Shown here are the electrical specifications and the circuit diagrams of the ATS series. The ATS series is available in 1dB increments up to 10dB. Attenuation tolerance is ±0.5dB up to 2GHz and ±0.75dB between 20GHz and 30GHz. The VSWR is 1.5 max up to 20GHz and 1.7 max between 20GHz and 30GHz. Depending on the attenuation, the number of resistive elements and terminal configurations differ.