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It determines the frequency bandwidth that contains 99% of the total radiated power.
Measurement Procedure
Step
1.
Connect the cable
2.
Set the measurement mode
MODE
[Signal Analyzer]
[GSM]
[RF Analysis]
[Occupied BW]
3.
Set the measurement parameters
MEASURE SETUP
[Delay]
Enter a value
[uSec] or ENTER
[RX Filter]
[No Filter], [100K], [200K],
[400K (Default)], or [624K]
MEASURE SETUP
DELAY: Sets the delay in micro seconds. Use the numeric keys to input value and press the unit
soft key to complete the input.
RX FILTER: Sets the internal RX filter bandwidth among 100K, 200K, 400K, and 624K. Default
setting is 400K.
Setting Limit
LIMIT
This hot key is used to set the threshold value for the limit line on the display screen. It turns on or off
the limit or band limit settings of the measurement for pass/fail indication. The user input window must
Description
Connect the cable to the Spectrum Analyzer RF In 50Ω
port of the JD7105B and the RF Output port of BTS.
Press the MODE hard key.
Press the soft key to select the Signal Analyzer mode.
Press the GSM soft key.
Press the RF Analysis soft key.
Press the Occupied BW soft key.
Press the MEASURE SETUP hard key.
Press the Delay soft key to set the delay.
Use the numeric keys to input value.
Press the unit soft key or the ENTER hard key.
Press the RX Filter soft key to select the internal RX filter
bandwidth among the choices.
GSM Occupied BW Measurement Procedure
25
JD7105B Base Station Analyzer
O
B
CCUPIED
ANDWIDTH
GSM/GPRS/EDGE SIGNAL ANALYZER
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