The VDC-086096 from VidaRF is a Drop-In Circulator that operates from 860 to 960 MHz. It has an insertion loss of 0.5 dB and an isolation of 20 dB. The circulator can handle up to 100 watts of forward power, 500 watts of peak power, and has a VSWR of less than 1.25:1. This RoHS-compliant circulator is available in a module that measures 25.4 x 25.4 x 7.62 with connectors.