Nokia NSB-7 Series Service Manual page 148

NSB-7
Service Software Instructions
Dialog mode: modal
TX I/Q Tuning has following items:
Tune TX I DC Offset scroll bar (ALT+I):
The DC Offset is shown as percents (%) from the + maximum value. 0% means that
there is no DC. The value range is -100%...100%. The value is rounded to the nearest
integer value.
Tune TX Q DC Offset scroll bar (ALT+Q):
The operation of this function is the same as one above, except with this selection the
Q branch DC Offset is tuned. The value range is -100%...100%. The value is rounded
to the nearest integer value.
Tune Amplitude Difference scroll bar (ALT+A):
When this selection is made user can increase or decrease the amplitude difference
within 0.1 dB steps. The value range is -1...1.
Tune Phase Difference scroll bar (ALT+P):
When this selection is made user can increase or decrease the phase difference within
0.55 steps. The current phase difference is shown on the tuning window with
numbers and bar figure. The value range is 85...95.
Save/OK button (ENTER):
Dialog is closed and tuning is saved to phone. When tuning phone in GSM 1900 band
values are only saved to PC memory.
Cancel button (ESC):
Dialog is closed and tuning is not saved to phone.
After each value change the new value is sent to the phone.
The next automatic selection is made when TX I / Q tuning function is ended:
• Operation Mode = RX pulsed
• Update RF Information window
Page 42 ãNokia Mobile Phones Ltd.
PAMS Technical Documentation
Issue 1 06/00