Nokia 2125 Troubleshooting Manual page 32

2125/2125i/2126/2126i/2128i (RH-71)
RF Description and Troubleshooting
Use the following steps to set up a CW signal:
1. On the Phone Control dialog box, click the LOCAL button in the Phone State
area to put the mobile terminal into Local Mode.
2. Click the Execute button.
3. Open the Troubleshooting menu, point to AMPS, and click AMPS Control.
The AMPS Control dialog box appears.
4. Click the Tx Control tab, and type the following values:
Channel = 384
•
Power Level = 5
•
Select the Transmitter On option.
•
5. Select the Rx RFI tab, make sure AFC Control is not selected, and click Execute.
6. The next step depends on the type of measurement equipment you are using:
• Spectrum analyzer: Set the center frequency to 836.52 MHz, set the span to
2 MHz, and establish a marker at 836.52 MHz.
• HP8960: Set the callbox System Type to AMPS, set the ACC channel to 384,
and use the Frequency Accuracy measurement to center the VCTCXO
(minimum frequency error).
Page 32
Figure 23: Phone Control dialog box
©2005 Nokia Corporation
Company Confidential ISSUE 1 08/2005