The RFLC-HXD-11-40P68M from RF-Lambda is a Space Qualified Circulator with Frequency 38.68 to 42.68 MHz, Bandwidth 4 MHz, Average Power Forward 500 W, Insertion Loss 0.80 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC-HXD-11-40P68M can be seen below.