EN 60961:1994

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

Applies to magnetic video recording and/or reproduction using 12,65 mm (0,5 in) tape on helical-scan video cassette recorders suitable for broadcast applications.

Video-Bandkassettensystem mit Schrägspuraufzeichnung auf Magnetband 12,65 mm (0,5 in) L-Format

Système de magnétoscope à cassette à balayage hélicoïdal utilisant la bande magnétique de 12,65 mm (0,5 in) de format L

S'applique à l'enregistrement et/ou à la lecture magnétique vidéo des cassettes à bande magnétique de 12,65 mm (0,5 in) de large sur les magnétoscopes à cassettes à balayage hélicoïdal convenant aux applications en radiodiffusion.

Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type L (IEC 60961:1993)

General Information

• Status: Published
• Publication Date: 07-Feb-1994
• Withdrawal Date: 30-Nov-1994
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 08-Feb-1994
• Completion Date: 08-Feb-1994
• Ref Project: SIST EN 60961:1999 - Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type L

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60961:1999
01-april-1999
Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on
type L (IEC 60961:1993)
Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type
L
Video-Bandkassettensystem mit Schrägspuraufzeichnung auf Magnetband 12,65 mm
(0,5 in) L-Format
Système de magnétoscope à cassette à balayage hélicoïdal utilisant la bande
magnétique de 12,65 mm (0,5 in) de format L
Ta slovenski standard je istoveten z: EN 60961:1994
ICS:
33.160.40 Video sistemi Video systems
SIST EN 60961:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60961:1999

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SIST EN 60961:1999

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SIST EN 60961:1999

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SIST EN 60961:1999

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SIST EN 60961:1999

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SIST EN 60961:1999
NORME CEI
INTERNATIONALE IEC
961
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1993-12
Système de magnétoscope à cassette
à balayage hélicoïdal utilisant
la bande magnétique de 12,65 mm (0,5 in)
de format L
Helical-scan video tape cassette
system using 12,65 mm (0,5 in)
magnetic tape on type L
© CEI 1993 Droits de reproduction réservés — Copyright — all rights reserved
Aucune partie de cette publication ne peut âtre reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission
cédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans raccord écrit de l'éditeur. in writing from the publisher.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale
CODE PRIX ii
International Electrotechnical Commission
PRICE CODEPRICE CODE
IEC MextuyHaponHaA 3nettrpoTeXHH4ecMaa
HOMHCCHA
Pour prix, voir catalogue en vigueur
• ^
For price, see current catalogue

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SIST EN 60961:1999
961 ©IEC:1993 - 3 -
CONTENTS
Page
FOREWORD 9
Clause
SECTION ONE: GENERAL
11
1 Scope
11 2 Normative references
11 3 Environment and test conditions
11
Environment
3.1
13
3.2 Reference tape
13
Calibration tape 3.3
SECTION TWO: VIDEO TAPE AND VIDEO TAPE CASSETTE
SECTION THREE: VIDEO CASSETTE RECORDERS

15
4 Definitions of terms
15
Scanner 4.1
15
4.2 Drum
15 4.3 Upper drum
15
4.4 Lower drum
15 4.5 Effective drum diameter
17
4.6 Helix angle
17
4.7 Track angle
17 4.8 Centre span tension
17
4.9 Wrap angle
17
4.10 Lead signal overlap
17
5 Scanner pole-tips
17 5.1 Pole-tip projection
17
5.2 Luminance pole-tips
17 5.3 Colour-recording pole-tips
5.4 Erase pole-tips 19
19
5.5 Channel identification
Helix angle 19
6
19
7 Drum diameter and tape tension
19 7.1 Actual upper drum diameter
19
7.2 Actual lower drum diameter
7.3 Upper drum 19
21 7.4 Centre span tension

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SIST EN 60961:1999
961 © I EC:1993 – 5 –
Page
Clause
21
Dimensions and location of records 8
21
Test environment 8.1
21 8.2 Tape speed
21
Recording locations and dimensions 8.3
21
8.4 Curvature of video recordings
23
Relative positions of recorded signals 8.5
23 8.6 Gap azimuth
23
9 Luminance and colour-recording system
23
10 Recording characteristics
SECTION FOUR: RECORDING CHARACTERISTICS
23
11 Video recording
25 11.1 Luminance channel
31 11.2 Chrominance channel
35 11.3 Decoding and colour-field identification
37 12 Longitudinal audio signal recording (channels 1 and 2)
37
12.1 Reference levels
37 12.2 Frequency response
39
12.3 Track usage
41 13 FM audio signal recording (channels 3 and 4)
41
13.1 Signal processing
41
13.2 Reference levels
43 13.3 Noise reduction
43
13.4 Frequency modulation
43 13.5 Recording current
45
13.6 Track usage
45 14 Time and control code recording
45
14.1 Designated track for time and control code
45 14.2 Recording method
45 15 Tracking control recording
45 15.1 Tracking control signal
47 15.2 Tracking control and video timing
47
15.3 Recording method
SECTION FIVE: TYPE–L FORMAT VIDEO TAPE AND VIDEO TAPE CASSETTE
47 16 Mechanical characteristics of video tape cassette
47
16.1 Cassette outside dimensions
47
16.2 Datum planes

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SIST EN 60961:1999
- 7 -
961 ©IEC:1993
Page
Clause
47
16.3 Window area and label area
47
16.4 Manufacturer's identification holes
16.5 Safety tab and safety plug 49
51
16.6 Reel
51
16.7 Cassette lid
51
17 Magn
...