Licence Exempt

Licence-exempt bands for wireless microphones and monitors.

VHF:

Band: 173.7 - 175.1 MHz

Available frequencies:

173.800, 174.000, 174.200, 174.400, 174.600, 174.800, 175.000 MHz

No. of mics: Typically up to 3 frequencies can be used together.
For example, 173.8, 174.2, and 175.0 MHz

Transmitter power: 10mW. (Up to 50mW permitted for body-worn pack)

Other users: Wireless microphones only

UHF:

Band: 863.0 - 865.0 MHz

Available frequencies: From 863.100 MHz to 864.900 MHz

No. of mics: Typically up to 4 frequencies can be used together.
For example, 863.1, 863.7, 864.1 and 864.9 MHz

Transmitter power: 10mW.

Other users: Wireless microphones, domestic cordless headsets and loudspeakers

WiFi:

Band: 2400 - 2483.5MHz

No. of mics: Manufacturers claim up to 70 frequencies can be used together.

Transmitter power: 10mW.

Other users (include): Wireless computer networks (WiFi), RF tags (RFID), Bluetooth short-range links, video links, wireless microphones, microwave ovens, movement detectors, industrial control and monitoring.