Checking Antenna Functionality - Nokia 6120 classic Service Manual

RM-243
RF troubleshooting

Checking antenna functionality

Antenna overview
The RM-243 has a main GSM+WCDMA antenna and a BT antenna.
The main antenna assembly consists of an antenna foil and an antenna frame. There is one feed, two main
GND and one extra GND contact on the antenna frame.
The BT antenna assembly consists of a BT frame and a BT flex.
Main antenna functionality
The main GSM+WCDMA antenna is functioning normally when the feed and GND contacts take proper contact
to the PWB's C-clips, and the antenna foil is visually intact in the antenna frame.
The main antenna functionality must also be checked by measuring the transmitted power with RF coupler
at GSM900 channel 124.
Figure 23 Main antenna components
Issue 1 COMPANY CONFIDENTIAL Page 4 –25
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