User's Manual

Table Of Contents
Power Delta Calibration68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
I-11
Table I-4: Agilent E4406A Power Delta Calibration Procedure
Step Action
NOTE
Do not change the frequency and amplitude settings on the E4432B when performing the following
steps.
8 Set the E4406A as follows:
- Press Preset to exit any modes for which the transmitter tester is configured.
- Press MODE and, using the soft keys to the right of the screen, select cdmaOne.
- Press MEASURE and, using the soft keys, select spectrum.
- Press Frequency and, using the soft keys, select Center Frequency.
- Using the numeric keypad. enter the frequency of the channel to be calibrated.
- Using the soft keys, select the frequency range to be measured (for example, MHz).
- Press Input/Output and, using the soft keys, select Input Atten.
- Using the numeric keypad, set Input Atten to 0 (zero) and, using the soft keys, select dB.
- Using the soft keys, select External Atten and then select Mobile.
- Using the numeric keypad, set Mobile to 0 (zero) and, using the soft keys, select dB.
- Using the soft keys, select Base.
- Using the numeric keypad, set Base to 0 (zero) and, using the soft keys, select dB.
- Press MEASURE and, using the soft keys, select Channel Power.
9 On the E4432B signal generator, press RF On/Off to toggle the RF output to RF ON.
- Note that the RF On/Off status in the screen display changes.
10 Read the measured Channel Power from the E4406A screen display and record it as
result B____________________.
11 On the E4432B, press RF On/Off to toggle the RF output to RF OFF.
- Note that the RF On/Off status in the screen display changes.
12
Calculate the Power Calibration Delta value. The delta value is the power meter measurement minus
the Agilent 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
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 I-5).
I