Agilent, Keysight

Keysight-Agilent 8510C

Features:
45 MHz to 50 GHz / 110 GHz
The fastest sweep mode available for any network analyzer
Thru-Reflect-Line precision two-port calibration for coaxial measurements
Line-Reflect-Match calibration for on-wafer and in-fixture applications
Internal "adapter removal" feature for measuring noninsertable devices with exceptional accuracy
Four S-parameter color display
Data storage on an internal 3.5 disk drive or data output to a GPIB or serial (RS-232) plotter or printer.