3GPP Base Station Measurements (Option K72) R&S FSL
1300.2519.12 2.114 E-11
Signal generator settings (e.g. R&S SMU):
Frequency: 2.1175 GHz
Level: 0 dBm
Standard: WCDMA/3GPP
Test model: 1, 32 DPCH channels
Procedure:
1. Set the R&S FSL to its default state.
Press the PRESET key.
The R&S FSL is set to its default state.
2. Change into the 3G FDD BTS mode.
Press the MODE key and activate the 3G FDD BTS option.
3. Set the center frequency to 2.1175 GHz.
Press the FREQ key.
The frequency menu is displayed.
In the dialog box, enter 2.1175 using the numeric keypad and confirm with the GHz key.
4. Adjust the reference level and scrambling code.
Press the MEAS key.
The measurement menu is displayed.
Press the Auto Level & Code softkey.
The firmware adjusts the reference level and then searches the scrambling code automatically.
5. Select the Code Domain Power measurement.
Press the MEAS key.
Press the Code Dom Power Diagram softkey.
6. Select an external trigger source.
Press the TRIG key.
Press the Trigger Source softkey and select the External option.
The Code Domain Power of signal according to test model 1 with 32 channels is displayed.
The repetition rate of the measurement increases considerably compared to the repetition rate
of a measurement without an external trigger.
Trigger offset
A delay of the trigger event referenced to the start of the 3GPP FDD frame can be compensated by
modifying the trigger offset.
1. Press the TRIG key.
2. Press the Trigger Offset softkey and enter 100 using the numeric keypad and confirm with the µs
key.
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