Circular No. 01/2025/TT-BKHCN dated March 31, 2025 on amendments to some contents of the appendix attached to Circular No. 08/2021/TT-BTTT on the list of license-exempt radio devices and accompanying technical and operational conditions
|
MINISTRY OF
SCIENCE AND TECHNOLOGY |
THE SOCIALIST
REPUBLIC OF VIETNAM |
|
No. 01/2025/TT-BKHCN |
Hanoi, March 31, 2025 |
CIRCULAR
ON AMENDMENTS TO SOME CONTENTS OF THE APPENDIX ATTACHED TO CIRCULAR NO. 08/2021/TT-BTTTT DATED OCTOBER 14, 2021 OF THE MINISTER OF SCIENCE AND TECHNOLOGY ON THE LIST OF LICENSE-EXEMPT RADIO DEVICES AND ACCOMPANYING TECHNICAL AND OPERATIONAL CONDITIONS
Pursuant to the Law on Radio Frequencies dated November 23, 2009; the Law on amendments to some articles of the Law on Radio Frequencies dated November 09, 2022;
Pursuant to Decree No. 55/2025/ND-CP dated March 02, 2025 of the Government on functions, responsibilities, jurisdiction and organizational structure of the Ministry of Science and Technology;
Pursuant to Decision No. 71/2013/QD-TTg dated November 21, 2013 of the Prime Minister on the National frequency spectrum planning; Decision No. 38/2021/QD-TTg dated December 29, 2021 of the Prime Minister on amendments to some articles of Decision No. 71/2013/QD-TTg dated November 21, 2013 of the Prime Minister on the National frequency spectrum planning amended by Decision No. 02/2017/QD-TTg dated January 17, 2017 of the Prime Minister; Decision No. 15/2024/QD-TTg dated October 04, 2024 of the Prime Minister on amendments to some articles of Decision No. 71/2013/QD-TTg dated November 21, 2013 of the Prime Minister on the National frequency spectrum planning amended by Decision No. 38/2021/QD-TTg dated December 29, 2021 of the Prime Minister;
At the request of the Director General of the Department of the Authority of Radio Frequency Management;
The Minister of Science and Technology promulgates the Circular on amendments to some contents of the Appendix attached to Circular No. 08/2021/TT-BTTTT dated October 14, 2021 of the Minister of Science and Technology on the list of license-exempt radio devices and accompanying technical and operational conditions (hereinafter referred to as “Circular No. 08/2021/TT-BTTTT”).
Article 1. Amendments to some contents of Appendices 2, 10 and 16 attached to Circular No. 08/2021/TT-BTTTT in accordance with Appendix I attached to this Circular.
Article 2. Implementation
1. This Circular comes into force from May 15, 2025.
2. Chief of Office, Director General of the Department of the Authority of Radio Frequency Management, heads of authorities and units affiliated to the Ministry of Science and Technology, and relevant organizations, individuals are responsible to implement this Circular.
3. Organizations and individuals shall report any issues arise during the implementation to the Ministry of Science and Technology (Authority of Radio Frequency Management) for guidelines, or consideration and resolution./.
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MINISTER |
APPENDIX I
(Attached to Circular No. 01/2025/TT-BKHCN dated March 31, 2025 of the Minister of Science and Technology)
1. Some contents of Appendix 2 attached to Circular No. 08/2021/TT-BTTTT are amended as follows:
a) Amendments to No. 8 in clause 1:
“
|
No. |
FREQUENCY BAND |
TYPE OF RADIO DEVICES |
MAIN EMISSION |
SPURIOUS EMISSION OR UNWANTED EMISSION |
|
|
A |
B |
C |
D |
|
8. |
315 ÷ 400 kHz |
Wireless Power Transfer (WPT) |
≤ - 15 dBµA/m measured at 10m distance (in the 10 kHz bandwidth) |
According to spurious emission limit 1 |
”;
b) Addition of No. 54a after No. 54 in clause 1:
“
|
No. |
FREQUENCY BAND |
TYPE OF RADIO DEVICES |
MAIN EMISSION |
SPURIOUS EMISSION OR UNWANTED EMISSION |
|
|
A |
B |
C |
D |
|
54a. |
5925 ÷ 6425 kHz |
Wireless Local Area Network or Radio Local Area Network (WLAN/ RLAN) |
In accordance with Appendix 10 |
- Spurious emission: According to spurious emission limit 25 - Unwanted emission: According to unwanted emission limit 3 |
”;
c) Annulment of No. 9 in clause 1;
d) Addition of points 2.25 and 2.26 after point 2.24 in clause 2:
“2.25 Spurious emission limit 25: (comply with spurious emission limits of transmitters specified in Standard ETSI EN 303 687 V1.1.1 (Note 3)):
|
Frequency |
Maximum power |
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 MHz |
-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 emission at the frequency 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 (require a frequency hopping mechanism based on at least 15 channels to operate at Power spectral density (PSD) > 1 dBm/MHz) |
Out-of-band emission at the frequency below 5935 MHz ≤ -45 dBm/MHz |
”.
2. Frequency band “5925 ÷ 6425 MHz” is added to the Wireless Local Area Network or Radio Local Area Network (WLAN/ RLAN) in Appendix 10 attached to Circular No. 08/2021/TT-BTTTT 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 |
- Device is for indoor use or used in the environment where it is protected from electromagnetic waves. - Operators/users of WLAN/RLAN devices must strictly comply with regulations of laws on telecommunications, information safety and data protection. - Device shall not be used for devices, system of Unmanned Aircraft Systems (UAS) - Drones. - Frequency band 5925 ÷ 6425 MHz shall be allocated as a guard band. |
|
≤ 25 mW EIRP and Power spectral density (PSD) ≤ 1 dBm/MHz EIRP
|
According to spurious emission limit 25 |
- Device is for indoor use or outdoor use. - Operators/users of WLAN/RLAN devices must strictly comply with regulations of laws on telecommunications, information safety and data protection. - Device shall not be used for devices, system of Unmanned Aircraft Systems (UAS) - Drones. - Frequency band 5925 ÷ 5945 MHz shall be allocated as a guard band. |
|
|
≤ 25 mW EIRP and Power spectral density (PSD) ≤ 10 dBm/MHz EIRP for narrowband emissions with bandwidth ≤ 20 MHz (require a frequency hopping mechanism based on at least 15 channels to operate at Power spectral density (PSD) > 1 dBm/MHz) |
According to spurious emission limit 25 |
- Device is for indoor use or outdoor use. - Operators/users of WLAN/RLAN devices must strictly comply with regulations of laws on telecommunications, information safety and data protection. - Device shall not be used for devices, system of Unmanned Aircraft Systems (UAS) - Drones. - Frequency band 5925 ÷ 6425 MHz shall be allocated as a guard band. |
”.
3. Frequency bands “326,5 kHz, 340 kHz” and “353 ÷ 373,5 kHz” are changed into frequency band “315 ÷ 400 kHz” of the wireless power transfer in Appendix 16 attached to Circular No. 08/2021/TT-BTTTT as follows:
“
|
Frequency band |
Main emission |
Spurious emission |
Other conditions |
|
315 ÷ 400 kHz |
≤ - 15 dBµA/m measured at 10m distance (in the 10 kHz bandwidth) |
According to spurious emission limit 1 |
- Device uses inductive loop technology. - Device must not be installed at a fixed outdoor location or connected to an antenna which is installed at a fixed outdoor location. - Device must not be used on board the aircraft. |
”.
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