Agilent ESA E4407B 26 GHz spectrum analyzer full licensed Frequency range 9 kHz - 26.5 GHz Resolution bandwidth 1 Hz - 3 Mhz 1D5 1D6 1DR 1DS 226 227 229 A4H AYX AYZ B72 B7B BAA J36 High stability Oven Timebase Has ALL possible licenses enabled Firmware A.14.06 Build in Pre Amplifier to 3 GHz External Mixing is enabled. To use it put 2 SMA connectors in the holes on front ( behind the plastic foil ) Fast zero span digitizer Phase Noise package Alignment is fully automatic Carrying handle is included All other packages can be loaded and will work as the necessary hardware is provided. Licenses are enabled. Unit has GPIB and printer port VGA output on the back for external display N front connector AM, FM demodulator with speaker Hewlett Packard Agilent Keysight