:INPut:ATTenuation:CH1

Description

This command gets or sets the attenuation of channel 1.

• Command
• Query

Syntax	Parameter
:INPut:ATTenuation:CH1	<numeric>

Parameters	accepted format	allowed suffixes	possible Errors	description
<numeric>	numeric value	none	none	The attenuation in dB.

Accepted values

Warning

Not all attenuation values are valid. For a list of possible values please refer to Measurement Modes.

Presets

measurement type	CH1 - default value	CH2 - default value
GainPhase	20 dB	20 dB
S11	10 dB	10 dB
S21	20 dB	20 dB
Z - P1Reflection	10 dB	10 dB
Z - TSERies	20 dB	20 dB
Z - TSHunt	20 dB	20 dB

Sample usage

Set the attenuation of channel 1 to 10dB.

• C#
• Python

var visaSession = new TcpipSocket(VISA_RESOURCENAME);
visaSession.RawIO.Write(":CALC:PAR:DEF S21\n");
visaSession.RawIO.Write(":INP:ATT:CH1 10\n");

Related commands

:INPut:ATTenuation:CH2

Related commands in the Automation Interface

Attenuation (Gain)

Attenuation (OnePort)

Attenuation (S11)

Attenuation (S21)

Attenuation (SeriesThru)

Attenuation (ShuntThru)