4. Click Start to activate the WCDMA RX. If the settings are changed later on (for example, change of channel)
you have to click Stop and Start again.
Note: Channels for testing: WCDMA I 10700, II 9800, V 4408, VIII 3012.
Note: Clicking Stop also disables TX control if it was active.
WCDMA RSSI measurement
Prerequisites
WCDMA RX must be activated before RSSI can be measured. For instructions, please refer to chapter
WCDMA
RX chain activation for manual measurement
. Connect a signal generator to a proper RF connector on the
phone PWB (note: there are two antenna connectors for cellular RF on the phone PWB, one for low bands
and one for high bands).
Steps
1. Use the following frequencies and RF levels in RF generator for different WCDMA bands:
Setting WCDMA I WCDMA II WCDMA V WCDMA VIII
Phoenix:
Channel
10700 9800 4408 3012
RX frequency 2140.0 MHz 1960.0 MHz 881.6 MHz 942.4 MHz
Signal generator
frequency
2141.0 MHz 1961.0 MHz 882.6 MHz 943.4 MHz
RM-781
Cellular RF troubleshooting
Page 4 – 26 COMPANY CONFIDENTIAL Issue 1
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