Chapter 5
Using Interference Analyzer
122
JD700B Series User’s Guide
Interference ID
The Interference ID automatically classifies interfering signals over a designated spectrum and displays the
list of possible signal types corresponding to the selected signal. This functionality is not available when the
28 GHz downconverter is in operation.
Procedure
1
Configure test parameters as described in the “Configuring test parameters” on page 112.
2
Press the
MEASURE SETUP
hot key.
3
Toggle the
Interference ID
soft key between
On
and
Off
to turn the Interference ID on and off.
4
To set the threshold level manually, complete the following steps:
Press the
Threshold
soft key.
Enter a value by using the numeric keys.
Press the
dBm
soft key.
5
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 35 for more information.
NOTE
You can use the
LIMIT
hot key to analyze your measurements with the display line, multi-
segment line, and channel limit. See “Setting limit for interference analyzer” on page 134
for more information.
Conducting interference measurements
Spectrogram
The Spectrogram is particularly useful when attempting to identify periodic or intermittent signals as it
captures spectrum activity over time and uses various colors to differentiate spectrum power levels. When
the directional antenna is used to receive the signal, you will see a change in the amplitude of the tracked
signal as you change the direction of the antenna and see a change in the Spectrogram colors. The source
of the signal is located in the direction that results in the highest signal strength.
Setting measure setup
Procedure
1
Configure test parameters as described in the “Configuring test parameters” on page 112.
2
Press the
MEASURE SETUP
hot key.
3
To set the amount of time between each trace measurement:
Press the
Time Interval
soft key.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the
Sec
soft key.
4
To set the time cursor on a specific trace position, complete the following steps:
Toggle the
Time Cursor
soft key and select
On
.
Press the
Position
soft key.
Turn the rotary knob to move the time cursor. You can also enter a value and then press the
Enter
soft key.
NOTE
Enabling the time cursor puts the measurement on hold and you can make post-
processing analysis for each measurement over time using the time cursor.
5
To start a new measurement, press the
Reset/Restart
soft key.
Содержание CellAdvisor JD700B Series
Страница 2: ...CellAdvisorTM JD700B Series FW3 120 User s Guide ...
Страница 105: ...Chapter 4 Using Spectrum Analyzer 104 JD700B Series User s Guide Figure 44 PIM detection for multiple carriers ...
Страница 406: ...Chapter 11 Using EV DO Signal Analyzer JD700B Series User s Guide 405 3 Pilot 4 MAC 64 5 MAC 128 ...
Страница 734: ...Chapter 18 Perfroming BBU Emulation JD700B Series User s Guide 733 Figure 441 Example of verification of link status ...
Страница 763: ...Chapter 21 Performing Fiber Inspection 762 JD700B Series User s Guide Figure 461 Fiber inspection report ...
Страница 808: ...Appendix JD700B Series User s Guide 807 JD740B series ...
Страница 811: ...Appendix 810 JD700B Series User s Guide Figure 470 Append keywords window ...