Agilent Technologies X Series Manual page 402

Input/Output
exceed these nominal values; the absolute maximum and minimum frequency for each preset are shown
in the tables that accompany the key descriptions for the Mixer Presets.
You may customize the Harmonic Table, but when you do this the analyzer goes into "single harmonic"
mode. You may enter the harmonic number and whether to use the doubler or not, but now range
switching is not supported, so you can only have one harmonic.
When you edit the Harmonic Table, the Mixer Selection changes to "Custom." To change it back you
must go back into the Mixer Presets menu and select a Preset.
When you edit the Harmonic Table, the nominal Min Freq and Max Freq that are available will usually
be different than the Preset you were using; and the absolute frequency limits will change as well. This
may result in a change to your Start and/or Stop Freq, if the current values fall outside the new range,
requiring you to retune your Center Freq to get your signal back in the center.
Mixer Presets
This menu lets you preset the mixer setup for the particular type of mixer that you are using.
These presets are divided into four groups, one for Agilent legacy mixers, and three for general purpose
mixers. Note that the IF/LO port provides 3.8–14 GHz LO in two bands: 3.8–8.7 (LO fundamental), and
8.6–14 GHz (doubled LO). The presets that use a single harmonic and no doubling are provided as one
group of presets; presets that use a single harmonic but double the LO are another group; and presets that
use multiple harmonics are a fourth group.
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