HD 573 S1:1990
(Main)Type C helical video tape recorders
Type C helical video tape recorders
Defines the electrical and mechanical characteristics of equipment which will provide for interchangeability of recording. The requirements given are related to 525 line-60 field and/or for 625 line-50 field systems. Applies to magnetic video recording and/or reproduction using 25.4 mm (1 in) tape on type C helical video tape recorders suitable for broadcast applications.
Videobandgeräte mit Schrägspuraufzeichnung Typ C
Magnétoscopes à enregistrement hélicoïdal de type C
Définit les caractéristiques électriques et mécaniques des équipements qui permettront l'interchangeabilité des enregistrements. Les exigences indiquées sont relatives aux systèmes 525 lignes-60 trames et/ou 625 lignes-50 trames. S'applique àl'enregistrement et/ou à la reproduction magnétique vidéo utilisant la bande 25,4 mm (1 in) sur les magnétoscopes à défilement hélicoïdal de type C convenant aux applications de radiodiffusion.
Videorekorderji tipa C
General Information
Relations
Standards Content (Sample)
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NORME
CEI
INTERNATIONALE
IEC
60558
INTERNATIONAL
Première édition
STAN DARD
First edition
1982-01
Magnétoscopes
à enregistrement helicoïdal
de type C
Type C helical video tape recorders
© IEC 1982 Droits de reproduction réservés —
Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni
No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun
any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo-
including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur.
writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
S
PRICE CODE
International Electrotechnical Commission
IEC
Me>tsuyHapoaHaa 3neKrporexHHVecMaa KoMt7ccIa
Pour prix, voir catalogue en vigueur
• •
For price, see current catalogue
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- 3 -
558 © I EC 1982
CONTENTS
Page
FOREWORD 5
PREFACE 5
Clause
1. Scope 7
2. Object 7
7 3. Format description
4. Environment 7
5. Tapes and spools 7
7
5.1 Dimensions of magnetic tape for television
5.2 Spools 9
11
5.3 Magnetic tape properties
11
6. Transport geometry parameters and description of the basic system
11
6.1 Definitions of terms
13
6.2 Video and sync record system
6.3 Scanner pole tips 13
6.4 Scanner guides 15
15
6.5 Drum diameter and tape tension
15
7. Dimensions and location of records
15
7.1 Test environment
17
7.2 Tape speed
17 7.3 Record locations and dimensions
17
7.4 Video record straightness
17
7.5 Relative positions of recorded signals
17
7.6 Gap azimuth
23
8. Electrical parameters
23
8.1 Modulation system
23
8.2 Signal processing
25
8.3 Characteristic frequencies
25
8.4 Record head current
27
8.5 Recording of the audio tracks
27
8.6 Tracking control record
30
FIGURES
39
APPENDIX A - Transmission characteristics of the signal chain
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558 © I E C 1982 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
TYPE C HELICAL VIDEO TAPE RECORDERS
FOREWORD
1) The formal decisions or agreements of the I EC on technical matters, prepared by the Technical Committees on which all
the National Committees having a special interest therein are represented, express, as nearly as possible, an international
consensus of opinion on the subjects dealt with.
2) They have the form of recommendations for international use and they are accepted by the National Committees in that
sense.
3)
In order to promote international unification, the I EC expresses the wish that all National Committees should adopt the
text of the I EC recommendation for their national rules in so far as national conditions will permit. Any divergence
between the I EC recommendation and the corresponding national rules should, as far as possible, be clearly indicated in
the latter.
PREFACE
This standard has been prepared by Sub-Committee 60B: Video Recording, of I EC Technical
Committee No. 60: Recording.
Drafts were discussed at the meeting held in Palo Alto in 1979. As a result of this meeting, a draft,
Document 60B(Central Office)40, was submitted to the National Committees for approval under
the Six Months' Rule in March 1980.
The National Committees of the following countries voted explicitly in favour of publication:
Austria Netherlands
Belgium New Zealand
Canada Poland
Denmark Romania
Egypt South Africa (Republic of)
France Spain
Germany Turkey
Israel Union of Soviet
Italy Socialist Republics
Japan United States of America
Korea (Republic of)
Other IEC publications quoted in this standard:
Publications Nos. 94: Magnetic Tape Sound Recording and Reproducing Systems.
347: Transverse Track Recorders.
461: Time and Control Code for Video Tape Recordings.
503: Spools for 1 in (25.4 mm) Video Magnetic Tape.
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558 © I EC 1982 - 7 -
TYPE C HELICAL VIDEO TAPE RECORDERS
1. Scope
This standard applies to magnetic video recording and/or reproduction using 25.4 mm
(1 in) tape on type C helical video tape recorders suitable for broadcast applications.
3.
Object
The object of this standard is to define the electrical and mechanical characteristics of
equipment which will provide for interchangeability of recordings. The requirements given
are related to 525 line-60 field and/or 625 line-50field systems.
3. Format description
Two video recording heads are use
...
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