Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.11 IQ Waveform Measurement
Q Range
The internal gain range for the Q channel. Q Range only applies to Input Path Q Only
and Ind I/Q. For input I+jQ "I Range" on page 1535 determines both I and Q channel
range settings.
Remote
Command
[:SENSe]:VOLTage:IQ:Q:RANGe[:UPPer] <voltage>
[:SENSe]:VOLTage:IQ:Q:RANGe[:UPPer]?
Example Set the Q Range to 0.5 V Peak:
:VOLT:IQ:Q:RANG 0.5 V
:VOLT:IQ:Q:RANG?
Notes 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
Q Range is only used for Input Path Q Only and Ind I/Q. For input I+jQ, "I Range" on page 1535
determines both I and Q channel range settings
Couplings When "Q Same as I" on page 1538 is On, the "I Range" on page 1535 value is copied to Q Range and
the range value keys are disabled
Changing the value also sets Range = Man
Preset 1 V Peak
State Saved Saved in instrument state
Range 1 V Peak (10 dBm @ 50Ω) | 0.5 V Peak (4 dBm @ 50Ω) | 0.25 V Peak (-2 dBm @ 50Ω) | 0.125 V Peak (-
8 dBm @ 50Ω)
Min 0.125 V
Max 1 V
Annotation The Range annotation replaces the RF Input context's "Atten" annotation
"Rng: <Q Range>". When Range = Man the annotation is preceded by "#"
The Q Range is not annotated in Input Path I Only or I+jQ. When I Range and Q Range are the same, the
annotation is "Rng: <Range>". When I Range and Q Range are different and the Input Path is Ind I/Q,
the annotation is "Rng: <I Range>, <Q Range>" and "Peak" is removed from the text. Examples:
"Rng: 1 V Peak" the Q Range is 1 V Peak
"Rng: 1 V, 0.5 V " the I Range is 1 V Peak and the Q Range is 0.5 V Peak
This is an alternate form of the command to allow entry as a power.
Remote
Command
[:SENSe]:POWer:IQ:Q:RANGe[:UPPer] <ampl>
[:SENSe]:POWer:IQ:Q:RANGe[:UPPer]?
Example Sets the Q Range to 0.5 V Peak when Reference Z is 50Ω , and to 1.0 V Peak when Reference Z is
75Ω :
:POW:IQ:Q:RANG 4 dBm
:POW:IQ:Q:RANG?
Notes The POWer form of the command is provided for convenience. It maps to the same underlying gain
Short Range Comms & IoT Mode User's &Programmer's Reference 1537

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)