Guidance on EMC Testing for Fixed Radio Transmission Equipment and Ancillary Equipment in Vietnam According to QCVN 114:2017/BTTTT

EMC Testing for Fixed Radio Transmission Equipment and Ancillary Equipment in Vietnam is essential as these devices serve as vital infrastructure in telecommunications networks, supporting trunking, mobile communication station connectivity, and transmission lines in challenging terrains. Regulating emission levels and maintaining the operational stability of these devices is fundamental to radio frequency spectrum safety and national network integrity.

Under current regulations, conducting EMC testing for fixed radio transmission equipment and ancillary equipment in Vietnam according to QCVN 114:2017/BTTTT is a compulsory compliance step. This process mitigates the risk of interference and guarantees that various radio-frequency transmitting devices can coexist efficiently within the shared electromagnetic environment.

Table of contents

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I. Overview of Fixed Radio Transmission Equipment and Ancillary Equipment in the Vietnam Market

EMC Testing for Fixed Radio Transmission Equipment and Ancillary Equipment in Vietnam remains a priority as these technologies are widely deployed in point-to-point microwave links. They serve as essential connectors for base stations and network hubs in mountainous and island regions where terrain challenges exist. While fiber optics are prevalent, fixed radio systems are indispensable for backup infrastructure, guaranteeing seamless communication during network outages.

In addition to primary transmitters, various ancillary equipment—including fixed antennas, filters, amplifiers, and power modules—are integrated into these systems. Because these components can emit electromagnetic noise or suffer from external interference in dense telecommunication hubs, rigorous technical evaluation is required.

Performing EMC testing for fixed radio transmission equipment and ancillary equipment in Vietnam according to QCVN 114:2017/BTTTT is a critical step in assessing emission levels and electromagnetic immunity. Adhering to these national standards ensures the operational reliability of transmission networks, prevents harmful interference, and supports the effective management of the national radio frequency spectrum.

Guidance on EMC Testing for Fixed Radio Transmission Equipment and Ancillary Equipment in Vietnam According to QCVN 114:2017/BTTTT

II. Guidance on EMC Testing for Fixed Radio Transmission Equipment and Ancillary Equipment in Vietnam According to QCVN 114:2017/BTTTT

1. Scope of Application

Pursuant to QCVN 114:2017/BTTTT, fixed radio transmission equipment and ancillary equipment in analog and digital fixed services, such as fixed point-to-point and point-to-multipoint systems, must satisfy the electromagnetic compatibility requirements specified in this technical regulation.

2. Technical Requirements

QCVN 114:2017/BTTTT specifies electromagnetic compatibility (EMC) requirements for fixed radio transmission equipment and ancillary equipment, including the following regulations on emission and immunity:

2.1. EMC Emission Requirements

EMC emission requirements at the ports of radio equipment and/or associated ancillary equipment are specified in Table 1 of QCVN 18:2014/BTTTT. For radio transmission equipment in the fixed service, only the requirements for radio equipment and ancillary equipment intended for fixed use in Table 1 of QCVN 114:2017/BTTTT shall apply.

Table 1 – Specific conditions for EMC emission measurements

Reference to the clauses in QCVN 18:2014/BTTTT	Product-related conditions that supplement or modify the measurement conditions in Clause 2.1 of QCVN 18:2014/BTTTT
2.1.3. Limits; Enclosure of ancillary equipment measured on a stand-alone basis	Note: Radiated emissions from the enclosure of radio equipment must satisfy the requirements for the enclosure of ancillary equipment as specified in Clause 2.1.3 of QCVN 18:2014/BTTTT.
2.1.4. Limits; DC mains power input/output ports	Note: Emission limits for DC power ports shall apply Table 3 of QCVN 18:2014/BTTTT.

Note: Specific conditions specified in Table 1 below relate to EMC emission measurements and are regulated in Clause 2.1 of QCVN 18:2014/BTTTT and Clauses 2.3 and 2.4 of QCVN 114:2017/BTTTT.

2.2. Technical requirements for immunity

EMC immunity requirements at the ports of radio equipment and/or associated ancillary equipment are specified in Table 4 of QCVN 18:2014/BTTTT. Specific conditions are specified in Table 2 below, relating to the immunity test methods and performance criteria specified in Clause 2.2 of QCVN 18:2014/BTTTT and Clauses 2.3 and 2.5 of QCVN 114:2017/BTTTT.

Table 2 – Specific conditions for EMC immunity measurements

Reference to the clauses in QCVN 18:2014/BTTTT	Product-related conditions that supplement or modify the measurement conditions in Clause 2.2 of QCVN 18:2014/BTTTT
2.2.8: Performance criteria: Voltage dips and interruptions	Voltage interruptions: For voltage interruptions, temporary loss of function is allowed, provided that the function is self-recovering or can be restored by the operation of the controls.

Note: For radio transmission equipment in the fixed service, only the section containing requirements for radio equipment and ancillary equipment intended for fixed use in Table 4 of QCVN 18:2014/BTTTT shall apply.

2.3. Performance criteria requirements

Fixed radio transmission equipment and ancillary equipment must satisfy the performance criteria according to QCVN 114:2017/BTTTT, specifically:

Performance criteria for continuous phenomena applied to transmitters (CT) and receivers (CR);
Performance criteria for transient phenomena applied to transmitters (TT) and receivers (TR);
Specific performance criteria (including criteria for Digital signal ports, Analogue voice frequency signal ports, Ethernet and packet data interfaces, Service and maintenance interfaces, Synchronization interfaces, Remote alarm interfaces);
Performance criteria for ancillary equipment tested independently.

Dan-Tem-QCVN-114

3. Testing Costs and Lead Time

Costs and lead time for EMC testing for fixed radio transmission equipment and ancillary equipment in Vietnam in accordance with QCVN 114:2017/BTTTT are publicly listed by Phuc Gia®. You may review the testing quotation for telecommunications and information technology electrical-electronic equipment in the Quotation for Testing and Certification Services or contact Phuc Gia® for detailed consultation.

4. Where to conduct electromagnetic compatibility testing according to QCVN 114:2017/BTTTT?

4.1. Regulations on qualified testing and certification bodies

Pursuant to Article 5 of Consolidated Document 02/2020/VBHN-BTTTT – Regulations on conformity certification and declaration of conformity for specialized information technology and communications products and goods, the testing units serving certification and declaration of conformity are regulated as follows:

Testing units serving conformity certification activities are designated or recognized testing units.

Testing units serving declaration of conformity activities are designated or recognized testing units, or units that have registered for testing operations under Decree No. 107/2016/NĐ-CP dated July 1, 2016, of the Government providing for business conditions for conformity assessment services.

Testing units shall be responsible to the Regulatory Authority for the accuracy of testing results. Testing results do not substitute for the Certificate of Conformity or the Declaration of Conformity.

4.2. Phuc Gia® – A Reputable Testing Organization for Telecommunications and Information Technology Equipment in Vietnam

Phuc Gia Laboratory Corporation (Phuc Gia®) has been designated by the Ministry of Science and Technology to perform testing for telecommunications and information technology equipment according to 24 Vietnam Technical Regulations for various critical equipment groups. This serves the quality management of products and goods with the potential to cause unsafety under the Ministry’s management responsibility, pursuant to Decision No. 2899/QĐ-BKHCN and Decision No. 228/QĐ-BTTTT.

Accordingly, Phuc Gia® is designated to conduct EMC testing for fixed radio transmission equipment and ancillary equipment in Vietnam, in accordance with QCVN 114:2017/BTTTT.

Phuc Gia® is also the first unit to be accredited by all three accreditation bodies (BoA, AOSC, VACI) as meeting the ISO/IEC 17025:2017 standard. The testing facility spans up to 5,000 m² and is equipped with a synchronized system of modern measurement and inspection devices, serving tests for electrical safety, EMC, energy efficiency, RF, SAR, and many other technical categories.

Complementing this is a team of nearly 100 staff members, engineers, and technical experts who are highly selected and intensively trained to meet the stringent requirements of testing, certification, and conformity assessment activities across multiple technical fields.