FAA Ground School Practice Test

Which UNICOM frequencies are typically assigned to stations at heliports?

1. 121.5 and 123.45 MHz.

2. 122.75 and 123.10 MHz.

3. 123.05 and 123.075 MHz.

4. 124.6 and 125.5 MHz.

The correct answer is: 123.05 and 123.075 MHz.

The correct frequencies typically assigned to stations at heliports are 123.05 and 123.075 MHz. These frequencies serve as common traffic advisory frequencies (CTAF) that allow pilots to communicate with one another when operating in the vicinity of the heliport. Using these designated frequencies helps to enhance situational awareness among pilots and ground personnel, which is especially crucial in the generally busy airspace around heliports. The choice of these specific frequencies is also consistent with the guidance provided by aviation regulatory agencies to minimize congestion and confusion, as they are standardized for heliport operations. Furthermore, these frequencies are part of a set designated for various types of air traffic, allowing seamless communication among operators, ensuring that all participating pilots can report their positions and intentions. This is particularly important for safety in areas where multiple aircraft may be operating simultaneously, such as around urban heliports.