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d
Enter a value by using the numeric keys or the rotary knob.
–
To set the center frequency and the span, complete the following steps:
a
Select the cell next to the Center Frequency.
b
Enter a value by using the numeric keys or the rotary knob.
c
Select the cell next to the Span.
d
Enter a value by using the numeric keys or the rotary knob.
–
To select a band from the band list, complete the following steps:
a
Touch the icon
The Band List window appears. It displays a list of standard bands stored in the
instrument and custom bands created in the JDViewer. See Figure 46 for example.
b
Highlight your choice from the list, and then tap the Apply button on the Band List
window.
The instrument automatically updates the values in the Start Frequency and Stop
Frequency cells with the selected band's start and stop frequencies.
3
Tap the Apply button in the lower-right corner of the setup screen to save the change(s).
Figure 46
Band list window
NOTE
Frequency changes after calibration affect the calibration status. If changed within the
registered band, the status turns into CAL ON (I) and it does not require re-calibration. If
changed off the registered band, the status turns into CAL OFF and it requires
re-calibration.
General parameters
You can select options for Data Points and Interference Rejection.
Procedure
1
Press the SETUP hard key and touch the General tab.
2
To set the measurement resolution, select the Data Points option from the choices: 126, 251,
next to the band list.
CellAdvisor JD720C Series User's Manual
Chapter 9 Smith Chart Testing
81
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