Frequency: DC - 18.0 GHz, DC - 12.4, DC - 8.0 and DC - 2.0 units available Attenuation Values: 1 - 40 dB as noted Attenuation Accuracy: DC-12.4 GHz 12.4-18.0 GHz 1 - 6 dB + 0.3 dB + 0.5 dB 7 - 20 dB + 0.5 dB + 0.75 dB 21 - 40 dB + 0.7 dB + 1.0 dB Impedance: 50 Ohms VSWR: 1.06 + 0.02 f (GHz) max Power: 10 Watts average @ 40C derated