CALCulate:PARameter<tr>:DEFine <char>

(Read-Write)  Set and query the current measurement.

Relevant Modes

CAT, NA, PAA, NF, VVM

Parameters

<tr>

Trace number (NA mode ONLY). Choose from 1 to 4.  Choices 2, 3, 4 require that the appropriate multi-trace configuration first be created using :DISPlay:WINDow:SPLit.

Trace number (NF mode Only). Choose from 1 and 2.Choice 2 requires that the appropriate multi-trace configuration first be created using :DISPlay:WINDow:SPLit.

All other modes, do NOT specify.

<char>

Measurement parameter. Choose from:

For CAT Mode:

• RLOSs - Return Loss

• DTF1 - Distance To Fault

• DTF2 - DTF + Return Loss

• DTF3 - DTF (VSWR)

• DTF4 - DTF Linear

• CLOSs - Cable loss 1 port

• ILOSs - 2-port Insertion loss

• VSWR - SWR

Available ONLY with Opt. 215

• TDR  - Linear Rho

• STEP - TDR Ohm

For NA Mode:

Reverse measurements are available ONLY with full S-parameter option.

• S11 - Forward reflection measurement

• S21 - Forward transmission measurement

• S12 - Reverse transmission

• S22 - Reverse reflection

• A - A receiver measurement

• B - B receiver measurement

• R1 - Port 1 reference receiver measurement

• R2 - Port 2 reference receiver measurement

For NF Mode:

• NFIG - Noise Figure

• NFAC - Noise Factor

• GAIN - Gain

• NTEM - Noise temperature

• YFAC - Y-Factor

Available ONLY with Opt. 212

• SCC11 - Common reflect/common incident for logical port 1

• SDD11 - Differential reflect/differential incident for logical port 1

• SDC11 - Differential reflect/common incident for logical port 1.

• SCD11 - Common reflect/differential incident for logical port 1.

For VVM Mode:

• S11 - 1-port cable trimming

• S21 - 2-port transmission

• AB  A/B ratio (NOT available on N9912A)

• BA  B/A ratio (NOT available on N9912A)

Examples

CALC:PAR:DEF DTF2

'NA mode

CALC:PAR2:DEF S21

Query Syntax

CALCulate:PARameter<tr>:DEFine?

Return Type

Character

Default

Cat Mode: S11

NA Mode: S11 (trace 1)

VVM Mode:S11