User Guide

NSM–5
Service Software Instructions
PAMS Technical Documentation
Page 85
Issue 1 02/2002
 Nokia Corporation
Tuning Steps
IMPORTANT: It is recommended to use adapter RAF–5 with JBU–6
when the phone is tuned because of the galvanic (direct) connection to
the phone.
1. RX Filter Calibration
BB–filter tuning is fully internal operation. External signal generators etc. are
not needed, only command for phone to execute filter calibration procedure.
NOTE: RX Filter Calibration is needed when N505 has been changed.
2. RX Calibration (AGC + AFC)
Procedure
Follow the steps described in chapter ”Service Software Instructions” sec-
tion ”RX calibration... command”.
The measurement is done in five steps: 1. User is requested to put signal
generator to high input level (read from .INI file).