The Agilent 11582A contains a set of four 8491B attenuators 3, 6, 10, and 20 dB furnished in a handsome walnut accessory case. The Agilent 8491B are type-N connectors with a maximum frequency of 18 GHz. This set is ideal for calibration labs or where precise knowledge of attenuation and SWR is desired. Features Multiple dB attenuators included in one set Type-N connectors Maximum frequency: 18 GHz Walnut accessory case