Chapter 6
Using GSM/GPRS/EDGE Signal Analyzer
152
JD700B Series User’s Guide
Press the
µs
soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
Measurement example
The Occupied Bandwidth measurement shows both of power across the band and power bandwidth in a
user specified percentage to determine the amount of spectrum used by a modulated signal. Occupied
bandwidth is typically calculated as the bandwidth containing 99% of the transmitted power.
Figure 71 Occupied bandwidth measurement with GSM signal analyzer
NOTE
You can use the
LIMIT
hot key to analyze your measurements with the user-definable
limit and Pass/Fail indication. See “Setting limit for RF tests” on page 155 for more
information.
Spectrum emission mask (SEM)
The Spectrum Emission Mask (SEM) measurement is to identify and determine the power level of out-of-
band spurious emission outside the necessary channel bandwidth and modulated signal. It measures the
power ratio between in-band and adjacent channels. The JD700B series indicates either Pass or Fail based
on the specified limit of the signal.
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 145, you can
continue your measurement.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Press the
Time Slot
soft key to assign a time slot with which performs measurements, and then
select your desired time slot number from
0
to
7
.
3
Optional
. To set the delay, complete the following steps:
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 ...