The WSDU-1X8AR from Becker Nachrichtentechnik GmbH is a Multicoupler with Frequency 0.1 MHz to 4.5 GHz, Gain 7 to 12 dB, Gain Flatness ±1.5 dB, Isolation 100 dB (Reverse Isolation), 35 to 75 dB (Output Isolation), Noise Figure 13 to 16 dB. Tags: Rack Mount. More details for WSDU-1X8AR can be seen below.