How do pilots receive radar advisories when simultaneous approaches are in progress?

Pilots receive radar advisories during simultaneous approaches primarily on the tower frequency. This frequency allows for direct communication between the pilots and the air traffic controllers who are managing the approach and landing of multiple aircraft simultaneously. When simultaneous approaches are occurring, it is crucial for the tower controller to provide real-time updates and instructions to ensure safe spacing and sequencing of the arriving aircraft. Using the tower frequency allows controllers to communicate important information such as altitude adjustments, vectors for spacing, and landing clearance to the pilots, ensuring a smooth and safe operation at the airport.

Other frequencies mentioned serve different purposes; for instance, the approach frequency is primarily used for managing aircraft in the terminal airspace before they reach the airport, while emergency frequency is specifically for distress situations. Using the ground frequency is limited to aircraft on the ground, not actively involved in the approach and landing phases.