Nokia RH-57 Series Troubleshooting Manual page 36

2112 (RH-57)
Troubleshooting - RF
11. Adjust the AFC value to center the VCTCXO on the RF PDM dialog box. The
tuning range is approximately +/- 10kHz.
12. Adjust the AFC value so that the output signal is within +/- 100Hz. If you are
using an HP4406 or a spectrum analyzer, narrow the span to 1kHz or less.
Page 36
Figure 26: Manually adjusting the AFC to center VCTCXO
©2004 Nokia Corporation
Nokia Customer Care
Company Confidential Issue 1 07/2004