After switching frequencies, what should you verify?

• A. Verify contact on the new frequency.
• B. Notify the previous controller.
• C. Ignore the new frequency until instructed.
• D. Ask for re-transmission.

Answer: (A)

The main thing this question tests is establishing proper communication on the new frequency. After you switch frequencies, you must confirm two-way contact with the correct controller on that new channel. This ensures you can both hear and be heard by the intended authority, which is essential for receiving instructions, clearances, and coordination.

To do this, tune to the new frequency and listen first to see if there is an active call or instruction from the controller. Then make a concise initial call with your identification and position to establish contact, and await a response. If you don’t hear anything or don’t get a reply, troubleshoot audio or frequency settings and try again until you have two-way communication on the new frequency.

There isn’t a required step to notify the previous controller simply because you changed frequencies, and ignoring the new frequency or proceeding without establishing contact could lead to unsafe situations. You would only seek a retransmission if the received messages are garbled or unclear, but the primary action after switching is to verify contact on the new frequency.