![JDS Uniphase CellAdvisor JD780A Series User Manual Download Page 133](http://html1.mh-extra.com/html/jds-uniphase/celladvisor-jd780a-series/celladvisor-jd780a-series_user-manual_3602616133.webp)
JD780A Series Analyzers
Using GSM/GPRS/EDGE Signal Analyzer
133
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 JD780A 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 125, 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:
a.
Press the
Miscellaneous
soft key.
b.
Press the
Delay
soft key to set the amount of delay in µs.
c.
Enter a value by using the numeric keys. You can also use the rotary knob.
d.
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
Figure 42
SEM measurement with GSM signal analyzer
Summary of Contents for CellAdvisor JD780A Series
Page 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Page 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
Page 525: ......
Page 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...