Programming Reference

SCPI Instrument Command List

Description

Use this command to set/read the pulse frequency. Select the frequency

 

source for the pulse frequency using :TRIGger:SOURce. The currently

 

selected source is programmed by this command. Note that the specified

 

limits and available resolution depend on the selected source.

 

You cannot set the pulse frequency if you have selected the CLK IN

 

connector as the frequency source (:TRIG:SOUR EXT).

Example

:TRIG:SOUR INT

Select internal PLL as pulse trigger

 

:FREQ 75MHz

Set pulse frequency to 75 MHz

Command

:FREQ:AUTO

 

Long

[:SOURce]:FREQuency[:CW][:FIXed]:AUTO

Form

Event

 

Parameter

ONCE

 

*RST value

Not applicable

 

Description

Use this command to measure the frequency at the CLK IN connector. If

 

the CLK IN connector is the selected pulse frequency source, you can

 

then read the measured value with :FREQ?

Example

:TRIG:SOUR EXT2

Select ext CLK IN as pulse trigger

 

:FREQ:AUTO ONCE

Measure frequency at CLK IN

 

:FREQ?

Query pulse frequency

Command

:HOLD

Long

[:SOURce]:HOLD

Form

Set & Query

Parameter

VOLTage CURRent

*RST value

VOLT

Description

Use this command to enable either of the [:SOURce]:VOLTage or

 

[:SOURce]:CURRent subsystems.

 

You can control the signal levels of the instrument OUTPUTs in terms of

 

voltage or current.

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Agilent Technologies Agilent 81130A 400 Connector as the frequency source Trigsour EXT, Freqauto, Once, Voltage or current