User Guide

WCDMA RSSI measurement

Prerequisites

WCDMA RX must be activated before RSSI can be measured. For instructions, please refer to WCDMA RX chain

activation (page 4–8).

Steps

1. From the Phoenix testing menu, select WCDMA→RX Power measurement

2. In the RX Power measurement window, select:

• Mode: RSSI

• Continuous mode

3. Click Start to perform the measurement.

Transmitter troubleshooting

General instructions for transmitter (TX) troubleshooting

Please note the following before performing transmitter tests:

• TX troubleshooting requires TX operation.

• Do not transmit on frequencies that are in use!

• The transmitter can be controlled in local mode for diagnostic purposes.

• The most useful Phoenix tool for GSM transmitter testing is “RF Controls”; in WCDMA transmitter testing

the best tool is “TX Control”.

• Remember that re-tuning is not a fix! Phones are tuned correctly in production

Note: Never activate the GSM or WCDMA transmitter without a proper antenna load. Always connect

a 50 Ω load to the RF connector (antenna, RF-measurement equipment or at least a 2 W dummy

load); otherwise the GSM or WCDMA Power amplifier (PA) may be damaged.

GSM transmitter troubleshooting

Steps

1. Set the phone to local mode.

2. Activate RF controls in Phoenix (Testing→GSM→Rf Controls ).

Use the following settings:

RM-244

RF troubleshooting

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