Possible Technical Standards for Educational and Community Television by Satellite

R. P. Haviland

The standards problem involved in establishing a new television service by satellite is discussed. Three major possibilities are: (1) to match existing standards, (2) to match existing picture standards but allow new RF standards and (3) to allow new standards. It is concluded that matching existing picture standards with FM rather than AM modulation of the RF signal is the preferred approach for ETV and similar systems. Picture quality requirements should be set at the best of normal television, i.e., Grade 1. The relationships between carrier-to-noise, signal-to-noise ratio, deviation, threshold and fade margin, proposed channel widths and design values are reviewed.

Print ISSN
Published
1972-03
Content type
Original Research
DOI
10.5594/J05626