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Siemens Rolm Communications Inc.

Harry L Cochrane

John T Chapman

H Stephen Berger

Timothy L Wilson

Martha L Vela De Casillas

Roger A Bjork

A system and method for assessing the electric and magnetic field generated by equipment under test (EUT) by maintaining the EUT in a specified, fixed tilt position, allowing the EUT to rotate while in that specified position and tilting the TEM cell through at least two angles about the EUT. Embodiments contemplate that a fixed tilt mechanism for maintaining the EUT in a fixed position relative to the tilting of the TEM cell is used. The present invention further contemplates various schemes for determining the electric and magnetic fields generated from the EUT based upon the composite electromagnetic reading from the TEM cell. These schemes, which result in improved measurements of the magnetic and electric fields, determine the angles to which the TEM is tilted.

System and method for making electromagnetic measurements using a

A method of and system for automatically determining length, attenuation, impedance and existence of bridge taps on installed communication cable having access to only one end of the cable. A waveform, which includes incident and reflected pulses, is analyzed to determine the presence of significant pulses. The presence of only one positive significant pulse indicates the absence of any discontinuities and facilitates the calculation of a signal-to-noise ratio which determines whether the cable will support the operation of digital communication thereon. The presence of more than one positive significant pulse or a negative pulse indicates the presence of at least one fault on the cable which prevents the operation of digital communication on the cable.

System and method of determining cable characteristics

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Liberty Hill, TX, United States of America

Harry L Cochrane