Ir Test - Nokia NSB-7 Series Service Manual

PAMS Technical Documentation
Clipping distance is the difference to the signal clipping value. SNR is measured in AD
converter.
The last value on the display is signal power difference between I and Q branch. The
numbers are shown in 0.1dB accuracy. The error messages, "OUT OF RANGE", are
shown only if the SNR and/or amplitude difference values are not acceptable.
Signal/Noise radio button (ALT+S/ALT+N):
When buttons are pressed, the RX I and Q burst data is asked, text "SIGNAL
MEASURING..." or "NOISE MEASURING..." will come to the measurement group
window. The power level value should be -92 dBm during signal measurement.
When signal data is received, distance to clipping signal level is shown as dBs on the
display. When either signal or noise measurement results are received "MEASURING"
text is removed and measurements are updated to screen. When both measurements
(signal and noise) are done at least once, the signal to noise relation and difference
are also shown on the display.
When exit is made, the next selections are set to the values which were selected before
this adjustment.
• Operation mode
• AGC value
IR Test... command
Activation
Alt, E,I
Command is used for making IR module test. Function opens IR Test dialog:
Dialog mode: modal
IR Test dialog has following items:
Result box:
Result can be OK/FAILED
Issue 1 06/00
Status Bar Text
IR module test
ãNokia Mobile Phones Ltd.
Service Software Instructions
NSB-7
Page 63