Describe the standard roll-call check-in sequence used on an emergency net.

• A. Station calls in with its call sign, operator name, location, and purpose; states whether it has traffic to pass; listens for NCS acknowledgment before transmitting.
• B. Station simply says 'I'm here'.
• C. Station transmits traffic first, then check-in.
• D. Station checks in after all others have.

Answer: (A)