Drake directional couplers (taps) are available in one, two, and four tap configurations with tap values of from 6 dB to 30 dB. Input return loss and port-to-port isolation are maintained to provide minimal insertion loss and signal reflections. The units incorporate shielded metal cases to control leakage of desired, internal signals and to prevent intrusion of undesired, external signals.

4-Port coupler tap values: 12, 16, 20, 24, 30 dB