58
waveform. Rotate the knob to select the .arb file and then push down the knob or
press the Recall key to recall the IQ data. The Browse key is used to enter the
subdirectory, and the Delete key is used to delete the selected file.
Note:
When the EasyIQ downloads a waveform from PC to the instrument, the
instrument will store the waveform as a .arb file. The file can also be copied to
the instrument by a USB flash disk.
I/Q Adjustment
Choose Parameter→I/Q Adjustment to enter the adjustment interface, as show in
Figure 2-35. The adjust parameters include Gain Balance, I/Q Offset and Angle
Adjustment. Detailed description is shown in the table below:
Table 2-11 IQ Adjustment Parameters
Parameter
Explanation
Gain Balance
Amplitude gain balance, adjusting the difference between I and
Q amplitude, range : -4 dB-4 dB
I/Q Offset
I or Q DC offset, range: -0.25 Vdc-0.25 Vdc
Angle Adjustment
Not supported for now
Figure 2-35 Setting I/Q Adjustment