
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
TX IQ Tuning
window to adjust
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.
RM-82
Nokia Customer Care
RF troubleshooting
Page 8 –22
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2005 Nokia. All rights reserved.
Содержание 6111 RM-82
Страница 179: ...8 RF troubleshooting Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 8 1 Copyright 2005 Nokia All rights reserved ...
Страница 211: ...9 System module Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 9 1 Copyright 2005 Nokia All rights reserved ...
Страница 233: ...10 Schematics Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 10 1 Copyright 2005 Nokia All rights reserved ...
Страница 239: ...UI RM 82 Schematics Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 10 7 Copyright 2005 Nokia All rights reserved ...
Страница 248: ...RM 82 Schematics Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 10 16 Copyright 2005 Nokia All rights reserved ...
Страница 249: ...Glossary Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2005 Nokia All rights reserved ...