User Guide

Figure 23 Typical readings

4. Change the power level (RF controls) and make sure the power reading follows accordingly.

Next actions

You can troubleshoot the GSM transmitter for each GSM band separately, one band at a time. If you want to

troubleshoot GSM850, GSM1800 or GSM1900, change the band with the RF controls and set the

communication analyser accordingly.

Checking antenna functionality

Antenna overview

The main antenna has one antenna element (GSM and WCDMA).

In the GSM/WCDMA antenna there is one feed and two ground contacts.There is also one feed for active

antenna tuning circuit.

The BT/WLAN antenna is a discreet component on PWB.

RM-244

RF troubleshooting

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