Nokia 6225 サービスマニュアル
CCS Technical Documentation
Troubleshooting - RF (Part 1)
RH-27
Issue 1 11/2003 Confidential ©
2003 Nokia Corporation
Page 21
2dB. Vary the sector power from -25dBm to -104dBm for accuracy. If the RSSI reading is
off (e.g., 20dB), start the Local Mode troubleshooting.
off (e.g., 20dB), start the Local Mode troubleshooting.
LNA Switching (High/Low Gain State)
When in a call, you can verify at what point the LNA is turned ON (High Gain State) by
using the Phoenix RF AGC component. The indicator for the LNA will turn red when it is
turned ON. Usually, the LNA turns ON in between -93dBm and -95dBm. If the LNA does
not turn off at all in the RF AGC window while in a phone call, you will have bad sensi-
tivity.
using the Phoenix RF AGC component. The indicator for the LNA will turn red when it is
turned ON. Usually, the LNA turns ON in between -93dBm and -95dBm. If the LNA does
not turn off at all in the RF AGC window while in a phone call, you will have bad sensi-
tivity.