User's Manual Part 2

Power Delta Calibration – continued

PRELIMINARY

1X SCt4812ET Lite BTS Optimization/ATP

08/01/2001

H-8

Table H-2: Advantest R3267 Power Delta Calibration Procedure

Step Action

Calculate the Power Calibration Delta value. The delta value is the power meter measurement minus

the Advantest measurement.

Delta = A – B

Example: Delta = –0.7 dBm – (–1.25 dBm) = 0.55 dB

Example: Delta = 0.26 dBm – 0.55 dBm = –0.29 dBm

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 (see step 4 in

Table H-6).

Figure H-3: Delta Calibration Setup – Advantest R3562 to HP437

Power

Sensor

Advantest R3562 and R3267

Short RF Cable

HP437B

SENSOR

RF OUT

Figure H-4: Delta Calibration Setup – Advantest R3562 to R3267

Advantest R3562 and R3267

Short RF Cable

RF OUT

RF IN