What is this BS 6502 - Helical-scan video tape cassette system about?
BS 6502 discusses specifications for a helical-scan video tape cassette system using 12.65 mm (0.5 in) magnetic tape on type beta format.
BS 6502 applies to magnetic video recording using 12.65 mm (0.5 in) tape cassettes on two-head helical-scan video cassette recorders and defines the basic beta-format video cassette systems.
BS 6502 gives dimensional and other characteristics necessary to permit the interchangeability of recorded cassettes. The requirements given relate to the 525 line-60 field and 625 line-50 field systems. Three tape speeds, 40 mm/s, 20 mm/s, and 13.3 mm/s, are available for the 525 line-60 field systems. Tape speed 18.7 mm/s applies to 625 line-50 field system.
Who is BS 6502 - Helical-scan video tape cassette system for?
BS 6502 on helical-scan video tape cassette system is useful for:
- Video equipment manufactures
- Video tape cassette system manufactures
- Helical-scan video tape cassette system manufacturers
- Audio programmers
- Sound technicians
- Regulatory bodies
Why should you use BS 6502 - Helical-scan video tape cassette system?
Helical scan is a method of recording high-frequency signals on magnetic tape. It is used in open-reel video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drive.
The switching position between the two video heads lies between five and nine horizontal lines before the front edge of the vertical synchronizing pulse. The minimum overlap of the two video heads is 2.5 horizontal lines on either side of the switching position.
BS 6502 discusses video-tape cassettes, videocassette recorders, tape characteristics, recording characteristics, and noise reduction. This will help you to understand the dimensional and other characteristics necessary to permit the interchangeability of recorded cassettes.
With obedience and compliance to BS 6502, you can enhance the helical-scan videotape cassette system’s effectiveness and efficacy and manufacture a standardized product.
