HP 8642A Operation And Calibration Manual

Operation
MODULATION
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Model 8642A/B
These keys make AM, FM, or .pM the active function so
its value can be set using either Data keys, the Knob,
Step keys, or the Off/On key. Also Pulse Modulation
can be turned on or off. You can select either AM or
Pulse Modulation simultaneolJsly with either FM or .pM.
The Modulation Source keys select whether an internal
or external source is used (or internal and external
sources combined). The source of the external
modulation is coupled through the input connectors.
The key is used to set the modulation frequency for all
internal modulation sources and for the modulation
output. The key is also used to set the modulation
output level for the Mod Output connector.
These terminator keys enable you to complete a data entry.
Figure 3-11. Modulation-Related Functions
3-96

HP 8642A Specifications

General

Brand	HP
Model	8642A
Category	Inverter
Language	English