User Guide

7. Set the tuning targets according to the values in the table below

GMSK 1 slot 2 slot 3 slot

850 31.5 30 28.5

900 32.5 30 28.2

1800 29.5 29.5 28.2

1900 29.5 29.5 28.2

EDGE 1 slot 2 slot 3 slot

850 26.5 26.5 25.2

900 26.5 26.5 25.2

1800 25 25 24.2

1900 25 25 24.2

WCDMA Band I 23.5 dBm

WCDMA Band V 21.5 dBm

8. Adjust power for all bold power levels to correspond the Target dBm column by pressing + or – keys.

9. If all bold power levels are adjusted, click Next to continue with GSM850 EDGE.

10. Adjust power for all bold power levels to correspond the Target dBm column by pressing + or – keys.

Next actions

Continue tuning the bold power levels of the GSM900, GSM1800 and GSM1900 bands. You will see this

message, if finished successfully:

WCDMA receiver tunings

RX calibration (WCDMA)

Context

Rx calibration tuning routine calculates the real gain values of the WCDMA Rx AGC system. There is also a SAW

filter between front end LNA and mixer in the receive chain, which causes ripple in the RSSI measurement,

this is calibrated out. The SAW filter is intergated into RF ASIC N7505.

RM-244

RF troubleshooting

Issue 1 COMPANY CONFIDENTIAL Page 4 –27