Audio-Technica ATW-1311 System 10 PRO Rack-Mount Digital Wireless System

Double Receiver - 24-bit / 48 kHz with  three levels of diversity.

1. Frequency diversity sends the signal to two frequencies allocated for communication without interference.

2. Time diversity sends the signal in several time slots to optimize immunity against multi-path interference.

3. Space diversity uses two antennas on each transmitter and receiver to maximize signal integrity.