ITU-T O.9-1999
Measuring Arrangements to Assess the Degree of Unbalance About Earth - Series O: Specifications of Measuring Equipment General Study Group 4; 19 pp

Standard No.

ITU-T O.9-1999

Release Date

1999

Published By

International Telecommunication Union (ITU)

Latest

ITU-T O.9-1999

Scope

This Recommendation describes arrangements for measuring the following parameters: - longitudinal conversion loss; - transverse conversion loss; - longitudinal conversion transfer loss; - transverse conversion transfer loss; - input longitudinal interference loss; - common-mode rejection; - output signal balance. In practice, the above parameters are the seven most significant unbalance parameters. Limits for these parameters, special considerations for terminating impedances and the measurement frequencies to be used are given in the relevant Recommendation for the item under test. This Recommendation is in agreement with the principles, the nomenclature and the definitions, addressed in Recommendation G. 1 17 [ 11, which considers the transmission aspects of unbalance about earth. References are made in the following clauses to the appropriate parts of Recommendation G. 1 17 [i]. In clause 5, guidance is given regarding the construction of a test bridge along with values of the required components.

ITU-T O.9-1999 history

• 1999 ITU-T O.9-1999 Measuring Arrangements to Assess the Degree of Unbalance About Earth - Series O: Specifications of Measuring Equipment General Study Group 4; 19 pp