Page 3-14
Installation Instructions
TQG191-IM
Rev 0: 28 Feb 2019
KTX2
Installation Manual
Reference paragraph 3.3.9.1 for Antenna cable loss and minimum antenna spacing
requirements.
Refer to General Information Section - lists some suitable cable types. Suitable 50ohm, double-
shielded coaxial cable assembly that meets airworthiness requirements and the acceptable
attenuation requirements (including connectors) may be used. When computing cable loss, a
typical loss of 0.2 dB can be used for each connection.
3.3.10 Altitude Input
The KTX2 requires a connection to the aircraft’s Static Port system to provide barometric
altitude data.
1. Locate the closest static source to the KTX2. This is typically a ¼” polyethylene (plastic)
or aluminum tube connected to a vertical speed indicator or VFR altimeter.
2. Cut the line and install a “T” fitting compatible with the tube type. Before installing the
“T”, ensure that the lines are clear and free from debris.
3. Attach a tube of sufficient length to the “T” and connect it to the static (altitude) source
fitting on the rear of the Transponder. Tube routing should have sufficient excess length
to avoid kinking.
4. Ensure that all connections are secured with hose clamps or compression fittings
compatible with the tube type.
NOTE
The static system must be re-certified IAW AC 43-6C after the installation
of the KTX2. Refer to 14 CFR 91.411 for guidance.
3.3.11 KTX2 Final Installation Steps
Follow the following steps to install the KTX2:
1. Connect the Static source line to the unit and secure with an approved hose clamp;
2. Connect P1 mating connector-to-connector J1 of the unit;
3. Connect the L-Band antenna to unit at appropriately marked “ANT” connection;
4. Place the unit in the location selected in paragraph 3.3.1;
5. Use four customer supplied fasteners to mount the unit to the aircraft;
6. Proceed to SECTION 4 – Installation Checkout.
3.4 REQUIRED PLACARDS AND MARKINGS
Other than the correct labeling of the KTX2 circuit breaker, no additional placards or markings
are required.
3.5 REMOVE AND REPLACEMENT PROCEDURES
If the KTX2 requires removal after initial installation, replace it using the instructions given in
SECTION 5 of this manual.
