Tuning Steps; Rx Calibration (Agc + Afc) - Nokia NSB-1 Series Tuning Instructions

PAMS
Technical Documentation

Tuning Steps

1. RX Calibration (AGC + AFC)

Reference values for the received signal strength meter are program
tuned.
RSSI reference signal level programming:
– Select Tuning –> RX Calibration
– Check that the program asks you to use 1960.867710 MHz.
If it doesn't, change the continuous mode channel to 665 in RF Con-
trols window.
– Connect RF signal generator to the external antenna connector of the
phone.
– Adjust signal generator to 1960.867710 MHz.
– Adjust signal generator level to –60 dBm + cable attenuation.
– Press OK button
– Adjust signal generator level to –90 dBm + cable attenuation.
– Press OK button.
Service software reports:
A Table of AFC Parameters:
A Table for AGC Calibration:
If Calibration fails Service software reports that with error message or
some tuning value is fail.
– Press SAVE button
Original 06/98
AFC INIT Value
AFC Slope
PSW Slope
AGC in 3 db steps 0...57 dB
DAC and voltage reading for each gain value
Each DAC step should be 12 to 25.
NSB–1/3
Tuning Instructions
Page 11