The Radiocommunication Assembly considering that most current television receivers use quasi-synchronous detection; that a linear overall phase response is essential for data broadcasting services, for example, Teletext; that different transmitter phase pre-corrections are used in different countries; that current receivers are designed to operate with the existing phase characteristics of the transmitters to ensure an overall phase linearity; that modern receiver filter technology does not necessarily require a transmitter phase pre-correction; that considerable benefits are obtained if the phase pre-correction of transmitters were removed and receivers with a linear phase characteristic were used.