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9.7. Rxlev Calibration
Rxlev Gain Calibration
For RX Level calibration, the mobile must be connected to a GSM Test Set, The power into the mobile should be
"-75.5 dBm/High" or "-48.5 dBm/Low" Gain.
1.
Click the "Connection" button.
2.
Click the "Non-Signaling Mode" button.
3.
Input the Rx ARFCN (EGSM=37ch, DCS=670 ch, PCS=650 ch) and press the Enter key.
Note: If the PCS band is being calibrated, the "1900 Band" box must first be checked.
4.
Set RX GAIN to "High" or "Low".
5.
Use the pull-down menu to select the Gain "Rx(1) RX COR = 0 dB".
6.
Check the "Burst Rx" of the RF Mode.
7.
Click the "Get" Button of Rx IQRMS. The value displayed at "Slot1" will be the "IQRMS value".
8.
Enter the IQRMS value into the RX Excel sheet (below). The IQRMS value will be used to calculate the gain and channel
compensation values. It will then stored to the eep file of the RX Excel sheet.
9.
Repeat steps 1 through 8 for all calibration channels.
10. When all channels and bands are calibrated, save the Excel sheet of eep data using File >>> Save As >>>
Text (Tab delimited) >>> Save.
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