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JD780A Series Analyzers
100
Using Interference Analyzer
3.
Enter a value between 1 Hz to 3 MHz in 1-3 sequence by using the numeric keys.
4.
Select the unit:
MHz
,
kHz
, or
Hz
.
The RBW setting automatically changes to
Manual
.
5.
Press the
VBW
soft key.
6.
Enter a value by using the numeric keys.
7.
Select the unit:
MHz
,
kHz
, or
Hz
.
The VBW setting automatically changes to
Manual
.
The RBW or VBW value on the screen changes accordingly.
Table 11
VBW/RBW ratio example
RBW
Ratio (VBW/RBW)
VBW
30 kHz
1:1
30 kHz
1:0.3
10 kHz
1:0.1
3 kHz
1:0.03
1 kHz
1:0.01
300 Hz
1:0.003
100 Hz
Setting average
You can set the number of measurements to be averaged for the trace presentation. A maximum of
100 times of averaging can be set. When the averaging reaches to your setting, a new measurement
value replaces the measurement value in sequence from the earliest.
Procedure
1.
Press the
BW/AVG
hard key.
2.
Press the
Average
soft key.
3.
Enter a value between 1 and 100 as needed by using the numeric keys.
4.
Press the
Enter
soft key.
Setting sweep
The
SWEEP
hot key is used to set and control the sweep time, sweep mode, gated sweep settings,
and gated sweep on or off. This key is not available in the Dual Spectrum and Radar Chart modes.
Sweep time
You can set the sweep time automatically or manually. Manual setting allows you to set the sweep time
beyond an automatic setting.
Procedure
1.
Press the
SWEEP
hot key.
2.
Select the sweep time option, from the following choices:
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...
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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...
Страница 525: ......
Страница 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...