Ceyear 1465 Series, Руководство по программированию

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3 SCPI
3.3 Instrument subsystem command
83
Set Gain Balance of I/Q signal to 0dB.
Reset status: 0dB
Key Entry:
【
I/Q
】 —>[ I/Q Input Adj]—>[Gain Balance]
[:SOURce]:DM:IQADjustment:IOFFset <Offset>
Function: When I/Q Adjust is turned on, set the offset of the signal generator I channel. The set
parameters are in percent. The maximum corresponds to 1.5 V DC and the minimum
resolution is 0.025%. The parameter completes the suppression of carrier leakage
signal. Carrier leakage increases after users complete other adjustments, such as
orthority and modulation attenuation. It is necessary to adjust DC offset after other
adjustments are completed.
Setting format: [:SOURce]:DM:IQADjustment:IOFFset <val>
Query format: [:SOURce]:DM:IQADjustment:IOFFset?
Parameter:
<Offset> I/Q signal I offset.
Range: 0 [-50
，
+50].
Example: :DM:IQADjustment:IOFfset 30
Set I Offset to 30%.
Reset status: 0
Key Entry:
【
I/Q
】 —>[ I/Q Input Adj]—>[ I Offset]
[:SOURce]:DM:IQADjustment:QOFFset <Offset>
Function: This command is used for setting Q channel offset of the signal generator in percent. The
maximum value corresponds to DC 1.5V. The minimum resolution is 0.025%. The
parameter completes the suppression of carrier leakage signal. Carrier leakage
increases after users complete other adjustments, such as orthority and modulation
attenuation. It is necessary to adjust DC offset after other adjustments are completed.
Setting format: [:SOURce]:DM:IQADjustment:QOFFset <val>
Query format: [:SOURce]:DM:IQADjustment:QOFFset?
Parameter:
<Offset> I/Q signal Q offset.
Range: 0 [-50
，
+50].
Example: :DM:IQADjustment:QOFFset 30
Set Q Offset to 30%.
Reset status: 0
Key Entry:
【
I/Q
】
—>[ I/Q Input Adj]—>[ Q Offset]
[:SOURce]:DM:IQADjustment:QSKew <Offset>
Function: When I/Q Adjust is turned on, this command adjusts the phase angle between I and Q
vectors by increasing or decreasing the phase angle of I or Q. If the current carrier
frequency exceeds 3.2 GHz, the error of orthority offset may exceed that specified in
the sample specification of 1465 series signal generator.