Chapter 4
Using Spectrum Analyzer
76
JD700B Series User’s Guide
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Press the
RF Source
soft key.
3
To set the frequency of the CW signal to be injected, complete the following steps:
Press the
Frequency
soft key.
Enter a value within the frequency range of your instrument.
–
JD740B
series:
25 MHz
to
4 GHz
–
JD780B
series:
5 MHz
to
6 GHz
Select the unit option from the choices:
GHz
,
MHz
,
kHz
, or
Hz
.
4
To set the output level of the CW signal to be injected, complete following steps:
Press the
Power Level
soft key.
Enter a value within the output range for the frequency you have set.
JD740B
series:
-80 dBm
to
-30 dBm, 0 dBm
JD780B
series:
-60 dBm
to
10 dBm
Press the
Enter
soft key.
5
To start to inject the set signal, toggle the
RF Source
soft key to
On
.
6
To stop injecting the signal, toggle the
RF Source
soft key to
Off
.
Conducting spectrum measurements
If you have configured test parameters as described in the “Configuring test parameters” on page 68, your
measurement is displayed on the screen as like the following example, Figure 18.
Figure 18 Spectrum measurement with spectrum analyzer
