Agilent Technologies E6385A manual Fs Oss-wbOe Y--uw

Performing Tests

Transmit Power Calibration Test (PCS Minicell)

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•Determine and input to the Test Software which routine diagnostics are to be inhibited on the Base Station during the test, and whether functional testing and call processing are also to be inhibited on the Base Station. The Test Software will send the appropriate CFR commands to the Base Station.

•If not already done, calibrate the Test Cables that will be used in measuring the Base Station output power.

•Determine and input to the Test Software the type of power amplifier used in the Base Station (CTU, HPCTU1, HPCTU2, HPCTU3, or HPCTU4). If you do not know the amplifier type, contact your engineering department.

•Determine the BCR attenuation factor from the forms in an APX/RCV session. After obtaining this information, input it to the Test Software. (You may use the BTS Laptop Utility program eiUfOT fQdYUZMX window to set the forms.

•Once the Amplifier Type and BCR Attenuation Factor have been identified to the Test Software, it will determine the number of Channel Elements to add to the carrier to perform the power calibration test.

•Based on the Amplifier Type and BCR Attenuation Factor, the Test Software will determine the Calibration Power Level to be expected from the Base Station. This is the power level to which the amplifier will be adjusted during the test.

•The Amplifier Type selected will require that certain translations be set in the forms in an APX/RCV session. The Test Software will supply the translation values and identify the forms on which to set those values. You may use the BTS Laptop Utility program eiUfOT fQdYUZMX window to set the forms.

UYbadfMZfE If you change the translation values for this test, you must restore the values at the end of the test.

•The Test Software will send commands to the Base Station to configure the BBA under test and turn off the transmitter.

•Once the BBA stops transmitting, connect the test cables between the Test Set and the Base Station Power Output to measure the power.

•The Test Software will issue commands to cause the BBA to start transmitting.

•The Test Software will display a power meter to allow you to adjust the Base Station power to the proper range.

•The Test Software will display the Base Station power in watts and dBm on the Test

Set screen and in the BTS Laptop Utility program fw dw window.

• The Test Software will again turn off the transmitter.

58 Chapter 4

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