Gps Rf General Testing - Nokia RH-66 Troubleshooting Manual

Nokia Customer Care

GPS RF General Testing

In radiated testing the CW level has to be higher because of the attenuation in
pad + cable + coupler. With a -20 dB pad, the signal level in the signal generator is
~ -110 dBm + cable attenuation + 20 dB + 18 dB. The CW analysis allows end-to-end
spectral purity to be assessed during manufacturing and development.
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. Inject a -110 dBm tone at 1575.52 MHz at the GPS connector (X6250) with a
signal generator or a call box.
Issue 1 03/2005
Figure 35: Phone Control dialog box
CW tone
Figure 36: GPS antenna port
©2005 Nokia Corporation
2115i/2116/2116i (RH-66)
RF Description and Troubleshooting
Company Confidential Page 45