Test systems with multiple antennas for characterizing over-the-air path loss

A method of calibrating wireless test equipment that includes a test chamber having a plurality of antennas for wirelessly testing devices under test during manufacturing to determine whether the devices under test are performing satisfactorily, comprising:

• gathering over-the-air path loss measurements for the plurality of antennas at each of a plurality of frequencies by making wireless measurements with the antennas in the test chamber;
• and
• determining, for each of the plurality of frequencies, which of the antennas to use in wirelessly testing the devices under test during manufacturing based on the over-the-air path loss measurements.

A method of using wireless test equipment that includes a test chamber having a plurality of antennas to wirelessly test devices under test during manufacturing to determine whether the devices under test are performing satisfactorily, comprising:

• with the wireless test equipment, testing the wireless devices under test at each of a plurality of radio-frequency test frequencies by using, for each of the plurality of radio-frequency test frequencies, a selected one of the plurality of antennas based on a preferred antenna list.