BS 7486-1:1991

This standard BS 7486-1:1991 Specification for helical-scan video tape cassette system using 12.65 mm (0.5 in) magnetic tape on type Beta format. FM audio recording is classified in these ICS categories:

• 33.160.40 Video systems

This part of IEC 1053 is applicable to frequency modulation (FM) audio recording on video recorders fully compatible with the beta format for 625 lines-50 field television systems defined in IEC 767.

The object of this part is to define the electrical and mechanical characteristics of FM audio recording which will provide for the interchangeability of recorded cassettes. The requirements given relate to 625 lines-50 field systems.

Defines electrical and mechanical characteristics to ensure the interchangeability of recorded cassettes.