5. When the values have been written to the phone memory, click the Finish button to end the tuning.
6. Change band to GSM850 and repeat steps 4 to 5.
7. Change band to GSM1800 and repeat steps 4 to 5.
8. Change band to GSM1900 and repeat steps 4 to 5.
9. To close the tuning window, click Close.
Next actions
Tuning sliders should be close to the center of the scale after the tuning and within the limits specified in
the table below. If they are not within the limits, check Tx IQ quality manually.
Min Typ Max Unit
GSM850
I DC offset / Q DC
offset
-6 -4 6 %
Ampl -1 0 1 dB
Phase 85 90 95
○
GSM900
RM-88
RF Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –31
Copyright © 2006 Nokia. All rights reserved.