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7
Remote Programming
Time Base Commands
:TIMebase:REFClock
Returned Format
156
The TIMebase subsystem commands control the reference clock source of
the digitizer.
Command
:TIMebase:REFClock{INTernal | E010 | E100}
Description
The command selects the reference clock source.
INTernal Internal 10 MHz reference oscillator (default)
E010 External 10 MHz reference
E100 External 100 MHz reference
The following errors are detected, when an external reference clock source
is selected:
•
Amplitude of external reference signal too small.
•
Amplitude of external reference signal too big.
•
Frequency of external reference signal out-of-range.
These errors are reported in the STATus subsystem. After selecting a new
reference clock source, the status should be queried. In all these error
cases, the external reference signal is not usable, and the module
automatically selects the internal reference oscillator.
Query
:TIMebase:REFClock?
The query returns the currently selected reference clock source.
[:TIMebase:REFClock] {INTernal | E010 | E100}<NL>
Keysight M8131A 16/32 GSa/s Digitizer User's Guide
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