The N1021B kit contains shorts and loads. Why would I need an N1024A TDR Calibration kit?
The N1024A is a complete set of premium male and female shorts, male and female loads, a pair of broadband cables and a torque wrench. It is therefore the optimum tool set to make accurate measurements on devices with SMA or 2.92 mm connectors. The N1021B's shorts, loads and adapters have been selected to meet the technical needs of the differential TDR probe.