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Chapter 6 DTF Testing
54
CellAdvisor JD720C User's Manual
No.
Description
Measurement Mode Name
Measurement Chart
Trace(s)
– Up to 4 traces
Marker(s)
– Up to 6 markers
Readout for Active Marker
Limit Line(s)
– Traces out of the specified limits are displayed in red color
Trace Legend
– For "Indoor" display mode
Trace 1
Active Marker
for each trace
C
Captured Trace
Trace 2
W
Current Trace (Clear Write)
Trace 3
L
Loaded Trace
Trace 4
F
Trace Off
Measurement Setting Information
Screen Menu and Screen Keys
Preparing for a measurement
Selecting measurement mode
Procedure
1
Press the
MODE
hard key and then select the
Single Layout
tab.
2
Double-tap the
DTF VSWR
or
DTF Return Loss
icon as needed.
NOTE
You can choose two measurement modes from each window in the
Horizontal Layout
or
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.