:INPut:IMPedance:CH2

Description

This command gets or sets the input impedance of channel 2.

Command
Query

Syntax	Parameter
`:INPut:IMPedance:CH2`	{ `50[Ohm]` \| `1e6[Ohm]` }

Parameters	accepted format	allowed suffixes	possible Errors	description
{ `50[Ohm]` \| `1e6[Ohm]` }	numeric value (either `50` or `1MA`)	`Ohm`	`Settings conflict`	The termination impedance.

Syntax	Response
`:INPut:IMPedance:CH2?`	{ `50` \| `1000000` }

Response value	description
{ `50` \| `1000000` }	the termination impedance (either 50Ω or 1MΩ)

Warning

Only in certain measurement modes certain impedance values can be changed. If setting the impedance of the selected channel is not allowed in the selected measurement mode, the command is ignored and a Settings conflict error is added to the Error Event Queue.

Allowed Changes

measurement type	`CH1`	`CH2`
`GainPhase`	`yes`	`yes`
`S11`	`no`	`yes`
`S21`	`no`	`yes`
`Z` - `P1Reflection`	`no`	`no`
`Z` - `TSERies`	`no`	`yes`
`Z` - `TSHunt`	`no`	`yes`

Presets

measurement type	`CH1` - default value	`CH2` - default value
`GainPhase`	`1MA`	`1MA`
`S11`	-	`50`
`S21`	-	`50`
`Z` - `P1Reflection`	-	-
`Z` - `TSERies`	-	`50`
`Z` - `TSHunt`	-	`50`

Sample usage

Set the impedance of channel 2 to 1MOhm in GainPhase measurement.

C#
Python

var visaSession = new TcpipSocket(VISA_RESOURCENAME);
visaSession.RawIO.Write(":CALC:PAR:DEF GAIN\n");
visaSession.RawIO.Write(":INP:IMP:CH2 1e6\n");

:INPut:IMPedance:CH1

ExternalProbeChannel2 (Gain)

TerminationChannel2 (S11)

TerminationChannel2 (S21)

TerminationChannel2 (SeriesThru)

TerminationChannel2 (ShuntThru)