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JJF 1387-2013 English PDF

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JJF 1387-2013: Calibration Specification for Vectorscopes
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JJF 1387-2013English719 Add to Cart 6 days [Need to translate] Calibration Specification for Vectorscopes Valid JJF 1387-2013

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Basic data

Standard ID JJF 1387-2013 (JJF1387-2013)
Description (Translated English) Calibration Specification for Vectorscopes
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A56
Classification of International Standard 17.220
Word Count Estimation 31,338
Quoted Standard GB 3174-1995; GB/T 7400-2011
Regulation (derived from) ?State AQSIQ Announcement 2013 No. 7;
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to the PAL vectorscope calibration. NTSC vectorscope calibration system can be implemented by reference.

JJF 1387-2013: Calibration Specification for Vectorscopes

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Vectorscopes People's Republic of China National Metrology Technical Specifications Vectorscope calibration specifications Issued on. 2013-01-06 2013-04-06 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Vectorscope calibration specifications Focal point. the National Radio Technical Commission metering The main drafting units. China Electronics Technology Group Corporation Institute Participated in the drafting unit. China Electronics Technology Group Corporation No.45 Research Institute This specification commissioned the National Radio Technical Commission responsible for the interpretation of measurement The main drafters of this specification. Han Dong (Third Research Institute of China Electronics Technology Group Corporation) Liu Lei (Third Research Institute of China Electronics Technology Group Corporation) Drafters participate. Jiang Zhiguo (Third Research Institute of China Electronics Technology Group Corporation) Songxiu Min (China Electronics Technology Group Corporation No.45 Research Institute)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 SCH phase (1) 3.2 crosstalk between channels (1) 4 Overview (1) 5 Metrological characteristics (1) 5.1 chrominance bandwidth (1) 5.2 vector phase (1) 5.3 vector phase increment (1) 5.4 Vector Magnitude (2) 5.5 differential gain (2) 5.6 Differential Phase (2) 5.7 SCH phase (2) 5.8 variable gain adjustment range (2) 5.9 Return Loss (2) 5.10 carrier frequency offset changes the phase (2) 5.11 burst amplitude change of phase offset (2) Channel crosstalk between 5.12 (2) 5.13 XY channel (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 calibration equipment (2) 7 Calibration methods and calibration items (4) 7.1 appearance and working properly check (4) 7.2 chrominance bandwidth (4) Vector phase 7.3 (5) 7.4 vector phase increment (5) 7.5 Vector Magnitude (6) 7.6 differential gain and differential phase (6) 7.7 SCH phase (6) 7.8 variable gain adjustment range (6) 7.9 Return Loss (7) 7.10 carrier frequency offset changes the phase (7) 7.11 burst amplitude change phase shift (7) 7.12 crosstalk between the channels (7) 7.13 XY channel frequency response (8) 7.14 XY phase measurement (8) 8 calibration results expression (8) 9 Recalibration interval (9) Appendix A Calibration Record Form (10) Appendix B major project calibration Measurement Uncertainty instance (16) Appendix C calibration results within the page format (19)

Introduction

This specification based JJF 1071-2010 "National Calibration Specifications writing rules" and JJF 1059-1999 "measure Evaluation and Expression of Uncertainty "Writing. Specification uses the GB 3174-1995 "PAL-D television broadcasting system specification" Related definition color bar signal and the representation and GB/T 7400-2011 "Broadcasting term" in the derivative gain And the definition of differential phase. Measuring the PAL television signal vector oscilloscope calibration method are described. This specification is the first release. Vectorscope calibration specifications

1 Scope

This standard applies to the PAL vectorscope calibration, the calibration of the NTSC vectorscope can refer carried out. 2. References GB 3174-1995 PAL-D television broadcasting system specifications GB/T 7400-2011 term Broadcasting For dated references, only the dated edition applies to this specification; undated references, The latest version (including any amendments) applies to this specification.

3 terminology and units of measurement

3.1 SCH phase subcarriertohorizontalphase TV video signal horizontal sync leading edge 50% level and a reference subcarrier over the timing relationship between the zero. The error In subcarrier phase in degrees. 3.2 channel crosstalk between crosstalkbetweenchannels A trace of the voltage signal generated at the output corresponding with the UAA A track signal corresponding to the output of the B track produced UAB than the input voltage of the string, expressed in decibels.

4 Overview

Vectorscope mainly used to measure and display analog TV video signal chrominance component vector of phase and amplitude, there These vectorscope also has differential gain, differential phase, SCH phase measurements and other functions. Vectorscope is analog video Frequency measuring instrument used and displayed. It mainly consists of the video amplifier, subcarrier generator, demodulators, phase shifters, sweep Description generator, output amplifier, a calibration signal generator, the election row controller, a display portion and other units.

5 Metrological characteristics

5.1 Chroma Bandwidth 5.1.1 Measuring range. 1MHz ~ 2MHz. 5.1.2 The maximum permissible error. ± 200kHz. 5.2 vector phase 5.2.1 Measuring range. 0 ° ~ 360 °. 5.2.2 The maximum permissible error. ± 1 °. 5.3 vector phase increment 5.3.1 Measuring range. ± 10 ° or ± 3 °. 5.3.2 The maximum permissible error. ± 0.5 °.

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