This attenuator set contains 1N attenuator of each attenuation vale listed below 3 dB - R414703127, 6 dB - R414706127, 10 dB - R414710127, 20 dB - R414720127. This set is delivered with attenuation and accuracy measurements. These values reported are those corresponding to the frequencies between 1 GHz and 18 GHz with a step of 1 GHz and DC values