Variable inline attenuator
An inline attenuator has FC or ST receptacles or a pigtailed option. Receptacle versions can also be used as ST-to-FC connections and vice versa. Insertion loss for the singlemode version is 0.5 dB typical, and backreflection is better than -75 dB using the pigtailed option. The device has 35-dB range with a 0.1-dB resolution.
Lighthon Research Co.