II can interrogate Mode S
Transponders individually using a 24-bit ICAO Mode S address, which is unique to the particular
aircraft. In addition, ground stations may interrogate the unit for its transponder data capability
and the aircraft's Flight ID.
With a GPS source connected, the ADS-B Out (1090ES) function is used to periodically
broadcast (without interrogation) information about the aircraft that includes aircraft
identification, position, altitude, velocity and other aircraft status information. This provides an
immediate surveillance source to the ANSP and air-to-air traffic information to other aircraft.
The unit has been tested and certified for pressure altitudes up to 30,000 ft and a maximum
airspeed of 250 kts.
See Figure 1-1 for an overview of the unit’s system interface. The following paragraphs provide
an overview of each of these functions.
NOTE
With no GPS interface configured, or the GPS source
inoperable, the transponder is not ADS-B rule compliant
and will behave as a conventional Mode-S transponder
.
