Nokia 3600, 3620 Service Manual

NHM-10

Company Confidential

3 - Service Software

CCS Technical Documentation

Page 3-38

         Copyright  2004 Nokia Corporation

Issue 2 01/2004

Company Confidential

The Spectrum Analyzer now shows a plot like this:

Select

‘Save to Product’

Press Stop in the TX IQ Tuning Window and the values are stored in the phone.

The GSM1900 TX IQ Tuning is now finished.

Note: The optimal values for “TX I and Q Offset” and “Amplitude and Phase Difference” vary 

from phone to phone.

This tuning must be done in both bands.

Note:  TX Power tuning must be done with a peak power meter, e.g. Anritsu model ML2408A 

with Anritsu Peak Power Sensor MA2442A and a suitable attenuator.

Ref Lvl

 35 dBm

Ref Lvl

 35 dBm

RBW

 3 kHz

VBW

 3 kHz

SWT

 3 s

RF Att

 30 dB

30 kHz/

Center 1.88 GHz

Span 300 kHz

 27.5 dB Offset

Unit

dBm

  -60

  -50

  -40

  -30

  -20

  -10

    0

   10

   20

   30

  -65

   35

1

2

3

Marker 3 [T1]       

          -27.22 dBm

      1.88006771 GHz

3 [T1]       -27.22 dBm

          1.88006771 GHz

1 [T1]        25.76 dBm

          1.87993229 GHz

2 [T1]       -27.30 dBm

          1.88000000 GHz

Date:      15.JAN.2002  10:58:09