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JJF 1885-2020 English PDF

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US$459.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1885-2020: Calibration Specification for RF and Microwave Power Meters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1885-2020	459	Add to Cart	4 days	Calibration Specification for RF and Microwave Power Meters	Valid

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Basic data

Standard ID: JJF 1885-2020 (JJF1885-2020)
Description (Translated English): Calibration Specification for RF and Microwave Power Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Classification of International Standard: 17.220
Word Count Estimation: 20,215
Date of Issue: 2020-11-26
Date of Implementation: 2021-05-26
Regulation (derived from): Announcement No. 57 (2020) of the State Administration for Market Regulation
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of various types of radio frequency and microwave power meters with a frequency range of 9 kHz to 50 GHz and a power range of -70 dBm to 20 dBm. The calibration of radio frequency and microwave power meters in other frequency ranges can be used as a reference.

JJF 1885-2020: Calibration Specification for RF and Microwave Power Meters

---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 RF and Microwave Power Meters National Metrology Technical Specifications of the People's Republic of China Radio frequency and microwave power meter calibration specifications 2020-11-26 release 2021-05-26 implementation Issued by the State Administration for Market Regulation Radio frequency and microwave power meter calibration specifications PowerMeters Focal point: National Radio Metrology Technical Committee Main drafting unit: China Institute of Metrology 203 Institute of the Second Academy of China Aerospace Science and Industry Corporation Participated in the drafting unit: Zhejiang Academy of Quality Inspection Science This specification entrusts the National Radio Measurement Technical Committee to be responsible for interpretation The main drafters of this specification: Xinmeng Liu (China Institute of Metrology) Yang Xujun (203 Institute of the Second Academy of China Aerospace Science and Industry Corporation) Hai Xingfang (China Institute of Metrology) Participating drafters: Ye Zhongmin (Zhejiang Academy of Quality Inspection Science) Liu Ting (203 Institute of the Second Academy of China Aerospace Science and Industry Corporation)

Introduction (Ⅱ) 1 scope (1) 2 Overview (1) 3 Measurement characteristics (1) 3:1 Reference source power(1) 3:2 Calibration factor (K) (1) 3:3 Linearity (1) 3:4 Voltage standing wave ratio (1) 4 Calibration conditions (1) 4:1 Environmental conditions (1) 4:2 Calibration equipment (1) 5 Calibration items and calibration methods (2) 5:1 Calibration items (2) 5:2 Appearance and working normality inspection (2) 5:3 Reference source power(3) 5:4 Calibration factor (3) 5:5 Linearity (4) 5:6 Voltage standing wave ratio (5) 6 Calibration result expression (5) 7 Re-calibration interval (6) Appendix A Original Record Format (7) Appendix B Internal page format of calibration certificate (9) Appendix C Examples of Evaluation of Calibration Uncertainty for Major Items (10)

Introduction

This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" was compiled: This specification is released for the first time: Radio frequency and microwave power meter calibration specifications

1 Scope

This specification is applicable to various types with a frequency range of 9kHz~50GHz and a power range of -70dBm~20dBm Types of radio frequency and microwave power meter calibration, other frequency range radio frequency and microwave power meter calibration can be used as a reference:

2 overview

The RF and microwave power meter (hereinafter referred to as the power meter) consists of the conversion part and Corresponding measurement and indicator components are used to convert radio frequency or microwave signals into DC or low frequency signals to be measured And the principle of indication completes the measurement of radio frequency and microwave power:

3 Metrological characteristics

3:1 Reference source power Output power: 1mW (50MHz); Maximum allowable error of output power: ±0:5%: 3:2 Calibration factor (K) Frequency range: 9kHz~50GHz; Calibration factor measurement uncertainty: 0:5%~5% (k=2): 3:3 Linearity Calibration frequency: 50MHz; Power range: -20dBm~ 10dBm; Linearity measurement uncertainty: 0:04dB~0:1dB (k=2): 3:4 Voltage standing wave ratio Frequency range: 9kHz~50GHz; Measurement uncertainty: 0:02~0:03 (k=2): Note: The above technical indicators are not for eligibility judgment, only for reference:

4 Calibration conditions

4:1 Environmental conditions Ambient temperature: (23±5)℃, the temperature fluctuation does not exceed 1℃ during calibration; Relative humidity: not more than 80%; Power requirements: voltage (220 ± 11) V, frequency (50 ± 1) Hz; Other: There is no mechanical vibration and electromagnetic interference that affect the normal operation of the calibration system: 4:2 Equipment for calibration 4:2:1 Signal generator ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1885-2020_English be delivered?

Answer: Upon your order, we will start to translate JJF 1885-2020_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 JJF 1885-2020_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1885-2020_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.