Chapter 14
Using NB-IoT Signal Analyzer
JD700B Series User’s Guide
517
Occupied bandwidth
Occupied BW
High Limit
Spectrum emission mask
Spectrum Emission Mask
(On/Off only)
Spurious emissions
Spurious Emissions
(On/Off only)
4
Optional
. You can enable alarm sound that goes off if the measurement falls outside of the limit.
Toggle the
Beep
soft key between
On
and
Off
to enable or disable the beep sound.
5
Optional
. Go to
SAVE/LOAD > Save
, and then select
Limit
to save the limit settings.
See “Using save” on page 35 for more information.
Conducting NB-IoT standalone modulation analysis
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 502, you can
continue your measurement.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Toggle the
Measure Type
soft key and select
Frame
or
Subframe
.
NOTE
You can use
Subframe No
soft key only if you toggle the
Measure Type
soft key and
select
Subframe
.
3
To select
Subframe No
do the following steps:
Press the
Subframe No
soft key.
Enter a value from 0 to 9 by using the numeric keys. You can also use the rotary knob.
Press the
Enter
soft key.
4
To measure the I-Q diagram by each channel shown on the screen, complete the following steps:
Press the
MARKER
hard key.
Toggle the
Marker View
soft key and select
On
.
Press the
Channel
and then turn the rotary knob.
Your measurement result is displayed on the screen as like the following examples.