[:Sense]:Roscillator Subtree - HP 53131A/132A 225 MHz Programming Manual

225 mhz universal counter
Table of Contents

Advertisement

Chapter 4 Command Reference
[:SENSe] Subsystem
[:SENSe]:PHASe:ARM[:STARt]:SOURce IMMediate | EXTernal
Sets or queries the start arm for Phase measurements.
Query Response
A sequence of ASCII-encoded bytes: IMM or EXT
Comments
*RST: IMMediate
Related
Gate & ExtArm
Front-Panel
Keys

[:SENSe]:ROSCillator Subtree

This subtree controls the Reference Oscillator .
[:SENSe]:ROSCillator:EXTernal:CHECk ON | OFF | ONCE
Sets or queries the enable for "checking" the validity and presence of the external
reference.
When CHECk is ON and external has been explicitly selected
([:SENS]:ROSC:SOUR is EXT and [:SENS]:ROSC:SOUR:AUTO is OFF), the
Counter checks the external reference signal to ensure that the frequency is 1, 5, or
10 MHz and that the reference is present at measurement completion. Note that
the HP 53132A only accepts 10 MHz. When CHECk is OFF, the external
reference signal is not checked at all.
CHECk ONCE is an event which invokes the external reference check at the time
the command is executed. ONCE is only permitted if [:SENS]:ROSC:SOUR is
EXT; otherwise, error -221 is generated.
If the CHECk ONCE does not detect a valid timebase, error +2009 is generated.
After the check is completed, this command' s parameter is set to OFF.
4-92
Programming Guide

Advertisement

Table of Contents
loading

This manual is also suitable for:

53131a53132a

Table of Contents