Agilent Technologies HP 8642A/B Specifiche Scaricare il pdf (Pagina 173)

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TUNE VOLTAGE: The Tune Voltage can be configured to tune the VCO

Source directly (Reference or DUT), or to tune the Time Base when the

Time Base has been configured to tune the Reference Source. One of the

two sources being measured must be a VCO, either directly or through at

Time Base.

TIME BASE: The Time Base connects directly to the Reference Source.

The Time Base can be either an HP 11848A Internal 10 MHz A or the

10 MHz B Source, or a Users VCO Source under Manual Control.

DUT (DEVICE UNDER TEST): The System will allow you to specify a

USER'S Source, or any of the HP 11848A Internal Sources as a System

Controlled DUT. A DUT can be placed under System Control if its setup

can be controlled with an HP-IB BASIC Character string statement. (An

RF Source defined in the System Configuration Table cannot be selected

as the DUT source).

DUT SETUP STRING: The DUT setup string field provides for entry

of the required command string for setting up the DUT source for

the measurement when the DUT is to be under System Control. (The

HP 11848A's Internal Sources do not require entry of a setup string.)

For example, for an HP 8642B Signal Generator, the following command

string would be required to Preset the instrument and set it to 100 MHz

at 16 dBm. (Refer to the operating manual provided for the source being

used for appropriate HP-IB commands.)

OUTPUT 719: "PP FR 100MZ AP16DM"

DN CONV: The Down Converter is used to down convert the DUT

frequency to a frequency within the frequency range of the Reference

Source. The Down Converter can be either a Users device under Manual

Control or an HP 11729C under either System or Manual Control. (The

HP 11729C must be listed in the System Configuration Table to be under

System Control.)

Source Control: $N w/PLL 2-103

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Agilent Technologies HP 8642A/B Specifiche Pagina 173

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