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GB/T 39847-2021 English PDF

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US$409.00 · In stock
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GB/T 39847-2021: Verification test methods of access satellite network for FSS communication earth station
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39847-2021	409	Add to Cart	4 days	Verification test methods of access satellite network for FSS communication earth station	Valid

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Basic data

Standard ID: GB/T 39847-2021 (GB/T39847-2021)
Description (Translated English): Verification test methods of access satellite network for FSS communication earth station
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M35
Word Count Estimation: 22,215
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39847-2021: Verification test methods of access satellite network for FSS communication earth station

---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.
Verification test methods of access satellite network for FSS communication earth station ICS 33.060.30 M35 National Standards of People's Republic of China Access to fixed satellite communications service earth station Validation test method of satellite network Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Abbreviations 1 4 Test condition 1 4.1 Test site 1 4.2 Co-Test Antenna 2 4.3 Test equipment and instruments 2 4.4 Outdoor test environment 2 4.5 Satellite frequency selection for test 2 4.6 Test preparation 2 5 Antenna emission pattern verification test method 2 5.1 Antenna near-angle rotation speed and far-angle rotation speed measurement 2 5.2 Other preliminary parameters 3 5.3 Satellite method 3 5.4 Standardized Tower Method 5 6 Calculation method of antenna transmission gain verification test 6 7 Antenna emission cross-polarization isolation verification test method 7 7.1 Verification test method for static transmission cross-polarization isolation of earth station 7 7.2 Mobile platform earth station (used in movement) dynamic emission cross-polarization isolation verification test method 7 8 Mobile platform earth station pointing accuracy, tracking accuracy, off-axis suppression function, maximum uplink capability and PSD control function verification test Method 8 8.1 Mobile platform earth station pointing accuracy verification test method 8 8.2 Tracking accuracy verification test method for mobile platform earth station (used in movement) 10 8.3 Test method for verification of off-axis emission suppression function of mobile platform earth station 11 8.4 Calculation method for verification test of mobile platform earth station's maximum uplink capability 12 8.5 Test method for verification and test of PSD control function of earth station on mobile platform 12 9 Out-of-band radiation verification test method 13 9.1 Verification test method for spurious radiation (without intermodulation products) 13 9.2 Uplink intermodulation noise verification test method 14 10 Modulation characteristic verification test method 15 10.1 Schematic diagram of the test system 15 10.2 Test Step 15 11 Transmitting frequency and power stability verification test method 16 11.1 Schematic diagram of test system 16 11.2 Test Step 16 Reference 17

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This standard is under the jurisdiction of the National Communication Standardization Technical Committee (SAC/TC485). Drafting organizations of this standard. China Satellite Communications Group Co., Ltd., CITIC Digital Media Network Co., Ltd. Beijing Satellite Communications Branch, China Mobile Communications Group Design Institute Co., Ltd., Datang Telecom Technology Industry Group (Telecommunications Science and Technology Research Institute Co., Ltd.), National Radio Regulatory Testing Center, China Academy of Information and Communications Technology, National Radio Monitoring Center Testing Center, China Telecom Consulting and Design Institute Co., Ltd., China United Network Communication Group Co., Ltd., Xi'an Tonghe Electromagnetic Equipment Testing Co., Ltd., Jingxin Communication System (China) Co., Ltd. The main drafters of this standard. Fan Guojiang, Chen Yongchun, Jia Yuxian, Bian Lijun, Huang Yaoming, Zhang Fan, Xu Hongmei, Pan Ji, Wang Ruixin, Lin Lei, Zou Shuhua, Nanji, Huang Zhenxun, Wang Qing.

Introduction

The purpose of this standard is to ensure that the satellite communication earth station performs the network access verification test before entering the domestic satellite network operation. The standardization of the test method facilitates the approval and supervision of the new satellite communication earth station by the national radio management department, and facilitates the prevention of unsatisfactory entry in advance. The satellite communication earth station required by the network technology enters the network operation, so as to prevent it from affecting the existing user communication links and neighboring satellite networks in the satellite network after it enters the network. Inter-satellite networks cause interference, and guide the satellite communication earth station to reach the system index that meets the network access standard. Access to fixed satellite communications service earth station Validation test method of satellite network

1 Scope

This standard specifies the tests for the network access verification test items that the satellite communication earth station should carry out before entering the domestic satellite communication system method. This standard applies to fixed satellite services that use geostationary satellites (GSO) operated by satellite operators in my country. This standard applies to satellite communication earth stations in the C-band and Ku-band, and satellite communication earth stations in other frequency bands can be used as a reference.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 13615-2009 Earth station electromagnetic environmental protection requirements

3 Abbreviations

The following abbreviations apply to this document. CPI. Cross Polarization Isolation EIRP. Equivalent Isotropic Radiated Power (EffectiveIsotropicRadiatedPower) FSS. Fixed Satellite Service (FixedSateliteService) HPA. High Power Amplifier (HighPowerAmplifier) LNA. Low Noise Amplifier (LowNoiseAmplifier) PSD. Power Spectral Density (PowerSpectralDensity) SFD. Saturated Flux Density (SaturatedFluxDensity)

4 Test conditions

4.1 Test site The test site includes the working site of the tested station, the site of the co-testing station and the site of the standard school tower. Each test site meets the following requirements. a) The working site of the station under test should meet GB/T 13615-2009, its antenna pointing to the star should be unobstructed, and the pointing elevation angle should be higher than that of the working side. The upward skyline elevation angle is 5° in C-band and 10° in Ku-band. If there is any unsatisfactory item, it should be clearly stated before the test. For indoor equipment The environment should meet the requirements of the working environment required by the equipment. b) The co-testing station site should meet GB/T 13615-2009, and no harmful interference will enter the test within plus or minus 30° of the pointing direction deviation of the satellite The environment of the system, indoor equipment and test instruments should meet the required working environment requirements. c) When using the standard tower method for the verification test of the earth station antenna access to the network, its antenna has no obstruction to the line-of-sight of the standard tower. The distance between the antenna of the station under test and the calibration tower should meet the requirements of formula (1). L ≥ 2× D2 d2() (1) ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39847-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39847-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 39847-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39847-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.