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System and Option Specifications

The System specifications and Option specifications are iisted in Table 1-1

and Table 1-2 respectively. Specifications describe the instrument's war-

ranted performance. Supplemental characteristics are intended to provide

information useful in applying the instrument by giving typical, but not

warranted performance parameters. These supplemental characteristics are

denoted as "typical," "nominal," or "approximate."

National Bureau of Standards Traceability

Measurement of phase noise is a ratio measurement where both the

numerator (the noise power) and the denominator (the carrier's power)

of the ratio are measured by the same system spectrum analyzer(s). The

accuracy of this relative measurement depends on the amplitude linearity

of the spectrum analyzer. (A precision attenuator is used, to verify the

linearity specification of the spectrum analyzer.) The amplitude linearity

calibration of the spectrum analyzer is be traceable to the National Bureau

of Standards (NBS) if the precision attenuator and other instruments used

to perform the calibration are traceable to NBS.

rev.05SEP89

General Information 1-11

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Agilent Technologies HP 8642A/B Specifiche Pagina 56

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