Audio Technica ATW-49CB - Active antenna combiner kit

ATW-49CB Includes two Active Antenna Combiners and two 50 Ω BNC RG58 coaxial cables. Designed for 4000/5000 series UHF wireless receivers and ATW-A49 antennas. Combines two incoming RF signals into one outgoing RF signal and Suitable for using two sets 

The Audio-Technica ATW-49CB Active Antenna Combiner Kit includes two Active Antenna Combiners designed for use with Audio-Technica 5000, 4000, 3000 and 2000 Series UHF wireless receivers and ATW-A49 LPDA antennas. Each Active Antenna Combiner is a broadband device (frequency range from 440 to 900 MHz) that combines two incoming RF signals into one outgoing RF signal. One set of Active Antenna Combiners enables two sets of antennas to feed one wireless receiver or distribution system.