User Guide

NSB-5
Service Software PAMS Technical Documentation
Page 36 Nokia Mobile Phones Ltd. Issue 1 03/01
Save button (ALT+S):
Dialog is closed and tuning is saved to phone.
Cancel button (ESC):
Dialog is closed and tuning is not saved to phone.
When calibration has ended, the DAC value checking is done and, if it is not successful,
an error message is shown.
When exit is made, the next selections are set to the values which were selected before
this adjustment.
Operation Mode
Update RF Information window
The exit and the use of AGC control values is done same way as exit from power level
tuning and power coefficient use.
Tx Power... command
An antenna cable, a GSM/PCS signal tester, and either a Pulse Power Meter or a spectrum
analyzer along with a 10dB attenuator is needed for the tuning. If the tuning is per-
formed with an external voltage source, it shall be set to 3.6 V.
Select PCS band on the GSM/PCS signal tester or GSM/PCS Power Meter. Select the GSM
band in WinTesla (under Product, Band menu).
Compensate for antenna cable loss on the GSM/PCS signal tester or GSM/PCS Power
Meter. Typical values for a standard RF cable is 0.8 to 1.0 dB of loss.
Select measurement of average burst power on the GSM/PCS signal tester or GSM/PCS
Power Meter.
Select the menu Testing, RF Controls.
Set: TX as the Active unit; TX Data Type: Random
Select the menu Tuning, Tx Power.
Select power level 15. Adjust the signal to 0 dBm (according to GSM specifications)
Select power level 8. Adjust the signal to 14 dBm (according to GSM specifications)
Select power level 7. Adjust the signal to 16 dBm (according to GSM specifications)
Select power level 0. Adjust the signal to 29.75 dBm (according to GSM specifications)
Select Calculate to make WinTesla find the rest of the power level values.
NOTE: Calculated values can be checked after the calculation and fine tuned if needed
in the same manner as previous power level tunings.
Save the TX power levels in the phone by pressing the Save button.