Cutout dimensions are given in both millimeters and inches, plus panel thickness limits. The manual includes a template for the panel cutout – a small but thoughtful addition.
Use high-performance low-loss foam dielectric cable, such as Electronic Cable Specialists (ECS) or PIC Wire variants.
Outlines the self-test procedures and necessary ground test equipment required to verify the unit is accurately reporting altitude and position. User & Professional Feedback Technical Accuracy: Kt 70 Installation Manual
Indicates an internal hardware error, antenna mismatch, or lack of interrogation replies. Re-verify coaxial terminations and check for a short circuit in the antenna cable.
Forced air cooling is highly recommended for longevity, though radiation cooling may suffice in open panels. TSO Compliance: TSO C112 (Class 2A). 2. Pre-Installation and Mounting Considerations Cutout dimensions are given in both millimeters and
The manual typically covers the following critical sections for a successful setup: General Information:
: Following any installation or modification, the system must undergo a formal certification test. In the United States, this must comply with 14 CFR Part 43, Appendix E and F , which verifies altitude reporting accuracy and transponder performance. Outlines the self-test procedures and necessary ground test
Place the mounting tray in the instrument panel stack. Ensure it is perfectly level so the unit engages smoothly with the rear connectors.
For installations using modern digital air data computers or solid-state encoders, ARINC 429 digital data buses can feed altitude information. Connect the digital high/low lines to Pins S and T. Ensure the encoder data rate matches the configured speed profile of the transponder receiver port. 5. Post-Installation Configuration and Testing
11.10 inches (28.19 cm) behind the panel (excluding rear connectors).