The ELT test window is defined as:

• A. The first 5 minutes after the hour
• B. The last 5 minutes after the hour
• C. The middle 5 minutes of the hour
• D. Any 5-minute period outside the hour

Answer: (A)

The test window for an ELT is the first five minutes after the hour. This fixed slot helps separate the test signal from real distress transmissions and reduces potential nuisance alerts for search-and-rescue operators. Testing later in the hour or at a non-standard time could cause confusion or appear like a real emergency. So, you perform the ELT test within the first five minutes after the hour, following the manufacturer’s testing procedure.