Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape - Type M2

Defines dimensions and other characteristics of equipment which are necessary to ensure the interchangeability of recorded cassettes. The requirements relate to 525 line-60 field and 625 line-50 field systems.

Videoband-Kassettensystem mit Schrägspuraufzeichnung auf Magnetband 12,65 mm (0,5 in) - Typ M2

Système de magnétoscope à cassette à balayage hélicoïdal utilisant la bande magnétique de 12,65 mm (0,5 in) de type M2

Définit les dimensions et autres caractéristiques des équipements qui sont nécessaires à l'interchangeabilité des cassettes enregistrées. Les exigences indiquées sont relatives aux systèmes à 525 lignes-60 trames et aux systèmes à 625 lignes-50 trames.

Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape - Type M2 (IEC 61118:1993)

General Information

Status
Published
Publication Date
10-Oct-1993
Withdrawal Date
30-Jun-1994
Current Stage
6060 - Document made available - Publishing
Start Date
11-Oct-1993
Completion Date
11-Oct-1993

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EN 61118:1999
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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61118:1999
01-april-1999
Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape -
Type M2 (IEC 61118:1993)
Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape - Type
M2
Videoband-Kassettensystem mit Schrägspuraufzeichnung auf Magnetband 12,65 mm
(0,5 in) - Typ M2
Système de magnétoscope à cassette à balayage hélicoïdal utilisant la bande
magnétique de 12,65 mm (0,5 in) de type M2
Ta slovenski standard je istoveten z: EN 61118:1993
ICS:
33.160.40 Video sistemi Video systems
SIST EN 61118:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61118:1999

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SIST EN 61118:1999

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SIST EN 61118:1999

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SIST EN 61118:1999

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SIST EN 61118:1999

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SIST EN 61118:1999
CEI
NORME
IEC
INTERNATIONALE
1118
INTERNATIONAL
Première édition
STANDARD
First edition
1993-07
Système de magnétoscope à cassette
à balayage hélicoïdal utilisant
la bande magnétique de 12,65 mm (0,5 in)
de type M2
Helical-scan video tape cassette
system using 12,65 mm (0,5 in)
magnetic tape – Type M2
© CEI 1993 Droits de reproduction réservés — Copyright - all rights reserved
zed ini
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or util
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 l'accord 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 "^
International Electrotechnical Commission
PRICE CODE J^
Memaywapoitiae 3netcrporexHwvecwaa HoMMccwa
IEC
Pour prix, voir catalogue en vigueur •

For price, see current cata logue

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SIST EN 61118:1999
1118 ©I EC:1993 - 3 -
CONTENTS
Page
FOREWORD 9
SECTION 1: GENERAL
Clause
11
1.1 Scope
11
1.2 Normative references
11
1.3 Environment and test conditions
11
1.3.1 Environment
13
1.3.2 Reference tape
13
1.3.3 Calibration tape
SECTION 2: VIDEO TAPE CASSETTE
15
2.1 Mechanical parameters
15
2.1.1 Cassette type
15 2.1.2 Dimensions of cassettes
15 2.1.3 Cassette dimension datum system
15
2.1.4 Window and label-pasting faces
17
2.1.5 Identification holes
19
2.1.6 Dimensions of reels
19
2.1.7 Tape windings
2.1.8 Unlocking of lid 19
2.1.9 Opening of lid 19
19
2.1.10 Releasing of reel brake
19
2.1.11 Automatic stop
SECTION 3: VIDEO CASSETTE RECORDERS
3.1 Definitions 19
3.1.1 Scanner 19
3.1.2 Drum 19
3.1.3 Upper drum 19
21
3.1.4 Lower drum
21 3.1.5 Effective drum diameter
21
3.1.6 Helix angle
21
3.1.7 Track angle
3.2 Drum diameter and structure 21
21 3.2.1 Actual upper drum diameter
21
3.2.2 Actual lower drum diameter
3.2.3 Upper drum section 21
21
3.3 Scanner pole tips
3.3.1 Pole tip projection 21
23
3.3.2 Pole tips
23
3.3.3 Chordal distance between luminance and chrominance pole tips

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SIST EN 61118:1999
1118 ©IEC:1993 — 5 —

Page
Clause
23
chrominance pole tips 3.3.4 Axial distance between luminance and
3.3.5 Channel identification 23
23
3.4 Helix angle
23
3.5 Dimensions and locations of records
23
3.5.1 Test environment
25
3.5.2 Tape speed
25
Record locations and dimensions 3.5.3
25 3.5.4 Video record curvature
25 3.5.5 Gap azimuth
25
3.6 Recording characteristics
SECTION 4: TAPE CHARACTERISTICS
4.1 Dimensions of video tape 29
4.1.1 Magnetic tape thickness 29
4.1.2 Magnetic tape width 29
29
4.2 Magnetic tape properties
4.2.1 Type of magnetic tape 29
4.2.2 Magnetic orientation 29
4.2.3 Coercivity 29
4.3 Leader tape and trailer tape 29
4.3.1 Automatic stop 29
Dimensions of leader and trailer tape 29
4.3.2
Splicing 29
4.3.3
SECTION 5: RECORDING CHARACTERISTICS
31 5.1 Video signal recording
5.1.1 Luminance channel 31
5.1.2 Chrominance channel 37
43
5.1.3 Y-C timing
43
Vertical interval subcarrier (VISC) 5.1.4
45
5.2 Longitudinal audio signal recording
45
5.2.1 Recording method
45
Recording/Reproducing reference levels 5.2.2
45
5.2.3 Frequency characteristics
47 5.2.4 Track usage (common audio mode)
49 5.2.5 Program audio head phasing
Recording polarity 49
5.2.6
49 5.3 FM audio signal recording (optional)
49 Recording/Reproducing reference levels 5.3.1
49 5.3.2 Noise reduction
51
Pre-emp
...

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