RH-128
Service Software Instruction
CDMA RxAGC Calibration
Supported receiver calibration items are the following:
CP DB HWD PCS RxAGC
CP DB HWD PCS RxAGC Freq Chan Adj
Note: Before starting the RxAGC Calibration, the Rx date must be set empty. Otherwise the calibration
value may not be correct.
CDMA RxAGC Baseline
CDMA RxAGC Baseline overview
The basic mechanism for calibration is to provide a signal of known power at the antenna, allow the
RxAGC to settle, and make note of the resulting RxAGC PDM value. In this way, the “settled” value of
the PDM for a given Rx power is known.
Calibration Procedure
A. Start with reset system (PS power down, reset).
B. Click on CP Enable/Disable and CP Power Down/Up. Let the CP disable and power down.
C. Set the channel. Set the control mode to Manual, and the band to the target band.
D. Set the test set frequency channel to the test frequency. For the first data point, enter the channel
used to calibrate the Rx AGC. Then set the test set transmission power to a desired power which is in
the Rx highest gain. The Reference Level is -99dB.
E. Initialize the calibration RxAGC gain state by clicking on DSPM Rfc Dagc. Set gain state to highest
gain.
F. Click on DSPM Spy Enable/Disable.
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