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MINISTRY OF
SCIENCE AND TECHNOLOGY
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THE SOCIALIST
REPUBLIC OF VIETNAM
Independence - Freedom – Happiness
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No.
01/2025/TT-BKHCN
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Hanoi, March 31,
2025
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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.
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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./.
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)
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a) Amendments to No. 8 in clause 1:
“
No.
FREQUENCY BAND
TYPE OF RADIO
DEVICES
MAIN EMISSION
SPURIOUS
EMISSION OR UNWANTED EMISSION
A
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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:
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No.
FREQUENCY BAND
TYPE OF RADIO
DEVICES
MAIN EMISSION
SPURIOUS
EMISSION OR UNWANTED EMISSION
A
B
C
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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:
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Frequency
Maximum power
Bandwidth
30 MHz ≤ f <
87,5 MHz
-36 dBm
100 kHz
87,5 MHz ≤ f <
118 MHz
-54 dBm
100 kHz
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-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
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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
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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
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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
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- 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.
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- 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:
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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.
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”.