HP Agilent 8970B ,346B Noise Figure set HP 8970B Noise Figure Tester Measure noise figure and gain Frequency range 50 MHz - 1600 MHz External downconverter required for higher frequency output to dispay or graph to XY scope or plotter GPIB interface including : Agilent 346B Noise Source Frequency range `10 MHz - 18 GHz APC 3.5 / SMA connector Tested and OK no adapters,amplifiers,cables included