Agilent Technologies 81101A - Page 55

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Programming Reference
SCPI Instrument Command List
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 To measure and read the frequency at the CLK-IN connector:
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’s OUTPUT in terms of
voltage or current.
:TRIG:SOUR EXT
:FREQ:AUTO ONCE
:FREQ?
Select ext CLK-IN as pulse trigger
Measure frequency at CLK-IN
Query pulse frequency