Chapter 7
Using WCDMA/HSPA+ Signal Analyzer
198
JD700B Series User’s Guide
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.
NOTE
The Carrier Feed Through is a result of the RF carrier signal feeding through the I/Q
modulator and riding on the output circuitry without being modulated.
Performing auto measurements
The Auto Measure function of the JD700B series allows a complete signal profiling covering RF
characterization and modulation quality parameters of up to 10 different carriers, particularly useful on an
overlay architecture where base stations are transmitting in different frequencies.
The Auto Measure can be easily executed either by selecting a menu in the instrument or by running a
programmed scenario in the PC-based application so that the instrument automatically configure and perform
tests on every aspect of all the carriers.
Setting limit for auto measure
You can set test limits for test item(s) in the auto measurement.
Procedure
1
Press the
LIMIT
hot key.
2
Press the
RF Test Limits
soft key, and then enable test limits as desired.
3
Press the
Modulation Test Limits
soft key, and then enable test limits as desired.
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.
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 173, you can
continue your measurement. The measurement settings can be saved and recalled as a file. You can also
use JDViewer, PC application software to configure a measure setup, save as a file, and load the file on to
the instrument.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
Toggle the
Configuration
soft key and select the configuration option:
Current:
Lets the instrument use current frequency (single carrier) and determine pass or
fail based on the instrument
’
s limit settings in Auto Measure.
Scenario:
Runs a test with a programmed scenario in JDViewer.
The Scenario menu becomes activated.
3
To load a scenario, press the
Scenario
soft key, and then select a scenario file to load.
4
Toggle the
Test Time
soft key and select the test time option:
Now:
Lets the instrument run a test only once.