![JDS Uniphase CellAdvisor JD780A Series User Manual Download Page 65](http://html1.mh-extra.com/html/jds-uniphase/celladvisor-jd780a-series/celladvisor-jd780a-series_user-manual_3602616065.webp)
JD780A Series Analyzers
Using Spectrum Analyzer
65
NOTE
This setting is not used in the Spurious Emissions mode.
Sweep mode
The default settings of the sweep mode are
Continue
and
Normal
to sweep continuously at a normal
speed for most on-going measurements. If you want to hold the measurement or get a single sweep,
you can change the sweep mode.
Procedure
To select the single sweep mode:
1.
Press the
SWEEP
hot key.
2.
Toggle the
Sweep Mode
soft key and select
Single
. You can also use the
HOLD
hot key.
The letter
HOLD
in red appears and the sweeping is paused.
3.
Optional
. Press the
Sweep Once
soft key to get a new measurement.
4.
Optional
. To speed up sweeping, press the
Sweep Mode
soft key and then select
Fast
.
NOTE
Selecting
Sweep Mode > Fast
may reduce the measurement accuracy, but it is useful to
identify the existence of interfering signals.
To return to the continuous sweep mode:
1.
Toggle the
Sweep Mode
soft key and select
Continue
. You can also use the
HOLD
hot key.
The letter
HOLD
in red disappears and the sweeping resumes.
NOTE
This setting is not used in the in the Field Strength mode, the AM/FM Audio Demodulation
mode, and the Route Map mode.
Gated sweep
You can configure the gated sweep settings with an internal or external trigger source. If you select
Gated Sweep Settings
, you can view the signal in time domain.
Procedure
1.
Press the
SWEEP
hot key.
2.
Press the
Gated Sweep Settings
soft key.
3.
Optional
. Adjust sweep time to allow enough time for a cycle by completing the following steps:
a.
Press the
Zero Span Time
soft key.
b.
Enter a value by using the numeric keys.
c.
Select the unit:
Sec
,
mSec
, or
µSec
.
4.
Set the period, if using the internal trigger source, by doing one of the following:
–
To select the preset period, complete the following steps:
a.
Toggle the
Period
soft key and select
StdSignal
.
b.
Press the
StdSignal
soft key, and then select the period:
GSM (4.615 ms)
,
WCDMA
(10 ms)
,
LTE (10 ms)
,
EV-DO (5 ms)
,
TD-SCDMA (5 ms)
, or
WiMAX (10 ms)
.
–
To manually set the period, complete the following steps:
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...