Wcdma Rssi Measurement; Transmitter Troubleshooting; General Instructions For Transmitter (Tx) Troubleshooting - Nokia n81 Service Manual

WCDMA RSSI measurement

Prerequisites
WCDMA RX must be activated before RSSI can be measured. For instructions, please refer to
activation (page 4–19).
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
Page 4 –20
Figure 33 WCDMA RX generator settings
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RM-179; RM-223
RF troubleshooting
WCDMA RX chain
Issue 1