Chapter 6
Using GSM/GPRS/EDGE Signal Analyzer
154
JD700B Series User’s Guide
Press the
Delay
soft key to set the amount of delay in µs.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the
µs
soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
Measurement example
Figure 73 Output RF spectrum measurement with GSM signal analyzer
NOTE
A set of limit values are applied according to the current channel power and automatically
displayed in the result table. You can use the
LIMIT
hot key to enable or disable the
Pass/Fail indication. See “Setting limit for RF tests” on page 155 for more information.
Spurious emissions
Out-of-band emissions are unwanted emissions immediately outside the channel bandwidth resulting from
the modulation process and non-linearity in the transmitter but excluding spurious emissions. The Spurious
Emissions measurement is to identify and determine the power level of out-of-band spurious emission within
the necessary channel bandwidth and modulated signal measured at the RF port of the Base Station.
Setting measure setup
After configuring test parameters as described in the “Configuring test parameters” on page 145, you can
continue your measurement.
Procedure
1
Press the
MEASURE SETUP
hot key.
2
To set up the range table and parameters, press the
Range Table
soft key and then complete
the following steps:
Press the
Range
soft key, and then select the range number between
1
and
20
to add
as a new or change the existing settings.
Do the following as desired:
Select
Start Frequency
, and then specify the start frequency for the selected range.
