User Guide

System mode independent manual tunings

RF channel filter calibration

Context

Rf channel filter calibration tunes the internal low pass filters of the RF ASIC, that limit the bandwidth of BB

IQ signals.

Table 13 Rf channel filter calibration tuning limits

Min Typ Max

Tx filter 0 10 31

RX mixer 0 13 31

Rx filter 0 16 31

Steps

1. From the Operating mode drop-down menu, set mode to Local.

2. Choose Tuning→Rf Channel Filter Calibration .

3. Click Tune.

4. To save the values to the PMM (Phone Permanent Memory) area, click Write.

5. To close the

Rf Channel Filter Calibration

window, click Close.

Results

Figure 28 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 .

RM-244

RF troubleshooting

Issue 1 COMPANY CONFIDENTIAL Page 4 –17