RMZ (radio mandatory zone)

An RMZ is airspace in which aircraft must carry a radio and maintain listening watch. Before entering, pilots make an initial call with identification, position and intentions.

German term

Radio Mandatory Zone (RMZ)

Abbr.

RMZ

RMZs are typically set up around uncontrolled aerodromes with IFR traffic. They do not require a clearance, but the radio call is mandatory.

For general information only. Always use official sources, your aircraft's flight manual and current national rules for flight decisions.