If no transmissions are received on ASR FINAL while vectored, you should wait for how many seconds before attempting contact?

If no transmissions are received on ASR FINAL while vectored, you should wait for how many seconds before attempting contact?

• A. 10 seconds
• B. 15 seconds
• C. 20 seconds
• D. 25 seconds

Answer: (B)

When you're being vectored to ASR FINAL and there are no transmissions heard, you pause for fifteen seconds before trying to contact ATC again. This interval gives ATC time to respond or issue further instructions without constant chatter on the frequency, while still keeping you on a timely schedule. After the pause, make another contact attempt on the assigned frequency and continue to monitor for a response as you follow your instructions and maintain situational awareness. If there’s still no contact after that second attempt, proceed with your standard radio failure procedures.