Which frequency has a continuous radio broadcast on weather and airfield information?

The Automated Terminal Information Service (ATIS) is designed to provide continuous broadcasts of essential information related to weather and airport operations. ATIS transmits standardized messages that include current weather conditions, active runways, and other pertinent operational information to pilots, allowing them to receive updates without needing to communicate directly with air traffic control each time they require this information.

This service enables efficient management of air traffic by ensuring that pilots are informed of necessary data prior to takeoff or landing. As a result, ATIS helps maintain safety and improves the overall flow of air traffic in busy airport environments.

In contrast, while the Common Traffic Advisory Frequency (CTAF) allows for the exchange of information among pilots, it does not provide continuous, standardized broadcasts of this kind. Ground Control Frequency is primarily used for communication between ground personnel and aircraft during taxiing, while Air Traffic Control Frequency is used for en route and approach control communication, but these do not focus specifically on continuous weather and airfield updates as ATIS does.