A Mono-directional 3dB broadband “Thru-line” Attenuator working from DC to 1GHz with +-0.85dB error. Continuous power rating is 500Watts (forward) 50W (reverse). Mono Directional Total frequency range and vswr: 1:1.5, DC-1500MHz. Connectors: “N”(m) input, “N”(f) output. Be sure to check your connection genders. Adapters & short cable lengths can be ordered as extras. Size: 196mm (L) x 70mm sq. Weight: 1.25kg.