User's Manual

Power Delta Calibration

68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

H-10

Agilent E4406A Power Delta Calibration

The Agilent E4406A transmitter tester and E4432B signal generator test

equipment combination can be used for ISC of IS–2000 CDMA 1X as

well as IS–95A/B operation modes. The power delta calibration is

performed on the E4406A, but the E4432B is required to generate the

reference signal used to calculate the power delta offset. After the offset

value has been calculated, add it to the TX cable loss value in the LMF.

Follow the procedure in Table H-4 to perform the Agilent E4406A

Power Delta Calibration procedure.

Table H-4: Agilent E4406A Power Delta Calibration Procedure

Step Action

NOTE

Perform this procedure after test equipment has been allowed to warm–up and stabilize for a minimum

of 60 minutes. After it is warmed up and stabilized, calibrate the test equipment as described in the

“Test Set Calibration” section of the Optimization/Calibration chapter in the SC 4812T

Optimization/ATP manual.

1 Zero the Power Meter prior to connecting the power sensor to the RF cable from the signal generator.

NOTE

For best accuracy, always re–zero the power meter before connecting the power sensor to the

component being calibrated.

2 Connect a short RF cable from the E4432B RF OUTPUT connector the HP437 power meter power

sensor (see Figure H-7).

3 Set the E4432B signal generator as follows:

– Press Preset to exit any modes for which the signal generator is configured.

– Press Frequency and enter the frequency of the channel to be calibrated using the numeric

keypad.

– Using the soft keys to the right of the screen, select the frequency range to be measured (for

example, MHz).

– Press Amplitude and, using the numeric keypad, set signal amplitude to 0 (zero).

– Using the soft keys, set the measurement type to dBm.

4 On the E4432B, press RF On/Off to toggle the RF output to RF ON.

– Note that the RF On/Off status in the screen display changes.

5 Measure and record the value reading on the HP437 power meter as result A____________________.

6 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.

7 Disconnect the short RF cable from the HP437 power meter power sensor, and connect it to the

RF INPUT connector on the E4406A transmitter tester (see Figure H-8).

. . . continued on next page