The 85023C System Verification Kit contains a set of precision components used to perform a system verification procedure for the 8757S/56S Scalar Network Analyzer System. This procedure, which is in the 8757A/56A Operating and Service Manual, checks system installation and can be used as a daily functional test. The kit is used for 50-ohm, Type-N applications. The kit includes an open, short, 10 dB fixed attenuator, 50-ohm termination, and a source to directional bridge adapter. The frequency range of the unit is dc to 18GHz.