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MINISTRY OF
INFORMATION AND COMMUNICATIONS
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SOCIALIST
REPUBLIC OF VIETNAM
Independence – Freedom – Happiness
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No.:
18/2018/TT-BTTTT
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Hanoi, December
20, 2018
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CIRCULAR
AMENDMENTS
TO THE CIRCULAR NO.46/2016/TT-BTTTT DATED DECEMBER 26, 2016 BY THE MINISTER OF
INFORMATION AND COMMUNICATIONS PROVIDING LIST OF LICENSE-EXEMPT RADIO DEVICES
AND ACCOMPANYING TECHNICAL AND OPERATIONAL CONDITIONS
Pursuant to the Law on radio frequency dated
November 23, 2009;
Pursuant to the Government’s Decree No.
17/2017/ND-CP dated February 17, 2017 defining functions, tasks, powers and
organizational structure of the Ministry of Information and Communications;
Pursuant to the Decision No. 71/2013/QD-TTg
dated November 21, 2013 by the Prime Minister promulgating the Plan for
national radio spectrum as amended by the Decision No. 02/2017/QD-TTg dated
January 17, 2017 by the Prime Minister;
At the request of the Director of the Authority
of Radio Frequency Management;
The Minister of Information and Communications
promulgates a Circular providing amendments to the Circular No.
46/2016/TT-BTTTT dated December 26, 2016 by the Minister of Information and
Communications providing the list of license-exempt radio devices and
accompanying technical and operational conditions.
Article 1. Amendments to the
Circular No. 46/2016/TT-BTTTT dated December 26, 2016 by the Minister of
Information and Communications providing the list of license-exempt radio
devices and accompanying technical and operational conditions
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a) Clause 1 is amended as follows:
“1. Short Range Device refers to a radio
transmitter or a radio transceiver which provides either unidirectional or
bi-directional communication with low capability of causing harmful
interference to other radio equipment. Types of short rang devices are
listed in the ordinal number 1 of the Appendix 1 enclosed herewith.”
b) Clause 5 is amended as follows:
“5. Radio Frequency Identification (RFID)
RFID uses the radio waves to automatically
identify, manage and track goods, people and animals and have other
applications. RFID includes two separate components which are connected
to each other through the radio interface as follows:
- The Radio Frequency Tag (RF tag) has an
electronic chip, with or without power source, and is attached to the object to
be identified. The electronic chip contains information about the object
to be identified.
- The Radio Frequency Reader (RF reader) generates
signal at a determined frequency to activate the RF tag and read its response.
The RF reader shall transmit the information received from the RF tag to the
data processing system.
RFID has many applications in the fields of
distribution, transportation and retailing, healthcare services, traffic or is
used in mobile applications (e.g. automatic display and search for advertising
information). Short range RFIDs prescribed in this Circular exclude nonstop
electronic toll collection systems that apply RFID using the 920-923 MHz
frequency band with the radiated power above 500 mW ERP.”
c) Clause 7 is amended as follows:
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Wireless Audio Devices refer to devices that use
radio waves to transmit sound in a short distance. There are typical types of
Wireless Audio Devices such as wireless lavalier microphone, wireless handset
microphone, wireless earphones, personal FM transmitter and hearing aids.
Short range wireless audio devices prescribed in
this Circular exclude wireless audio transmitters using the 470-694 MHz
frequency band, with the radiated power above 30 mW ERP, used in radio and
television sector.”
d) Clause 11 is amended as follows:
“11. Wireless Video Transmitter/Transceiver
Wireless Video Transmitter/Transceiver is used to
send image data (or image and sound data) to the processing system through the
radio interface.
Typical types of wireless video
transmitters/transceivers are wireless webcam, wireless camera and wireless
video transmitters through computer USB port.”
dd) Clause 15 is amended as follows:
“15. Automotive Radar, Radar sensor or Road
Transport and Traffic Telematics refer to short-range radar that is used in
traffic communication applications (road or railway) such as cruise control,
detection, warning and avoidance of collisions between vehicles and surrounding
objects.”
2. Article 4 is amended as
follows:
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2. Short range radio devices that are on the List
enclosed herewith but fail to meet frequency requirements and technical
requirements laid down herein cannot be used in Vietnam.
3. Organizations and individuals may only use,
manufacture or import short range devices which can operate at different
radiated powers or different frequency bands or a wide operating frequency
range, including the cases inconsistently with regulations herein, for use in
Vietnam when parameters, including operating frequency and radiated power, of
these devices are set up in accordance with regulations herein. Relevant
organizations and individuals shall assume responsibility for the installation
of operating frequency and radiated power inconsistently with regulations
herein."
3. Addition of Clause 1a to
Article 6 on transition provisions:
“1a. Organizations and individuals that use,
manufacture or import RFIDs operating within the 866-868 MHz frequency band for
use in Vietnam before the effective date of this Circular may continue using
such devices but must stop using such devices if they cause harmful
interference to radio devices granted the radio frequency license.”
Article 2. Appendixes enclosed
with the Circular No. 46/2016/TT-BTTTT are amended by the Appendix A enclosed
herewith.
Article 3. Implementation
1. This Circular comes into force from February 12,
2019.
2. The Chief of the Ministry's Office, the Director
of the Authority of Radio Frequency Management, heads of affiliates of the
Ministry of Information and Communications, and relevant organizations and
individuals shall implement this Circular.
3. Difficulties that arise during the
implementation of this Circular should be reported to the Ministry of
Information and Communications (via the Authority of Radio Frequency
Management) for consideration./.
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MINISTER
Nguyen Manh Hung
APPENDIX A
AMENDMENTS TO APPENDIXES ENCLOSED WITH THE CIRCULAR NO.
46/2016/TT-BTTTT
(Enclosed with the Circular No. 18/2018/TT-BTTTT dated December 20, 2018 by
the Minister of Information and Communications)
1. Amending Point 1.13 of the Appendix 1 and adding
Point 1.15 to the Appendix 1 as follows:
No.
Type of radio
device
1.13
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1.15
Short range devices proving links between the
tracks and the trains
2. Adding ordinal numbers 3a, 6a, 8a, 10a, 20a,
41a, 51a and amending ordinal numbers 39, 54 and 55 of the Appendix 2:
a) Addition of ordinal numbers 3a, 6a, 8a, 10a,
20a, 41a, 51a:
No.
Frequency band
Radio device or
application
Main emission
Spurious
emission
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A
B
C
D
3a.
148,5 ÷ 190 kHz
Inductive loop (used in medical sector)
≤ 30 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1
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148,5 ÷ 190 kHz
Inductive loop
≤ -15 dBµA/m, measured at distance of 10 m (in a
bandwidth of 10 kHz)
According to spurious emission limit 1
6a.
3.234 ÷ 5.234 kHz
Short range devices proving links between the
tracks and the trains
≤ 9 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1a
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10.200 ÷ 11.000 kHz
Inductive loop
≤ 9 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1
10a.
26.957 ÷ 27.283 kHz
Short range devices proving links between the
tracks and the trains
≤ 42 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1a
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121,5 MHz
Emergency Position Indicating Radio Beacon
(EPIRB) (having radio positioning feature at the frequency of 121,5 MHz)
≤ 100 mW ERPEP (peak effective radiated power)
According to spurious emission limit 11
41a.
1795 ÷ 1800 MHz
Wireless audio device
≤ 20 mW EIRP;
≤ 50 mW EIRP (for wireless lavalier audio
devices)
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51a.
24 ÷ 24,25 GHz
Automotive Radar, Radar sensor or Road Transport
and Traffic Telematics
≤ 100 mW EIRP
According to spurious emission limit 7
b) Amending ordinal numbers 39, 54 and 55 as
follows:
No.
Frequency band
Radio device or
application
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Spurious
emission
A
B
C
D
39.
918 ÷ 923 MHz
Radio frequency identification
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According to spurious emission limit 2
54.
76 ÷ 77 GHz
Automotive Radar, Radar sensor or Road Transport
and Traffic Telematics
≤ 316,23 W EIRP (at the bandwidth of 50 MHz)
According to spurious emission limit 7
55.
77 ÷ 81 GHz
Automotive Radar, Radar sensor or Road Transport
and Traffic Telematics
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According to spurious emission limit 7
3. Adding Point 2.1a and 2.11 to Section 2 of the
Appendix 2 as follows:
a) Adding Point 2.1a to the Appendix 2 as follows:
“2.1a. Spurious emission limit 1a:
Frequency (f)
Limit (measured
at distance of 10 m)
9 kHz ≤ f < 150 kHz
44 dBµA/m at the 9 kHz frequency, and reduced to
19 dBµA/m at the 150 kHz frequency.
150 kHz ≤ f < 30 MHz
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30 MHz ≤ f < 1 GHz
79 dBµA/m at the 30 kHz frequency, and reduced to
54 dBµA/m at the 1 kHz frequency.
b) Adding Point 2.11 to the Appendix 2 as follows:
“2.11. Spurious emission limit 11:
Frequency (f)
Limit
108 MHz ≤ f ≤ 137 MHz;
156 MHz ≤ f ≤ 162 MHz;
406, 0 MHz ≤ f ≤ 406,1 MHz;
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-16 dBm (25 µW)
4. The 866 ÷ 868 MHz frequency band and
corresponding conditions specified in the Appendix 2 and the Appendix 6 are
abrogated.
5. Notes in the Appendix 2 are abrogated.
6. Notes (*) in the Appendix 6 are abrogated.
7. The 1795 ÷ 1800 MHz frequency band and
conditions for use thereof are added to the Appendix 8 as follows:
Frequency band
Main emission
Spurious
emission
1795 ÷ 1800 MHz
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≤ 50 mW EIRP (for wireless lavalier audio
devices)
According to spurious emission limit 2
8. Amending heading of the Appendix 15 and adding the
24 ÷ 24,25 GHz frequency band and conditions for use thereof to the Appendix 15
as follows:
a) The heading of the Appendix 15 is amended as
follows: "TECHNICAL AND OPERATIONAL CONDITIONS APPLIED TO
LICENSE-EXEMPT AUTOMOTIVE RADAR, RADAR SENSOR OR ROAD TRANSPORT AND TRAFFIC
TELEMATICS”
b) The 24 ÷ 24,25 GHz frequency band and conditions
for use thereof are added as follows:
Frequency band
Main emission
Spurious
emission
24 ÷ 24,25 GHz
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According to spurious emission limit 7
9. The following frequency bands, 148,5 ÷ 190 kHz
and 10.200 ÷ 11.000 kHz, and conditions for use thereof are added to the
Appendix 16 as follows:
Frequency band
Main emission
Spurious
emission
Other
conditions
148,5 ÷ 190 kHz
≤ 30 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1
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- The duty cycle of the inductive loop shall not
exceed 10%.
148,5 ÷ 190 kHz
≤ -15 dBµA/m, measured at distance of 10 m (in a
bandwidth of 10 kHz)
According to spurious emission limit 1
10.200 ÷ 11.000 kHz
≤ 9 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1
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“Appendix 16A
TECHNICAL AND OPERATIONAL
CONDITIONS APPLIED TO SHORT RANGE DEVICES PROVING LINKS BETWEEN THE TRACKS AND
THE TRAINS
(Enclosed with the Circular No. 46/2016/TT-BTTTT dated December 26, 2016
by the Minister of Information and Communications)
Frequency band
Main emission
Spurious
emission
Other
conditions
3.234 ÷ 5.234 kHz
≤ 9 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1a
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- The duty cycle of the inductive loop shall not
exceed 1%.
26.957 ÷ 27.283 kHz
≤ 42 dBµA/m, measured at distance of 10 m
According to spurious emission limit 1a
- Used in railway information sector, providing
links between the tracks and the trains.
- Center frequency is 27,095 MHz.
11. The Appendix 19 is amended as follows:
“Appendix 19
TECHNICAL AND
OPERATIONAL CONDITIONS APPLIED TO RADIO DEVICES USED FOR MARITIME SAFETY AND
RESCUE PURPOSES
(Enclosed with the Circular No. 46/2016/TT-BTTTT dated December 26, 2016
by the Minister of Information and Communications)
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Main emission
Spurious
emission
Type of radio
device
Other
conditions
156.025 ÷ 162.025 MHz (*)
≤ 7,7 W ERP (12,5 W EIRP)
According to spurious emission limit 9
Automatic Identification System (AIS). (**)
AIS users must set up and provide related
identification information and data in accordance with applicable laws.
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≤ 12,2 W ERP
≥ 20 dBc at the frequency deviation from ± 3 kHz
to ± 7 kHz in comparison to carrier center frequency
≥ 30 dBc at the frequency deviation from ± 7 kHz
to ± 12 kHz in comparison to carrier center frequency
≥ 35 dBc at the frequency deviation from ± 12 kHz
to ± 24 kHz in comparison to carrier center frequency
≥ 40 dBc at the frequency deviation of -24 kHz in
comparison to the carrier center frequency to the 406,0 MHz frequency, and at
the frequency deviation of +24 kHz in comparison to the carrier center
frequency to the 406,1 MHz frequency.
Emergency Position Indicating Radio Beacon
(EPIRB). (**)
- EPIRB users must set up and provide related
identification information and data in accordance with applicable laws.
- Emission at the 121,5 MHz frequency: A3X. This
frequency is used for auxiliary radio locating device of the EPIRB.
121,5 MHz
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According to spurious emission limit 11
9200 ÷ 9500 MHz
≥ 400 mW EIRP
Not applicable
Search and Rescue Radar Transponder (SART).(**)
161,9625 ÷ 161,9875 MHz;
162,0125 ÷ 162,0375 MHz
≤ 7,7 W ERP (12,5 W EIRP)
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AIS Search and Rescue Radar Transponder
(AIS-SART)(**)
(*): International default operating
frequency bands: AIS1 (161,9625 ÷ 161,9875 MHz), AIS2 (162,0125 ÷
162,0375 MHz).
(**): If organizations and individuals
wish to apply for the license to use radio frequencies for EPIRB, AIS, SART,
AIS-SART, procedures for the radio frequency licensing must be carried out in
accordance with applicable laws.”
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