What is the correct practice for ensuring a frequency is free before transmitting, excluding distress calls?

• A. Monitor the frequency to determine if it is in use
• B. Transmit a brief test signal
• C. Speak to another station first
• D. Use the last known frequency

Answer: (A)

Listen on the intended channel and wait a moment to see if there’s any ongoing transmission. This ensures the frequency is free before you transmit and prevents interrupting others or causing interference. Distress calls are an exception to this rule, but since distress traffic is excluded here, monitoring first is the correct approach. Transmitting a brief test signal can create interference or be misinterpreted, contacting another station first assumes they’re listening and can waste time, and using the last known frequency may already be in use or not appropriate for your location. So, simply monitoring the frequency to check if it’s in use is the proper practice.