A Mono-directional broadband 3dB “Thru-line” attenuatorworking from DC to 1GHz with ±0.85dB error. Useable to 1.5GHz Power rating is 250Watts (forward) 50W reverse. VSWR: 1: 1.5 Connectors: “N”(f) input, N”(f) output. Size: 196mm (L) x 70mm sq. Weight: 1.25kg. Calibration charts are supplied with device.