JD700B Series User’s Guide
715
Press the
MEASURE SETUP
hot key.
Press the
More (1/2)
soft key and then the
Time Interval
soft key.
Enter a value, and then press the
Sec
soft key.
6
To set the time cursor on a specific trace position, complete the following steps:
Toggle the
Time Cursor
soft key to
On
.
The Position soft key is activated.
Press the
Position
soft key.
To move the time cursor, turn the rotary or enter a value and then press the
Enter
soft key.
To turn off the time cursor, toggle the
Time Cursor
soft key to
Off
.
NOTE
Enabling the time cursor puts the measurement on hold and you can make post-
processing analysis for each measurement over time using the time cursor.
7
To start a new measurement, press the
Reset/Restart
soft key.
8
To clear current (C) and history (H) status of CPRI alarm on LOS and LOF, press the
MEASURE
SETUP
hot key, the
More (1/2)
soft key, and then the
Clear History
soft key.
Figure 429 Example of spectrogram in Alcatel-Lucent BBU emulation
NOTE
You can use the
LIMIT
hot key to analyze your measurements with the limit line or multi-
segment line. See “Setting limit for spectrum clearance” on page 718 for more information.
Conducting dual spectrogram
The Dual Spectrogram feature lets you observe two spectrograms for different carriers and Tx containers
simultaneously.
Procedure
1
Press the
BBU Emulation > Alcatel-Lucent
soft key.
2
Select
Spectrum Clearance > Dual Spectrogram
.
3
Press the
MEASURE SETUP
hot key.
4
Press the
More (1/2)
soft key.
5
Toggle the
Active Window
soft key between
Left
and
Right
. You can also tap the chart on the
screen.