Chapter 6
Using GSM/GPRS/EDGE Signal Analyzer
JD700B Series User’s Guide
149
Conducting spectrum measurements
If you have configured test parameters as described in the “Configuring test parameters” on page 145, your
measurement result is displayed on the screen as like the following example, Figure 69.
Figure 69 Spectrum measurement screen with GSM signal analyzer
Setting measure setup
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Press the
Time Slot
soft key to assign a time slot with which performs RF measurements, and
then select your desired time slot number from
0
to
7
.
3
Optional
. To set the delay, complete the following steps:
Press the
Miscellaneous
soft key.
Press the
Delay
soft key to set the amount of delay in µs.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the
µs
soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
Setting trace
You can display up to six traces on the measurement chart simultaneously.
Procedure
1
Press the
TRACE/DISPLAY
hard key.
2
Press the
Select Trace
soft key, and then select the trace number:
T1
,
T2
,
T3
,
T4
,
T5
, or
T6
.
The legend shape of the selected trace changes from square to round to indicate that the trace is
the active one now.
3
Do one of the following: