Agilent Technologies 8935 Series Especificaciones Pagina 168

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Chapter 7 167
Periodic Adjustments
Periodic Calibration Menu Descriptions
Figure 7-4 Measurement (A2A33) Assembly Test Points
Audio Frequency Generator Gain
The gain of the following paths is calibrated:
The internal paths that run from Audio Frequency Generators 1 and
2 (individually) through the Modulation Distribution assembly, to
the monitor select output, then onto Audio Analyzer 1 to the DVM.
The paths that run from Audio Frequency Generators 1 and 2
(individually) through the Modulation Distribution assembly to the
AUDIO OUT connector, externally to the rear-panel MODULATION
IN connector, then again through the Modulation Distribution
assembly to the monitor select output and to the DVM.
The above-measured levels are used to adjust the output level of the
audio generators so that they produce a calibrated level to the
modulation inputs of the RF generator. These measurements are made
at DC. Both positive and negative levels are measured to produce an
optimum calibration factor.
SGND
+REF -REF
Measurement Board Assembly
a2a33_1.eps
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