
Figure 133 RX band filter response compensation for EGSM900
vi Press OK to proceed to the next step.
Results
After completing the steps you have calibrated the phone at 9 frequencies.
Next action
Test will be repeated for other bands.
Calibrating RX Channel Select Filter
Context
This calibration is for the baseband filter inside Helgo ASIC. The calibration is done by internally measuring a
prototype filter. For this reason, the calibration is done only once, not separately for 3 bands.
This tuning doesn’t require RF input from an external signal generator.
Steps
1. Select Tuning -> RX Channel Select Filter Calibration
RM-51
Nokia Customer Care
RF troubleshooting
Page 7–20
Company Confidential
9238460 (Issue 1)
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