User's Manual

Table Of Contents
Power Delta Calibration – continued
FEB 2005 1X SC 4812T Lite BTS Optimization/ATP H-19
PRELIMINARY
Table H-5: Advantest Power Delta Calibration Procedure
n ActionStep
39 Record the Marker Level reading as Result B.
B________________________
40 Calculate the Power Calibration Delta Value.
The Delta Value is the Power Meter Measurement minus the Advantest Measurement.
Delta = A – B
Example: Delta = –0.70 dBm – (–1.25 dBm) = 0.55 dBm
Example: Delta = 0.26 dBm – 0.55 dBm = –0.29 dBm
NOTE
These examples are included to show the mathematics and do not represent actual readings.
NOTE
Add this Delta Value to the TX Cable Loss Value during In–Service Calibration. Refer to Step 4
in Table H-6.
Advantest
Power
Sensor
RF OUT
Short RF Cable
HP437B
SENSOR
R3561L
FW00803
Figure H-9: Delta Calibration Set–up – R3561L to HP437
R3561L
RF OUT
INPUT
Short RF Cable
R3465
FW00804
Figure H-10: Delta Calibration Set–up – R3561L to R3465
Advantest
H