UHF diversity receiver with one fixed frequency within the 710 to 865 MHz band. The audio output level shall be adjustable from microphone to line level on the front panel. The receiver shall be provided with RF and power indicators. The receiver shall have an audio bandwidth between 40 and 20,000 Hz and THD of max. 0,8 % (at 1 kHz). It shall have an A-weighted S/N Ratio of more than 108 dB. For easy rack mounting the receiver shall come in a 1/2 19" metal housing. The wireless receiver shall be the AKG model SR 40.