The QC850 is a 4 port wideband power divider type coupler. It can be used to combine up to 4 antennas with minimum system loss. It is rated at 125 Watts. This model’s Frequency coverage is 800-970 MHz. The Radome for this product is 7 1/4″ x 4 3/16″. As a coupler, this unit provides maximum signal transfer between as many as four directional antennas, or any combination of directional and omni directional antennas.