The Agilent (HP) 8565A is a Spectrum Analyzer that covers the 10 MHz to 22 GHz frequency range with internal mixing, up to 40 GHz with external mixing.
Absolute amplitude calibration.
Wide choice of resolution bandwidths (3 dB) from 1kHz to 3MHz, in 1-3 sequence
Bandwidth and span width are independently variable.
Option 100 = 100Hz and 300Hz Resolution Bandwidth
Option 200 = Calibration in dBµV
Option 400 = Internal 50 to 400Hz Power Supply
Option 908 = Rack Flange Kit
Option 910 = Extra Operating and Service Manual
Option 913 = Rack Flange Kit for Instruments with Handles