Patent ID: 6094042
Filing Date: 2000-07-25
Classification: G01R

Abstract:
A method of compensating for cable loss during test of a circuit, said method comprising the steps of:providing a first probe tip having a first compensation network, said first probe tip being configured to connect to a circuit under test and to couple to a connector for non-permanent connection to a cable, wherein said cable has a first frequency dependent cable attenuation corresponding to a first test signal, and wherein said first compensation network has a first frequency dependent compensation network attenuation corresponding to the first test signal, said first frequency dependent compensation network attenuation being configured to alter effects of said first frequency dependent cable attenuation to provide a first frequency independent attenuation of the first test signal; andproviding a second probe tip having a second compensation network, said second probe tip being configured to connect to a circuit under test and to couple to said connector for non-permanent connection to said cable, wherein said cable has a second frequency dependent cable attenuation corresponding to a second test signal, and wherein said second compensation network has a second frequency dependent compensation network attenuation corresponding to the second test signal, said second frequency dependent compensation network attenuation being configured to alter effects of said second frequency dependent cable attenuation to provide a second frequency independent attenuation of the second test signal, said second frequency independent attenuation being unequal to said first frequency independent attenuation.