SJ 20953-2005General specification for duplex frequency hopping radio (English PDF)
双工跳频电台通用规范
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for SJ 20953-2005 in 30 minutes.
Issued by
Ministry of Industry and Information Technology
Level / Type
National · Mandatory
Issue date
January 1, 2005
Implementation date
January 1, 2005
Scope
SJ 20953-2005 is the English-translated version of 双工跳频电台通用规范.
SJ 20953-2005 is the Chinese standard "General specification for duplex frequency hopping radio".
Found what you need?
Document preview — SJ 20953-2005
National Standard of the People's Republic of China
- ICS
- 33.060
Contents
- [Preview only]
- 1 Scope
- 2 Normative References
- 2.1 Terms
- 3 Terms and Definitions
- 4 Overview
- 4.1 General requirements
- 5 Technical Requirements
- 6 Calibration conditions
- 6.1 Environmental conditions
- 6.2 Measurement standards and other equipment
- 7 Calibration items and calibration methods
- 7.1 Calibration Items
- 7.2 Calibration method
- 8 Expression of calibration results
- 9 Recalibration interval
1 Foreword
SJ 20953-2005 is issued by Ministry of Industry and Information Technology.
The SJ prefix, without a suffix, marks a mandatory standard: within its scope, compliance is required.
The document runs to 15 pages in English translation.
2 Scope Preview
SJ 20953-2005 falls under ICS 33.060, in the field of telecommunications.
This catalogue holds 26 other SJ standards in that field.
In this catalogue, SJ standards carry edition years from 1965 to 2021.
3 About this standard
Sector: Electronics
Issued by: Ministry of Industry and Information Technology
English translation: about 15 pages (approximate)
4 Classification and status
International classification (ICS): 33.060
Chinese Standard Classification (CCS): M 36
Prefix SJ: mandatory standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
How to Download SJ 20953-2005
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
SJ 20382-2021 — Specification for wedge locking devices
SJ 20637-2021 — Specification for aluminum nitride powder for military electronic ceramics
SJ 21473.6-2021 — Methods of measuring electromagnetic immunity of military integrated circuits - Part 6: Impulse immunity measurement - Synchronous transient injection method
Secure payment via Stripe
Payments accepted
SJ 20953-2005
$435.00