What must employees do before transmitting on a radio?

Prepare for the CPKC Train Dispatcher Trainee Test with interactive flashcards and multiple-choice questions. Each query is complemented by hints and detailed explanations. Equip yourself for the test now!

Before transmitting on a radio, employees must listen long enough to ensure the channel is not being used. This practice is critical in maintaining effective communication and preventing interference with other transmissions. It allows the dispatcher or train crew to determine whether the channel is clear for them to communicate without disrupting ongoing conversations or important announcements.

This procedure is a fundamental aspect of radio etiquette in train dispatching, contributing to the safety and efficiency of operations. It prevents radio congestion and ensures that important messages can be communicated clearly and promptly when the channel is free. Listening before transmitting is a standard protocol in many communication systems and is essential for safe and organized railroad operations.

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