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BS EN 60961:1994

Current

Current

The latest, up-to-date edition.

Specification for helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type L

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-07-1994

€322.53
Excluding VAT

Cooperating organizations
National foreword
Foreword
Section one: General
1 Scope
2 Normative references
3 Environment and test conditions
3.1 Environment
3.2 Reference tape
3.3 Calibration tape
Section two: Video tape and video tape cassette
Section three: Video cassette recorders
4 Definition of terms
4.1 Scanner
4.2 Drum
4.3 Upper drum
4.4 Lower drum
4.5 Effective drum diameter
4.6 Helix angle
4.7 Track angle
4.8 Centre span tension
4.9 Wrap angle
4.10 Lead signal overlap
5 Scanner pole-tips
5.1 Pole-tip projection
5.2 Luminance pole-tips
5.3 Colour-recording pole-tips
5.4 Erase pole-tips
5.5 Channel identification
6 Helix angle
7 Drum diameter and tape tension
7.1 Actual upper drum diameter
7.2 Actual lower drum diameter
7.3 Upper drum
7.4 Centre span tension
8 Dimensions and location of records
8.1 Test environment
8.2 Tape speed
8.3 Recording locations and dimensions
8.4 Curvature of video recordings
8.5 Relative positions of recorded signals
8.6 Gap azimuth
9 Luminance and colour-recording system
10 Recording characteristics
Section four: Recording characteristics
11 Video recording
11.1 Luminance channel
11.2 Chrominance channel
11.3 Decoding and colour-field identification
12 Longitudinal audio signal recording (channels 1
      and 2)
12.1 Reference levels
12.2 Frequency response
12.3 Track usage
13 FM audio signal recording (channels 3 and 4)
13.1 Signal processing
13.2 Reference levels
13.3 Noise reduction
13.4 Frequency modulation
13.5 Recording current
13.6 Track usage
14 Time and control code recording
14.1 Designated track for time and control code
14.2 Recording method
15 Tracking control recording
15.1 Tracking control signal
15.2 Tracking control and video timing
15.3 Recording method
Section five: Type-L format video tape and video tape
               cassette
16 Mechanical characteristics of video tape cassette
16.1 Cassette outside dimensions
16.2 Datum planes
16.3 Window area and label area
16.4 Manufacturer's identification holes
16.5 Safety tab and safety plug
16.6 Reel
16.7 Cassette lid
17 Magnetic tape
17.1 Type of magnetic tape
17.2 Tape width
17.3 Tape thickness and length
17.4 Coercivity
17.5 Transmissivity
17.6 Offset yield strength
17.7 Residual elongation
17.8 Magnetic orientation
18 Leader tape/trailer tape
18.1 Mechanical characteristics
18.2 Leader tape and trailer tape dimensions
18.3 Offset yield strength
18.4 Splicing break strength
Figures
Annexes
A Cross tape track measurement technique
B Reference tapes
ZA (normative) Other international publications
      quoted in this standard with the references of the
      relevant European publications
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references

Specifies recording MODE 1 (oxide particle tape) and MODE II (metal particle tape) for recording of FM signals and defines the electrical and mechanical characteristics of equipment to ensure the interchangeability of recorded cassettes for 525 line-60 field and 625 line-50 field systems.

Committee
EPL/100
DevelopmentNote
Also numbered as IEC 60961. Supersedes BS 7260(1989) & 89/25034 DC. (12/2005)
DocumentType
Standard
Pages
70
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
NBN EN 60961 : 1996 Identical
DIN EN 60961:1994-07 Identical
EN 60961:1994 Identical
NF EN 60961 : 1994 Identical
I.S. EN 60961:1994 Identical
SN EN 60961 : 1994 Identical

BS 7868:1996 Guide for calibration tapes for broadcast VTRs

IEC 60767:1983 Helical-scan video-tape cassette system using 12.65 mm (0.5 in) magnetic tape on type beta-format
BS EN 60094-1:1994 Magnetic tape sound recording and reproducing systems Specification for general conditions and requirements
BS 6502:1984 Specification for helical-scan video tape cassette system using 12.65 mm (0.5 in) magnetic tape on type Beta format
IEC 60461:2010 Time and control code
IEC 60268-17:1990 Sound system equipment. Part 17: Standard volume indicators
BS 6840-17:1991 Sound system equipment Methods for specifying and measuring the characteristics of standard volume indicators

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