Chapter 10 2-Port Transmission Testing
88
CellAdvisor JD720C User's Manual
Vertical Layout
tab if you want to view dual measurements displayed on one screen.
Setting parameters
Frequency
You can manually set a frequency band to be measured by entering start and stop
frequencies, or center frequency and span. You can also select a frequency band from the
band list stored in the instrument. It is desirable to set the frequency to a value that covers a
normal range of the measurement with enough margins.
Figure 51
Frequency setup window for 2-port transmission measurements
Procedure
1
Press the
SETUP
hard key and touch the
Frequency
tab.
2
Do one of the following:
–
To set the start and stop frequencies, complete the following steps:
a
Select the cell next to the
Start Frequency
.
b
Enter a value by using the numeric keys or the rotary knob.
c
Select the cell next to the
Stop Frequency
.
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
next to the band list.
The Band List window appears. It displays a list of standard bands stored in the
instrument and custom bands created in the JDViewer. See
