Microlab coaxial attenuators for wireless applications cover DC to 3 GHz frequency range. The AS is rated at a full 100 Watts and the AU at 200 Watts average rating. The attenuators are constructed of resistive elements in a conventional series circuit. They are bi-directional at low powers, but the male is the input for high powers.* Units are exceptionally rugged, and negligibly affected by normal ambient temperature and humidity changes. Other attenuation values are available to special order. (11/13) *Contact factory for reverse power information.