Gsm Rx Chain Activation For Manual Measurements / Gsm Rssi Measurement - Nokia E62 Service Manual

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• Set Rx/Tx channel to 190 on GSM850, 37 on GSM900 band or 700 on GSM1800 band or 661 on GSM1900
(Defaults).
• Set Edge to "Off" (Default). (Not active in RXmode).
• Set Tx PA mode to "Free" (Default). (Not active in RXmode).
• Apply 942.46771 MHz (channel 37 + 67.710 kHz offset), 881.66771MHz (channel 190 + 67.710 kHz),
1842.86771 MHz (channel 700 + 67.710 kHz offset) or 1960.06771 MHz (channel 661 + 67.71 kHz) –
90 dBm signal to the RF-connector (remember to compensate for cable attenuation).

GSM Rx chain activation for manual measurements / GSM RSSI measurement

Context
RSSI signal measurement is the main Rx troubleshooting measurement. The test measures the strength of
the received signal.
Steps
Phoenix service software.
1. Start
2. Choose Testing→GSM→RSSI Reading .
3. Set the RF signal generator for channel frequency +67.771 kHz CW mode with –80 dBm signal.
Alternatively set the cellular tester downlink channel to the appropriate channel. Make sure that the tester
is set to continuous mode, not to burst mode.
Page 7 –10
Figure 46 RF Controls window
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
RF Troubleshooting and Manual Tuning Guide
RM-88
Issue 1