Agilent Technologies X Series Manual page 421

Combined Differential/Input Z (Remote Command Only)
This is Remote Command only (no front panel) and is for backwards compatibility only. It combines the
Differential Input and Input Z selections into a single SCPI command.
Remote Command
Example
Notes
Couplings
Preset
Initial S/W Revision
Q Setup
Access the channel setup parameters for the Q channel.
Key Path
Readback Text
Initial S/W Revision
:INPut:IMPedance:IQ U50|B50|U1M|B1M
:INPut:IMPedance:IQ?
:INPut:IMPedance:IQ U50
This is equivalent to the following two SCPI commands:
:INP:IQ:DIFF OFF
:INP:IQ:IMP 50
The enum values translate as follows:
U50: Differential Input = Off, Input Z = 50Ω
B50: Differential Input = On, Input Z = 50Ω
U1M: Differential Input = Off, Input Z = 1 MΩ
B1M: Differential Input = On, Input Z = 1 MΩ
This command is for backwards compatibility. It combines the Input Z (50Ω
or 1 MΩ) parameter with the Differential Input (Off = "Unbalanced", On =
"Balanced") parameter into a single enumeration.
This backwards compatibility SCPI command was for an instrument without
independent settings for the I and Q channels. Therefore, it is tied only to the I
channel and does not provide an equivalent for the Q channel. For proper
operation of the backwards compatibility command Q Same as I should be set
to On.
Also, note the subtle difference between this SCPI command and the
backwards compatibility command for Input Z. The Input Z SCPI has "IQ"
before "IMP" while this command has that order reversed.
This command does not have an independent parameter, but instead is tied to
the Differential Input and Input Z parameters. The coupling for those
parameters apply to this command too.
U50
Prior to A.02.00
Input/Output, I/Q
When Q Same as I is On the readback is "Q Same as I".
Prior to A.02.00
Input/Output
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