What should operators do before transmitting a message?

The recommended practice for operators before transmitting a message is to listen carefully to the channel. This ensures that the channel is clear of any ongoing transmissions and that the operator does not interrupt or interfere with other communications. Listening helps in understanding the current activity and context on the frequency, which is crucial for effective communication. By doing so, operators can also gauge whether it is an appropriate time to transmit their message without causing confusion or overlap in communications. This practice promotes good communication etiquette and enhances the efficiency and clarity of the message being conveyed.