Patent ID: 7112970
Filing Date: 2006-09-26
Classification: G01R,H01R

Abstract:
1. A method comprising: connecting in series at least a first coaxial cable, an adapter, and a second coaxial cable, all having the same impedance, to form a calibration configuration; sending a first radio frequency signal through the calibration configuration; measuring a first loss in the radio frequency signal after the first radio frequency signal is sent through the calibration configuration; placing a radio frequency test probe in a test fixture; connecting in series at least the first coaxial cable, the radio frequency test probe in the test fixture, the adapter, and the second coaxial cable to form a test configuration in which the adapter contacts the radio frequency test probe; sending a second radio frequency signal through the test configuration; measuring a second loss in the second radio frequency signal after the second radio frequency signal is sent through the test configuration; and subtracting the first loss from the second loss to derive a fixture loss.