HP 81101A Reference Manual page 54

Programming Reference
SCPI Instrument Command List
Example
To set and activate the current limits for the output:
:HOLD CURR
:CURR:LIM 50MA
:CURR:LIM:LOW –50MA
:CURR:LIM:STAT ON
Command
:FREQ
Long
[:SOURce]:FREQuency[:CW|:FIXed]
Form Set & Query
Parameter
Numeric
Parameter Suffix
Hz with engineering prefixes, or MHZ for Megahertz.
Value coupling
Period =
*RST value 1.00 MHz
Specified limits
1 mHz to 50 MHz
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
To set the pulse frequency to 40 MHz:
:TRIG:SOUR INT
:FREQ 40MHz
54
1
Frequency
Enable CURRENT subsystem
Set OUTPUT high level current limit to 50 m
Set OUTPUT low level current limit to –50m
Switch on OUTPUT limits
Select internal osc. as pulse trigger
Set pulse frequency to 40 MHz