I.S. EN 60961:1994
Current
The latest, up-to-date edition.
HELICAL-SCAN VIDEO TAPE CASSETTE SYSTEM USING 12,65 MM (0,5 INCH) MAGNETIC TAPE ON TYPE L
12-01-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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
Applicable to magnetic video recording and/or reproduction using 12,65 mm (0,5 inch) tape cassettes on helical-scan videocassette recorders suitable for broadcast applications. Specifies two recording modes. MODE 1 uses oxide particle tape, MODE 2 uses metal particle tape and permits frequency modulated (FM) audio signals to be recorded. Defines the electrical and mechanical characteristics of equipment, which will provide for interchangeability of recorded cassettes.
DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
DocumentType |
Standard
|
PublisherName |
National Standards Authority of Ireland
|
Status |
Current
|
Standards | Relationship |
EN 60961:1994 | Identical |
NBN EN 60961 : 1996 | Identical |
BS EN 60961:1994 | Identical |
NF EN 60961 : 1994 | Identical |
DIN EN 60961:1994-07 | Identical |
IEC 60961:1994 | Identical |
SN EN 60961 : 1994 | Identical |
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