Nokia 6111 RM-82 Service Manual page 200

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After this adjustment is done, the carrier (marker 2) should be at least 40dB below the lower side band
(marker 1).
6. Use the 'Amplitude difference' and the 'Phase difference' buttons in the
the upper side band (marker 3) to a minimum.
Now, marker 3 should also be at least 40dB below marker 1.
At this point, the spectrum analyzer screen should look similar to that of the figure below.
Figure 113 Spectrum analyzer screen shot when performing IQ tuning, part 2
7. After reducing the amplitude of the frequency components at marker 2 and 3 to a minimum, press
Save & Continue.
The EGSM tuning has now been completed.
Next action
Now, using the spectrum analyzer settings listed in Table "Spectrum analyzer settings" and the RF control
settings listed in Table "RF Control window settings", follow exactly the same procedure to perform IQ tuning
in the remaining bands.
Page 8 –22
COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All rights reserved.
RF troubleshooting
TX IQ Tuning window to adjust
RM-82
Issue 1

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