What Is Calibration - LG L1150 Service Manual

E. What is Calibration?
1. What's the Rx Calibration
Find proper AGC Gain to make the same Rx Power fed into the Base Band Part regardless of
1
Antenna Input Level
Can make report correct RSSI level
2
2. What's the Tx Calibration
1 To make Tx Power Level transmitted properly following the information of Base Station
Example)
Base
Station
10. STAND ALONE TEST & CALIBRATION
X
G
X(Input Level)+G(Gain)=Y
GSM 5 Level
33 dBm
Tx Cal = In this case, to make
- 125 -
Y
BB
Part
Mobile
Station
MS transmit 33dBm