On the guard frequency, the circuit will illuminate which color first, and what color will it turn after the call is complete?

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Multiple Choice

On the guard frequency, the circuit will illuminate which color first, and what color will it turn after the call is complete?

Explanation:
The guard frequency uses color to show the status of the channel. Green appears first, meaning the guard call is active and the line is in use. After the call is complete, the indicator changes to yellow to show the channel is now idle/standby and ready for the next transmission. Red would imply a fault or alarm, and blue isn’t described for this guard-state signaling, so green then yellow is the correct sequence.

The guard frequency uses color to show the status of the channel. Green appears first, meaning the guard call is active and the line is in use. After the call is complete, the indicator changes to yellow to show the channel is now idle/standby and ready for the next transmission. Red would imply a fault or alarm, and blue isn’t described for this guard-state signaling, so green then yellow is the correct sequence.

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