Which frequency should pilots monitor to communicate in uncontrolled airspace?

In uncontrolled airspace, pilots typically communicate their intentions and maintain situational awareness by monitoring certain designated frequencies. The frequency 126.7 MHz is commonly used for non-towered airports and is specifically designated for pilot-to-pilot communications in uncontrolled airspace across the United States. This frequency is utilized by pilots to announce their positions and intentions while flying in and around these areas, which helps to enhance safety and coordination among aircraft.

Monitoring 126.7 MHz allows pilots to stay informed about other aircraft in the vicinity, facilitating better traffic management and helping to avoid potential conflicts. This practice is essential in uncontrolled airspace, where air traffic control services are limited or nonexistent.

While other frequencies listed might be used for specific purposes (for example, 121.5 MHz is an emergency frequency, and 118.75 MHz might be used in controlled airspace under specific circumstances), they do not serve the primary function that 126.7 MHz does for communication in uncontrolled airspace. Thus, it's important for pilots to be familiar with and monitor 126.7 MHz in order to ensure safe and effective communication.