TQ Aviation KTX2-F.0100
EASA.AP445 MAN
KTX2-F.A-MAN.0001.docx Page 60 of 74
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This option must additionally be activated in the Setup. For details on configuration please refer to
chapter 3.4.2.1.3.2.
5.1.4 Static Air Port
The transponder has a built-in altitude encoder which must be connected to the same source of static
pressure as the primary altimeter on the aircraft.
For this purpose the transponder has a hose connection at its rear side for nominal 5mm or 3/16 inch
tubing (inside diameter).
Connect the static air connection to the static pressure port and ensure a tight connection with a suitable
hose clamp.
5.1.5 GNSS Interface
A GNSS source can be connected to the serial interface (RS232) providing GNSS position data for use
of ADS-B out.
Requirements:
• Required GNSS hardware:
o NexNav Mini (Part-No. 21.000) which turns the transponder into a 14 CFR 91.227
compliant device as required for TC’d aircraft (FAA 2020 mandate).
or
o Standard NMEA0183 RMC data stream including the RMC-sub-format
(4800/9600/19200/38400 Baud) for aircrafts which do not require the ADS-B requirements
defined in 14 CFR 91.227.
• GNSS hardware needs to be connected to pin 13 (RX-RS232) and optionally pin 2 (TX-RS232)
of the D-SUB connector (see chapter 5.2.2). Power supply needs to be provided separately
considering the required operating voltage for the GNSS hardware.
The WAAS GNSS device needs to be selected in the setup menu (see chapter 3.1.4.4).
Note:
For connection to the NexNav Mini device, a proprietary cable is available from TQ. Please contact you
dealer for more information.
If a standard NMEA0183 WAAS GNSS source is sufficient for your aircraft (LSA, Experimental, Ultralight
etc.) you should consider brands recommended by TQ to avoid incompatibilities or malfunctions.
Note:
For correct function of the movement detection an update rate of 5 Hz is recommended for NMEA
devices.
5.1.6 Antenna Connector
The antenna is connected to a single coaxial connector (SMA) at the rear side of the transponder.
5.1.6.1 L-Band ADS-B Antennas
The L-Band antenna used with the KTX2 must fulfil to the following specifications:
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