scope:

This Recommendation deals with user requirements for wireless microphones, In-Ear Monitoring (IEM) devices and systems combining both, known as Wireless Multi-Channel Audio System (WMAS). This Recommendation is using the term 'wireless microphone', which covers all three types of devices. It contains typical system parameters and operational requirements for analogue and digital wireless microphones, which may be used by administrations and broadcasters when planning tuning ranges within the frequency bands allocated to broadcasting, fixed and mobile service.