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METHODS FOR CALIBRATION OF RADIO-FREQUENCY PATH LOSS IN RADIO-FREQUENCY TEST EQUIPMENT

  • US 20110301905A1
  • Filed: 01/21/2011
  • Published: 12/08/2011
  • Est. Priority Date: 06/04/2010
  • Status: Active Grant
First Claim
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1. A method of calibrating a plurality of test stations using a control test setup apparatus, wherein each test station includes a test unit, a test fixture, and a radio-frequency cable that connects the test fixture to the test unit, the method comprising:

  • with test equipment, calibrating the control test setup apparatus to obtain a set of reference power levels;

    connecting the control test setup apparatus to the test fixture of a selected one of the test stations;

    with the control test setup apparatus, sending radio-frequency signals at desired frequencies to the test unit of the selected one of the test stations over the radio-frequency cable;

    with the test unit of the selected one of the test stations, measuring a set of test station power levels for the radio-frequency signals at the desired frequencies; and

    with computing equipment, computing uplink test station error values based on the set of reference power levels and the set of test station power levels.

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