System mode independent manual tunings
RF channel filter calibration
Context
RF channel filter calibration tunes RF ASIC's internal low pass filters that limit the bandwidth of BB IQ signals.
One common calibration is made for GSM and WCDMA.
Table 16 RF channel filter calibration tuning limits
Min
Typ
Max
Tx filter
0
10
31
Rx filter
0
16
31
Steps
1. From the "Operating mode" dropdown menu, set mode to "Local".
2. From the Tuning menu, choose "RF Channel Filter Calibration".
3. Click Tune.
4. To save the values to the PMM (Permanent Memory) area, click Write.
5. To close the tuning window, click Close.
Results
Figure 56 RF channel filter calibration typical values
PA (power amplifier) detection
Context
The PA detection procedure detects which PA manufacturer is used for phone PAs.
If a PA is changed or if the permanent memory (PMM) data is corrupted, PA detection has to be performed
before Tx tunings.
Steps
1. From the Operating mode drop-down menu, set mode to Local.
2. Choose Tuning
→
PA Detection .
3. Click Tune.
RM-132; RM-133
Nokia Customer Care
RF Troubleshooting and Manual Tuning Guide
Page 7 –28
COMPANY CONFIDENTIAL
Issue 1
Copyright © 2006 Nokia. All rights reserved.