User Guide

Nokia Customer Care RF Description and Troubleshooting
2115i/2116/2116i (RH-66)
Issue 1 03/2005 ©2005 Nokia Corporation Company Confidential Page 33
7. Use RF PDM to adjust the AFC to center the VCTCXO. The tuning range is
approximately +/- 10kHz. Adjust the AFC so that the output signal is within
+/-150Hz. If using the spectrum analyzer, narrow the span to 1 kHz or less.
Figure 24: RF PDM dialog box
8. If the VCTCXO does not tune, replace the UEMC.
Figure 25: Tx output for Cell channel 384 at 25C
Adjust AFC to
center VCTCXO
manually