Keysight N9020B - Page 220

3 Short-Range Comms & IoT Mode
3.2 Modulation Analysis Measurement
:VOLT:IQ: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
Couplings When "Q Same as I" on page 1538 is On, the I Range value will be copied to "Q Range" on page 1537
Changing the value also sets Range = Man
Preset Complex SPECtrum Measurement: 0.5 V Peak
All others: 1 V Peak
State Saved Saved in instrument state
Range 1 V Peak (10 dBm @ 50 Ω) | 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: <I Range>". When Range = Man the annotation is preceded by "#"
The I Range is not annotated in Input Path Q Only. 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 I 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[:I]:RANGe[:UPPer] <ampl>
[:SENSe]:POWer:IQ[:I]:RANGe[:UPPer]?
Example Set the I 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:RANG 4 dBm
:POW:IQ:RANG?
Notes The POWer form of the command is provided for convenience. It maps to the same underlying gain
range parameter as the VOLTage form
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:
50 Ω: 10, 4, -2, -8
75 Ω: 8.2, 2.2, -3.8, -9.8
600 Ω: -0.8, -6.8, -12.8, -18.9
Preset 10.0 dBm
Range -20 dBm to 10 dBm
Min -20 dBm
Max 10 dBm
220 Short Range Comms & IoT Mode User's &Programmer's Reference