What provides interruption of the ADF operation if the receiver-transmitter is keyed?

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Multiple Choice

What provides interruption of the ADF operation if the receiver-transmitter is keyed?

Explanation:
Interlock between transmitting and receiving is what stops the ADF from operating when you key the transmitter. The A-395 is the device that provides this interruption. When the receiver-transmitter is keyed, the A-395 senses that transmit condition and disables or blanks the ADF receiver/indicators, preventing self-interference and erroneous bearings. The Direction Finder Set is the overall system, not the specific interlock mechanism. The ionosphere is a propagation environment, not an onboard interlock. The A-395 is the component designed for this purpose.

Interlock between transmitting and receiving is what stops the ADF from operating when you key the transmitter. The A-395 is the device that provides this interruption. When the receiver-transmitter is keyed, the A-395 senses that transmit condition and disables or blanks the ADF receiver/indicators, preventing self-interference and erroneous bearings. The Direction Finder Set is the overall system, not the specific interlock mechanism. The ionosphere is a propagation environment, not an onboard interlock. The A-395 is the component designed for this purpose.

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