Technical data

760 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
30 Time Base Commands
:TIMebase:REFClock
Command :TIMebase:REFClock {{ON | 1} | {OFF | 0} | HFRequency}
The :TIMebase:REFClock command enables or disables the 10 MHz REF IN
BNC input (ON or OFF) or the 100 MHz REF IN SMA input (HFRequency
or OFF) located on the rear panel of the oscilloscope.
When this feature is enabled, the external reference input is used as a
reference clock for the oscilloscope's horizontal scale section instead of the
internal reference clock.
Example This example turns on the 10 MHz reference clock mode.
myScope.WriteString ":TIMebase:REFClock ON"
Query :TIMebase:REFClock?
The :TIMebase:REFClock? query returns the current state of the reference
clock mode control.
Returned Format
[TIMebase:REFClock] {1|0|HFR}<NL>
Example This example places the current value of the reference clock mode control
in the variable, varSetting, then prints the contents of the variable to the
computer's screen.
myScope.WriteString ":SYSTEM:HEADER OFF" ' Response headers off.
myScope.WriteString ":TIMebase:REFClock?"
varSetting = myScope.ReadNumber
Debug.Print FormatNumber(varSetting, 0)