Nokia 9000i Service Manual page 189

After Sales
Technical Documentation
When signal data is received, the 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 the first mentioned help
line is on the display. When both measurements (signal and noise) are
done at least once, the signal to noise relationship and difference are also
shown on the display.
Upon exiting, the next selections are set to the values which were
selected before this adjustment.
– Active Unit
– Operation mode
– AGC value
Compensation factors:
comp_factor1 = 4.64 dB (Compensation factor for 67.71 kHz signal,
comp_factor2 = 2.27 dB (Compensation factor for real and calculated
3.2.7 – Charge Voltage Adjustment
This function needs 6 V charge voltage from external power supply. When
the function is activated the next window will be shown.
The A/D converter has positive 10 bit value.
The A/D converter value is read again when the previous value is received
and shown on the screen.
Amendment 1 04/97
because ASIC filter attenuates 67.71 kHz signal 4.64 dB)
noise bandwidth difference. Real noise bandwidth is
80 kHz and calculated bandwidth is 135 kHz)
RAE/RAK–1N
Service Software
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