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354 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide

11 :CHANnel<n> Commands

:CHANnel<n>:PROBe

(see page 1610)

Command Syntax

:CHANnel<n>:PROBe <attenuation>

<attenuation> ::= probe attenuation ratio in NR3 format

<n> ::= 1 to (# analog channels) in NR1 format

The obsolete attenuation values X1, X10, X20, X100 are also supported.

The :CHANnel<n>:PROBe command specifies the probe attenuation factor for the

selected channel.

The probe attenuation factor may be from 0.001 to 10000.

This command does not change the actual input sensitivity of the oscilloscope. It

changes the reference constants for scaling the display factors, for making

automatic measurements, and for setting trigger levels.

If an AutoProbe probe is connected to the oscilloscope, the attenuation value

cannot be changed from the sensed value. Attempting to set the oscilloscope to

an attenuation value other than the sensed value produces an error.

Query Syntax

:CHANnel<n>:PROBe?

The :CHANnel<n>:PROBe? query returns the current probe attenuation factor for

the selected channel.

Return Format

<attenuation> ::= probe attenuation ratio in NR3 format

See Also • "Introduction to :CHANnel<n> Commands" on page 345

• ":CHANnel<n>:RANGe" on page 363

• ":CHANnel<n>:SCALe" on page 364

• ":CHANnel<n>:OFFSet" on page 353

Example Code

' CHANNEL_PROBE - Sets the probe attenuation factor for the

' selected channel. The probe attenuation factor may be set

' from 0.001 to 10000.

myScope.WriteString ":CHANnel1:PROBe 10" ' Set Probe to 10:1.

See complete example programs at: Chapter 44, “Programming Examples,”

starting on page 1619

Keysight Technologies InfiniiVision 4000 X Series User Manual

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