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10 Chapter 1

General Information

11974 Series Preselected Millimeter Mixers Overview

General Information

11974 Series Preselected Millimeter Mixers Overview

The 11974 Series Preselected Millimeter Mixers are preselected RF front-end sections

used to extend the frequency range of the Agilent Technologies high performance, portable,

and modular spectrum analyzers. The 11974 Series are fully calibrated, system

compatible, and cover a frequency range from 26.5 to 75 GHz in four waveguide bands —

A, Q, U, and V. Control of the 11974 is provided by the host spectrum analyzer's sweep

ramp and first local-oscillator output. The 11974 is packaged as an external module with

flexible cables to the spectrum analyzer in order to facilitate connection to the waveguide

device under test.

The tracking preselector of the 11974, based on barium hexa-ferrite technology, eliminates

the image and multiple harmonic responses that clutter the spectrum display. The

tracking preselector in front of the harmonic mixer eliminates the need for the

time-consuming process of signal identification.

A stand-alone power supply provides the tuning current for the filter. The included

accessory kit contains the cables and tools necessary to make connections to the host

spectrum analyzer.

Figure 1-1 11974 Series with a Power Supply

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Agilent Technologies HP 70910A Guía de usuario Pagina 10