Agilent Technologies X Series Manual page 363

Initial S/W Revision
I Range
This is the internal gain range for the I channel when Input Path is I Only or Ind I/Q, and it is used for
both the I and Q channels when the Input Path is I+jQ. See
Key Path
Remote Command
Example
Notes
Couplings
Preset
State Saved
Range
Initial S/W Revision
Remote Command
Example
Notes
Preset
Range
Prior to A.02.00
AMPTD Y Scale, Range
[:SENSe]:VOLTage:IQ[:I]:RANGe[:UPPer] <voltage>
[:SENSe]:VOLTage:IQ[:I]:RANGe[:UPPer]?
Set the I Range to 0.5 V Peak
VOLT:IQ:RANG 0.5 V
The numeric entries are mapped to the smallest gain range whose break point
is greater than or equal to the value, or 1 V Peak if the value is greater than 1
V.
When Q Same as I is On, the I Range value will be copied to the Q Range.
Changing the value will also set Range = Man.
1 V Peak
Saved in instrument state
1 V Peak | 0.5 V Peak | 0.25 V Peak | 0.125 V Peak
Prior to A.02.00
[:SENSe]:POWer:IQ[:I]:RANGe[:UPPer] <ampl>
[:SENSe]:POWer:IQ[:I]:RANGe[:UPPer]?
Set the I Range to 0.5 V Peak when Reference Z is 50Ω, and to 1.0 V Peak
when Reference Z is 75Ω.
POW:IQ:RANG 4 dBm
The POWer form of the command is provided for convenience. It maps to the
same underlying gain range parameter as the VOLTage form of the command.
The Reference Z (not the I channel Input Z) is used to convert the power to
peak voltage, which is then used to set the I Range as with the VOLTage form
of the command. The power values of the 4 range states (1V Peak, 0.5V Peak,
0.25V Peak, and 0.125V Peak) will vary with Reference Z. Here are some
examples:
50Ω: 10, 4, –2, –8
75Ω: 8.2, 2.2, –3.8, –9.8
600Ω: –0.8, –6.8, –12.8, –18.9
10.0 dBm
–20 dBm to 10 dBm
"I/Q Gain Ranges" on page
AMPTD Y Scale
366.
363