Conducting Rf Measurements; Channel Power - JDS Uniphase CellAdvisor JD700B Series User Manual

Display the input signal's minimum response only
(unlimited or for a certain amount of time)
Capture the selected trace and compare traces
Load a saved trace
Hide the selected trace
Remove all the traces and initialize the trace
settings
NOTE
For the Max Hold and Min Hold, your instrument compares newly acquired data with the
active trace and displays larger maximum values or smaller minimum values on the
screen. You can set it to Unlimited to hold and view maximum or minimum data or
specify a certain amount of time up to 60 seconds by using numeric keys or the rotary
knob.
5
Optional. Press the More (1/2) > Trace Info soft key, and then select the trace number to view
the trace's parameter setting information stored at the time of the measurement or None to hide
the information display.
6
Optional. If you have the two traces T1 and T2, you can perform trace math. To view the power
difference between the traces, press the T1 – T2 -> T5 or T2 – T1 -> T6 soft key.
The result is overlaid on the screen along with the second Y-axis.

Conducting RF measurements

Channel power

The Channel Power measurement determines the average power of an RF signal burst at or above a
specified threshold value.
The purpose of the Channel Power measurement is to determine the power delivered to the antenna
system on the RF channel under test. The instrument acquires a TD-SCDMA signal in the time domain.
The average power level above the threshold is then computed and displayed.
Setting measure setup
After configuring test parameters as described in the "Configuring test parameters" on page 375, you
can continue your measurement.
Procedure
1
Press the MEASURE SETUP hot key.
2
Press the Slot Number soft key, and then select the time slot number to be displayed: TS0, TS1,
TS2, TS3, TS4, TS5, or TS6.
3
Optional. To set the delay, complete the following steps:
a Press the Delay soft key to set the amount of delay in µs.
b Enter a value by using the numeric keys. You can also use the rotary knob.
c Press the µs soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
JD700B Series User's Guide
Chapter 12 Using TD-SCDMA Signal Analyzer
Min Hold m
Capture C
More (1/2) > Load L
Trace View > Off F
More (1/2) > Trace
Clear All
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