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JD780A Series Analyzers
198
Using LTE - FDD Signal Analyzer
Configuring test parameters
Setting frequency
You can set the frequency with either frequency or channel number. If a frequency to be set matches
to the frequency corresponding to the selected channel standard, the instrument calculates its channel
number and updates the screen with it automatically.
Procedure
To set the center frequency:
1.
Press the
FREQ/DIST
hard key.
2.
Toggle the
Unit
soft key and select
Freq
.
3.
Press the
Center Frequency
soft key.
4.
Enter a value by using the numeric keys. You can also use the rotary knob.
5.
Select the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
6.
Optional
. To define the amount of frequency increment for the rotary knob, complete the following
steps:
a.
Press the
Frequency Step
soft key.
b.
Enter a value by using the numeric keys. You can also use the rotary knob.
c.
Press the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
To set the channel number:
1.
Press the
FREQ/DIST
hard key.
2.
Toggle the
Unit
soft key and select
Channel
.
NOTE
Selecting
Channel
sets the standard channel to
Band Global
automatically so that you
can set the
Channel Number
without choosing a standard channel band from the list.
3.
Press the
Channel Number
soft key.
4.
Enter a value by using the numeric keys. You can also use the rotary knob.
5.
Press the
Enter
soft key.
The instrument automatically displays the corresponding center frequency value for the selected
channel number.
6.
Optional
. To define the amount of channel increment for the rotary knob, complete the following
steps:
a.
Press the
Channel Step
soft key.
b.
Enter a value by using the numeric keys. You can also use the rotary knob.
c.
Press the
Enter
soft key.
NOTE
This frequency setting is not used in the Multi-ACLR and Spurious Emissions modes.
Setting amplitude
Reference level and attenuation
You can set the reference and attenuation levels automatically or manually to optimize the display of
the traces measured, as you desire.
Содержание CellAdvisor JD780A Series
Страница 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Страница 91: ...JD780A Series Analyzers Using Spectrum Analyzer 91 Figure 23 PIM detection for multiple carriers...
Страница 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Страница 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Страница 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
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Страница 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...