User Guide

Self test troubleshooting

Troubleshooting flow

Receiver troubleshooting

Introduction to receiver (RX) troubleshooting

RX can be tested by making a phone call or in local mode. For the local mode testing, use Phoenix service

software.

The main RX troubleshooting measurement is RSSI reading. This test measures the signal strength of the

received signal. For GSM RSSI measurements, see

GSM RX chain activation for manual measurements/GSM

RSSI measurement

. For a similar test in WCDMA mode, see

WCDMA RSSI measurement

GSM RX chain activation for manual measurements/GSM RSSI measurement

Prerequisites

Make the following settings in Phoenix service software:

Setting GSM900 GSM1800 GSM1900

Phoenix Channel 37 700 661

Signal generator to

antenna connector

942.46771MHz

(67.71kHz offset) at

-60dBm

1842.86771MHz

(67.71kHz offset) at

-60dBm

1960.046771MHz

(67.71kHz offset) at

-60dBm

Steps

1. Set the phone to local mode.

2. Activate RSSI reading in Phoenix (Testing→GSM→RSSI reading )

RA-6

RF troubleshooting

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