Chapter 14
Using NB-IoT Signal Analyzer
502
JD700B Series User’s Guide
Configuring test parameters
Setting frequency
You can set the frequency with either frequency or channel number. If a frequency to be set matches to the
frequency corresponding to the selected channel standard, the instrument calculates its channel number
and updates the screen with it automatically.
Procedure
To set the center frequency:
1
Press the
FREQ/DIST
hard key.
2
Toggle the
Unit
soft key and select
Freq
.
3
Press the
Center Frequency
soft key.
4
Enter a value by using the numeric keys. You can also use the rotary knob.
5
Select the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
6
Optional
. To define the amount of frequency increment for the rotary knob, complete the following
steps:
Press the
Frequency Step
soft key.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the unit:
GHz
,
MHz
,
kHz
, or
Hz
.
To set the channel number:
1
Press the
FREQ/DIST
hard key.
2
Toggle the
Unit
soft key and select
Channel
.
3
To select the standard channel, complete the following steps:
Press the
Channel Std
soft key. The standard channel window appears.
See “Appendix C – Band, frequency & channel standard” on page 780 for more information.
Highlight the band to be measured by using the rotary knob, the arrow keys, or the
Page
Up/Page Down
soft keys.
Press the
Select
soft key or the rotary knob to confirm the selection.
4
Press the
Channel Number
soft key.
5
Enter a value by using the numeric keys. You can also use the rotary knob.
6
Press the
Enter
soft key.
The instrument automatically displays the corresponding center frequency value for the selected
channel number.
7
Optional
. To define the amount of channel increment for the rotary knob, complete the following
steps:
Press the
Channel Step
soft key.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the
Enter
soft key.
NOTE
This frequency setting is not used in the Spurious Emissions mode.
Setting amplitude
Reference level and attenuation
You can set the reference and attenuation levels automatically or manually to optimize the display of the
traces measured, as you desire.