MEANS FOR RECEIVING DATA VIA SATELLITE USING AT LEAST TWO POLARISATIONS

摘要

Apparatus is provided which allows the simultaneous reception, processing and availability of digital data which is transmitted in both linear and circular polarity formats, thereby allowing data over a greater frequency bandwidth to be available for selection and for selection and processing of data of different polarity formats to be achieved simultaneously. This therefore means that there is now the practical possibility to allow the continued broadcast of data in a circular polarity format over existing bandwidths and the additional broadcast of data in a linear polarity format in the same geographical region and over a larger frequency bandwidth thereby enlarging the amount of data which can be transmitted, and received and the user selections which are available and ensuring that the linear and circular polarity format data can be received and processed and be available in response to a user selection simultaneously.