The C-2352 Series from Werbel Microwave are dual directional couplers that operate from 130 to 520 MHz. They have nominal coupling values from 3.5 to 40 dB, directivity of over 20 dB, and an insertion loss of less than 2.2 dB. These couplers can handle up to 200 watts of forward power and have a VSWR of 1.3:1. This C-2352 series of couplers measure 5.80 x 2.00 x 1.00 mm with N-type (F) connectors.