:INPut:IMPedance:CH1
Description
This command gets or sets the input impedance of channel 1.
Syntax
:INPut<ch>:IMPedance<tr>:CH1
| Command | Query | Query Response |
|---|---|---|
| Yes | Yes | The termination impedance (either 50Ω or 1MΩ) |
Parameters |
Accepted Format |
Allowed Suffixes | Possible Errors | Description |
|---|---|---|---|---|
{ 50[Ohm] | 1e6[Ohm] } |
numeric value (either 50 or 1MA) |
Ohm |
Settings conflict |
The termination impedance. |
To learn more about channels and traces, please refer to the SCPI command structure
Warning
Only in certain measurement modes certain impedance values can be changed. See Allowed Changes for further details.
Allowed Changes
| measurement type | CH1 |
CH2 |
|---|---|---|
GainPhase |
yes |
yes |
S11 |
no |
yes |
S21 |
no |
yes |
Z - ECOupler |
yes |
yes |
Z - EBRidge |
yes |
yes |
Z - IADapter |
no |
no |
Z - P1Reflection |
no |
no |
Z - TSERies |
no |
yes |
Z - TSHunt |
no |
yes |
Z - VCGain |
yes |
yes |
Presets
For presets please refer to Measurement Modes and Default Settings.
Sample usage
Set the impedance of channel 1 to 1MOhm in GainPhase measurement.
visaSession.write(':CALC:PAR:DEF GAIN\n')
visaSession.write(':INP:IMP:CH1 1e6\n')