Definition
An exchange of voice or data transmissions between aircraft and ground stations (typically air traffic control) in which both parties can transmit and receive on a shared frequency, with each side acknowledging and responding to the other.
Plain English
A back-and-forth radio conversation between the pilot and a controller, where each side can both talk and listen, and both have heard and answered each other.
Context Anchor
Seen in air traffic control, controlled airspace, instrument procedures, and lost-communication discussions.
Derivation
Two-way means movement or action in both directions. Communication comes from a Latin word meaning “to share” or “make common.” Together, the phrase points to shared messages moving both from the aircraft to the ground station and from the ground station back to the aircraft.
Why Pilots Care
Required to receive, read back, and comply with ATC instructions that maintain safe aircraft separation.
Intuition Check
Do not assume “two-way” means the radio is simply powered on or receiving sound. In aviation, two-way radio communication means both sides can actually talk to each other and exchange messages.
Example Sentence 1
The pilot held outside the Class C airspace until two-way radio communication was established with approach control.
Example Sentence 2
If two-way radio communication is lost in instrument conditions, the pilot follows the published lost communications procedure.