User Guide

PAMS
Technical Documentation
NSB–1/3
Tuning Instructions
Page 11
Original 06/98
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:
AFC INIT Value
AFC Slope
PSW Slope
A Table for AGC Calibration:
AGC in 3 db steps 0...57 dB
DAC and voltage reading for each gain value
Each DAC step should be 12 to 25.
If Calibration fails Service software reports that with error message or
some tuning value is fail.
– Press
SAVE button