The AD-USB PT5 from Adaura Technologies is a 4 Channel Attenuator that operates from 50 to 6000 MHz. It has an attenuation range from 0 to 63 dB in 0.5 dB steps and have a switching time of 250 µs. The attenuator can handle an input power of up to 1 W, provides chain-to-chain isolation of more than 85 dB, and has an insertion loss of less than 9 dB. It can be powered and controlled via a USB Interface from a PC. The attenuator has an intuitive GUI that provides quick access to testing functions. It is available in an enclosure that measures 144.70 x 121.20 x 6.40 mm and has an EAR99 export classification.