Chapter 4
Using Spectrum Analyzer
102
JD700B Series User’s Guide
Dual spectrum
The Dual Spectrum feature lets you view two spectrum measurements, both the Uplink and Downlink
spectrum, simultaneously eliminating the need to swap between two screens back and forth.
Setting measure setup
Procedure
1
Configure test parameters as described in the “Configuring test parameters” on page 68.
2
Press the
MEASURE SETUP
hot key.
3
Toggle the
Active Window
soft key between
Top
and
Bottom
to select the measurement
window to configure or work on. You can also tap on the top or bottom chart on the screen.
Measurement example
Figure 42 Dual spectrum measurement with spectrum analyzer
PIM detection (single and multiple carriers)
The Passive Intermodulation (PIM) Detection allows you to detect Uplink PIM across the full spectrum for
any technology. When PIM is detected, the normal repair mode is to replace the offending cable and what
you need to do is replacing the whole cable irrespective of the location of the fault. Note that this
functionality is not supported when the 28 GHz downconverter is in operation.
Setting measure setup
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Connect cables as instructed on the screen.
3
Optional
. To check any possibility of PIM existence in red color by calculation, complete the
following steps:
Press the
Calculated PIM
soft key.
Press the
Radio Band
soft key for single carrier.
There are
Radio 1 Band
and
Radio 2 Band
soft keys for multiple carriers.
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 ...