These Hybrid Couplers have industry leading 30dB port to port isolation. They are most commonly used to combine two wireless carriers in the band to a single antenna feed or distribution cable. This requires the low PIM termination on one output port and results in a 3 dB loss in each signal. In situations where two similar feeds are required, as required for an in-building application, both outputs may be used eliminating the need for a termination and the 3 dB loss. For 200W power see Microlab CA-86 series.pbr/p This coupler is a 90° Quadrature Hybrid. Connector spacing allows controlled wrench tightening. For outdoor environments add suffix ‘P’ to Model No. (e.g. CA-84EP).