Avionics FAQs

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Avionics FAQ

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What is done with the antenna connectors on the TPU-67A when an omnidirectional antenna is used?

When an omnidirectional antenna is used as the bottom antenna in a CAS-67A TCAS II installation, the 3 unused bottom antenna coax connectors on the TPU-67A processor must be connected to 50 ohm terminations.