Circular 01/2025/TT-BKHCN amend Appendices to Circular 08/2021/TT-BTTTT providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions

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ATTRIBUTE

Circular No. 01/2025/TT-BKHCN dated March 31, 2025 of the Ministry of Science and Technology amending and supplementing a number of provisions in the Appendices to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions
Issuing body: Ministry of Science and TechnologyEffective date:
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Official number:01/2025/TT-BKHCNSigner:Nguyen Manh Hung
Type:CircularExpiry date:Updating
Issuing date:31/03/2025Effect status:
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Effect status: Known

THE MINISTRY OF SCIENCE AND TECHNOLOGY

______________

No. 01/2025/TT-BKHCN

 THE SOCIALIST REPUBLIC OF VIETNAM

Independence - Freedom - Happiness

_____________________

Hanoi, March 31, 2025

 CIRCULAR

Amending and supplementing a number of provisions in the Appendices to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions

___________________

 

Pursuant to the Law on Radio Frequencies dated November 23, 2009, and the Law Amending and Supplementing a Number of Articles of the Law on Radio Frequencies dated November 9, 2022;

Pursuant to Government's Decree No. 55/2025/ND-CP dated March 2, 2025, defining the functions, tasks, powers and organizational structure of the Ministry of Science and Technology;

Pursuant to the Prime Minister’s Decision No. 71/2013/QD-TTg of November 21, 2013, promulgating the Master Plan on National Radio Frequency Spectrum; the Prime Minister's Decision No. 38/2021/QD-TTg dated December 29, 2021, amending and supplementing a number of articles of the Prime Minister’s Decision No. 71/2013/QD-TTg of November 21, 2013, promulgating the Master Plan on National Radio Frequency Spectrum, which was amended and supplemented under the Prime Minister’s Decision No. 02/2017/QD-TTg of January 17, 2017; the Prime Minister’s Decision No. 15/2024/QD-TTg dated October 4, 2024, amending and supplementing a number of articles of the Prime Minister’s Decision No. 71/2013/QD-TTg of November 21, 2013, promulgating the Master Plan on National Radio Frequency Spectrum, which was amended and supplemented under the Prime Minister’s Decision No. 38/2021/QD-TTg dated December 29, 2021;

At the proposal of the Director General of the Authority of Radio Frequency Management,

The Minister of Science and Technology hereby promulgates the Circular amending and supplementing a number of provisions in the Appendices to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions.

 

Article 1. To amend and supplement a number of provisions in Appendices 2, 10 and 16 to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions according to Appendix I to this Circular.

Article 2. Effect

1. This Circular takes effect from May 15, 2025.

2. The Chief of the Office, the Director General of the Authority of Radio Frequency Management, and heads of agencies and units under the Ministry of Science and Technology, and related organizations and individuals shall implement this Circular.

3. Any difficulties arising in the course of implementation should be promptly reported to the Ministry of Science and Technology (the Authority of Radio Frequency Management) for instructions or consideration and settlement./.

 

 

THE MINISTER

 

 

Nguyen Manh Hung

 

 

Appendix I

(Attached to Circular No. 01/2025/TT-BKHCN dated March 31, 2025, of the Minister of Science and Technology)

 

1. To amend and supplement a number of provisions in Appendix 2 to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions, as follows:

a) To amend and supplement No. 8 of Clause 1 as follows:

No.

FREQUENCY BAND

TYPE OF RADIO DEVICE

MAIN EMISSION

SPURIOUS OR UNWANTED EMISSION

 

A

B

C

D

8.

315 ¸ 400 kHz

Wireless power transfer device

≤ -15 dBµA/m measured at 10m distance (in a bandwidth of 10 kHz)

According to spurious emission limit 1

”;

b) To add No. 54a after No. 54 of Clause 1 as follows:

No.

FREQUENCY BAND

TYPE OF RADIO DEVICE

MAIN EMISSION

SPURIOUS OR UNWANTED EMISSION

 

A

B

C

D

54a.

5925 ¸ 6425 MHz

Wireless Local Area Network (WLAN / RLAN)

As prescribed in Appendix 10

- Spurious emission: According to spurious emission limit 25

- Unwanted emission: According to unwanted emission limit 3

”;

c) To annul No. 9 of Clause 1;

d) To add Points 2.25 and 2.26 after Point 2.24 of Clause 2 as follows:

“2.25 Spurious emission limit 25: (To ensure compliance with the spurious emission limits of transmitters in accordance with ETSI EN 303 687 V1.1.1 standard (Note 3))

Frequency

Maximum power

Measurement bandwidth

30 MHz  f  87,5 MHz

-36 dBm

100 kHz

87.5 MHz  f  118 MHz

-54 dBm

100 kHz

118 MHz  f  174 MHz

-36 dBm

100 kHz

174 MHz  f  230 MHz

-54 dBm

100 kHz

230 MHz  f  470 MHz

-36 dBm

100 kHz

470 MHz  f  694 MHz

-54 dBm

100 kHz

694 MHz  f  1 GHz

-36 dBm

100 kHz

1 GHz  f  26 GHz

-30 dBm

1 MHz

2.26 Unwanted emission limit 3:

Frequency band

Main emission

Unwanted emission

5925 ¸ 6425 MHz

≤ 200 mW EIRP and power spectral density (PSD)
≤ 10 dBm/MHz EIRP

Out-of-band emissions at frequencies below 5935 MHz  -22 dBm/MHz

5925 ¸ 6425 MHz

≤ 25 mW EIRP and power spectral density (PSD)
≤ 1 dBm/MHz EIRP

Or

≤ 25 mW EIRP and power spectral density (PSD) ≤ 10 dBm/MHz EIRP for narrowband emissions with bandwidth ≤ 20 Mhz (requiring frequency hopping mechanism based on at least 15 channels when operating at power spectral density (PSD) > 1 dBm/MHz)

Out-of-band emissions at frequencies below 5935 MHz  -45 dBm/MHz

”.

2. To add the frequency band “5925¸ 6425 MHz” for wireless local area network devices (WLAN/RLAN devices) in Appendix 10 to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions, as follows:

Frequency band

Main emission

Spurious emission

Other conditions

5925 ¸ 6425 MHz

≤ 200 mW EIRP and power spectral density (PSD)
≤ 10 dBm/MHz EIRP

According to spurious emission limit 25

- Indoor use or use in environments with electromagnetic shielding.

- Organizations and individuals deploying or using WLAN/RLAN devices shall comply with relevant laws on telecommunications, information security, and data protection.

- Not permitted for use on unmanned aircraft systems (UAS – Drones).

- The frequency range of 5925 ¸ 5945 MHz is designated as a protection band.

≤ 25 mW EIRP and power spectral density (PSD)
≤ 1 dBm/MHz EIRP

 

 

According to spurious emission limit 25

- Indoor and outdoor use permitted.

- Organizations and individuals deploying or using WLAN/RLAN devices shall comply with relevant laws on telecommunications, information security, and data protection.

- Not permitted for use on unmanned aircraft systems (UAS – Drones).

- The frequency range of 5925 ¸ 5945 MHz is designated as a protection band.

≤ 25 mW EIRP and power spectral density (PSD) ≤ 10 dBm/MHz EIRP for narrowband emissions with bandwidth ≤ 20 Mhz (requiring frequency hopping mechanism based on at least 15 channels when operating at power spectral density (PSD) > 1 dBm/MHz)

According to spurious emission limit 25

- Indoor and outdoor use permitted.

- Organizations and individuals deploying or using WLAN/RLAN devices shall comply with relevant laws on telecommunications, information security, and data protection.

- Not permitted for use on unmanned aircraft systems (UAS – Drones).

- The frequency range of 5925 ¸ 5945 MHz is designated as a protection band.

”.

3. To replace the frequency band “326,5 kHz, 340 kHz” and “353 ¸ 373,5 kHz” with “315 ¸ 400 kHz” for wireless power transfer device in Appendix 16 to Circular No. 08/2021/TT-BTTTT dated October 14, 2021, of the Minister of Information and Communications, providing the list of radio frequency use license-exempt radio devices and accompanying technical and operational conditions, as follows:

Frequency band

Main emission

Spurious emission

Other conditions

315 ¸ 400 kHz

≤ -15 dBµA/m measured at 10m distance (in a bandwidth of 10 kHz)

According to spurious emission limit 1

- The device uses inductive loop technology.

- The device must not be installed in fixed outdoor locations or connected to antennas fixed outdoors.

- The device must not be used on aircraft.

”.

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