Absolute decibels, especially the dBm, are still subject to much confusion and many mistakes. A historical survey of the dB is given, which ends in the new standard IEC 268. This standard abandons further use of the dBm, where the dB re 0.775 V no more corresponds to a definite symbol. A new term is proposed and some other new points of view are given.

Author: Wilms, Herman A.
Affiliation: National Radio- and Filmtechnlcal Institute, Vorst-Brussels, Belgium
AES Convention: 2ce (March 1972) Paper Number: M01
Publication Date: March 1, 1972

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