JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

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JD780A Series Analyzers
Using Mobile WiMAX Signal Analyzer
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f. Press the DL Symbols soft key to set the number of downlink symbols.
g. Enter a value by using the numeric keys, and then press the Enter soft key.
h. Press the UL Symbols soft key to set the number of uplink symbols.
i. Enter a value by using the numeric keys, and then press the Enter soft key.
3.
Optional . Press the Miscellaneous soft key, and then do the following as needed:
–
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.
4.
Optional . Go to SAVE/LOAD > Save , and then select the save option from the choices available
for your measurement mode. See
“Using save” on page 31 for more information.
Measurement example
Figure 242 Multipath profile measurement with Mobile WiMAX OTA signal analyzer
Preamble power trend
The Preamble Power Trend shows power variations of a strongest preamble signal over time along
with the relative power trend compare to total preamble power. Searching preamble index can be set
auto to detect strongest or manual to search specific preamble. Positioning information, latitude, and
longitude will be displayed if a GPS antenna is supplied and locked to the GPS satellites on the bottom
of the screen.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 456, you
can continue your measurement.