Agilent Technologies 35670A Manual page 223

Dynamic signal analyzer gpib programming

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CALCulate[1|2|3|4]:UNIT:DBReference:IMPedance

Specifies the system's reference impedance value in ohms (Ω).

Command Syntax:

<number> ::= a real number (NRf data)

<unit> ::= [OHM]

<step> ::= UP|DOWN

<bound> ::= MAX|MIN

Example Statements:

Query Syntax:

Return Format:

Attribute Summary:

Description:

This command specifies the system reference impedance for the dBm reference level. The dBm unit is

referenced to 1 milliwatt. Specify a value that matches the impedance of the system under test.

For example, the system impedance of a telephone system is typically 600 Ω.

The trace specifier, CALCulate [1|2|3|4], determines which trace you are selecting. Omit the specifier or

send 1 for trace A, 2 for trace B, 3 for trace C, or 4 for trace D.

CALCulate[1|2|3|4]:UNIT:DBReference:IMPedance {<number>

[<unit>]}|<step>|<bound>

OUTPUT 711;":calc2:unit:dbr:impedance 600"

OUTPUT 711;"CALC:UNIT:DBR:IMP 3.2e3 ohm"

CALCulate[1|2|3|4]:UNIT:DBReference:IMPedance?

not applicable

Synchronization Required:

Preset State:

SCPI Compliance:

instrument-specific

command/query