The Agilent 85057B verification kit has a 2.4 mm connector and covers a frequency range of 45 MHz to 50 GHz. This kit includes a 50 ohm airline, stepped impedance airline, 20 dB and 40 dB attenuators. The verification kit is used with an Agilent 85056A 2.4 mm calibration kit and network analyzer, including the Agilent 8510, 8719/20/22 and PNA Series Verification kits are used to verify that a network analyzer is operating within its specified performance. All verification kits include measurement data and uncertainties that are traceable to the U.S. National Institute of Standards and Technology (NIST).