6 Input/Output
6.2 Input
Legacy HP/Agilent and some third-party mixers have separate LO In and IF out
connections. This requires you to use an external diplexer to connect these mixers. A
diplexer can easily be purchased for this purpose (for example, Diplexer Model #
DPL.26 or # DPL.313B from OML Inc., Morgan Hill, California, USA).
The connection diagram for such a legacy mixer is:
In addition, External Mixing in the X-Series supports the new Keysight M1970 series
of Harmonic Mixers, which provide a USB connection for download of calibration
data and additional control.
The connection diagram for one of the Keysight USB mixers is:
2334 Spectrum Analyzer Mode User's &Programmer's Reference
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