Anritsu FAQs

The first step in using the sliding load is to check and adjust, if necessary, the width of the pin depth gauge. Then the pin depth of the sliding load must be set to minus .0002 This pin gap insures that the shoulders of the male and female connectors are sufficiently spaced so as not to meet, yet they are close enough that the characteristic impedance at the interface is not adversely affected. After the pin gap is set, the sliding load must be mated to the test port of the VNA when prompted by the analyzer during calibration. Always position the slider as close to the test port as possible when making connection. This will aid in centering the pin. It is easier to mate the connectors when they are in the vertical plain, again to make it easier to align the two connectors. Gently tap the shaft of the sliding load if the center conductor is obviously misaligned. When visually centered, carefully mate the sliding load to the test port connector. The Anritsu VNA will prompt the user through all the steps to accomplish a sliding load calibration. When prompted, insert the fixed load, this termination sets the characteristic impedance for frequencies below 2 GHz.