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THE
GENERAL DEPARTMENT OF POST AND TELECOMMUNICATIONS
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SOCIALIST
REPUBLIC OF VIET NAM
Independence - Freedom - Happiness
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No:
04/1999/TT-TCBD
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Hanoi,
OCTOBER 1, 1999
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CIRCULAR
GUIDING THE IMPLEMENTATION OF THE PRIME MINISTER'S DECISION
NO. 85/1998/QD-TTg ON THE APPROVAL OF THE PLANNING ON VIETNAM'S RADIO SPECTRUM
FOR VARIOUS SERVICES
On April 16, 1998, the Prime Minister signed
Decision No. 85/1998/QD-TTg approving the planning on Vietnam's radio spectrum for
various services. The General Department of Post and Telecommunications hereby
guides the above Decision as follows:
I. GENERAL PROVISIONS
1.1. All domestic and foreign organizations and
individuals in Vietnam, when using, producing or importing equipment with radio
radiation on the Vietnamese territory (hereafter referred collectively to as
the "radio frequency users") must comply with the Planning on
Vietnam's radio spectrum for various services.
Other plannings of ministries, branches and
People’s Committees relating to the use of radio spectrum must comply with the
Planning on Vietnam’s radio spectrum for various services and must be commented
by the General Department of Post and Telecommunications before their
submission to the Government.
1.2. The General Department of Post and
Telecommunications shall promulgate technical criteria and norms for use of
radio frequencies, and manage, guide as well as inspect the implementation of
the Planning on Vietnam’s radio spectrum for various services by the civil
radio frequency users.
The Ministry of Public Security and the Ministry
of Defense shall manage, guide and inspect the implementation of the Planning
by the radio frequency users for the security and defense purposes on the basis
of the technical criteria and norms for use of radio frequencies, issued by the
General Department of Post and Telecommunications.
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1.3.1. Radio frequencies are electromagnetic
waves with frequencies lower than 3000 GHz spreading in space without
conducting artificial waves.
1.3.2. Radio radiation is the flow of energy in
form of radio waves from any sources.
1.3.3. Radio emission is the radio radiation of
a radio transmitting station.
1.3.4. Unwanted emission is the unintentional
emission on a frequency or frequencies outside the necessary bandwidth and the
level of which may be reduced without affecting the corresponding transmission
of information.
1.3.5. A radio frequency band is a series of
frequencies of radio radiation.
1.3.6. The equipment with radio radiation
(hereafter referred to as radio equipment) are the equipment which, when
operating, generates radio waves, including:
- Radio communication equipment;
- Equipment for application of radio waves in
industry, science and healthcare;
- Equipment with unwanted radio wave radiation,
causing harmful interferences to radio communication.
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2.1. Using the Table of
frequency allocations for various operations:
2.1.1. The radio frequency users, when
elaborating plans for equipping, importing, producing and using radio
equipment, and the radio frequency-managing bodies, when fixing frequencies,
shall have to base themselves on Vietnam’s Table of frequency allocations for
various operations.
2.1.2. The way of using the Table:
2.1.2.1. The specific guidance for using
Vietnam’s Table of frequency allocations for various operations is presented in
the Planning issued together with Decision No. 85/1998/QD-TTg.
- The footnotes in Vietnam’s Table of frequency
allocations specify the use of each wave band.
- The footnotes related to a number of countries
in column "Allocations of Vietnam" shall be used to consider the
possibility of coordination of frequencies with such countries.
2.1.2.2. Vietnam’s Table of frequency
allocations for services in form of diagram shall help assess the whole of
planned wave bands.
The diagram includes 8 lines, each demonstrating
a wave band, stretching from the VLF band to the EHF band.
The VLF band covers the frequency range of from
over 3 to 30kHz (wave length of from 100km to 10km);
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.... MF band.... 300 ...3000 kHz (...1km
...100m);
... HF.....3 ....30 MHz (....100m .....10m);
... VHF....30 .... 300 MHz (.... 10m .....1m);
... UHF....300 .... 3000 MHz (...10dm ....1dm);
... SHF ....3 .....30GHz (.....10cm ..... 1cm);
... EHF....30 .....300 GHz (....10mm .... 1mm);
Each wave band is divided into smaller bands to
be allocated to various exploitable services demonstrated through color blocs
therein. Each service is demonstrated by one color.
2.2. Regulations on the use
of frequencies on wave bands:
2.2.1. It is strictly forbidden to use exclusive
safety or rescue communication frequencies for other purposes or to cause
harmful interference thereto. The international safety or rescue communication
frequencies are listed in Appendix 1.
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a/ Services of the same type enjoy equal
priority;
b/ The priority in radio frequency use right
shall be given to subjects using the registered frequencies and being granted
permits to use the frequencies first.
2.2.3. The principle mentioned at Point b,
Section 2.2.2, shall not apply to the wave bands the use of which must comply
with the State’s policies in each period, including wave bands reserved for
public telecommunication services, for security or defense purposes or reserved
for new technologies.
The General Department of Post and
Telecommunications shall make public the above-said wave bands.
2.2.4. The use of radio frequencies must comply
with the radio frequency standards and norms promulgated by the General Department
of Post and Telecommunications.
2.3. Regulations on
conversion from status quo to Planning:
2.3.1. As from the date this Circular takes
effect, it is strictly forbidden to sign contracts on import of radio equipment
for services incompatible with those stated in the Planning. The radio
equipment for wrong services, which have been imported under contracts signed
before that date, shall have to be converted under the provisions in Section
2.3.3 of this Circular.
2.3.2. Within 6 months after this Circular takes
effect, the subjects using radio frequencies shall have to make the lists of
equipment being in wrong services according to the set form and send them to:
The Radio Frequency Department - 18 Nguyen Du,
Hanoi.
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2.3.3.1. For equipment operating on frequencies
incompatible with the services under the Planning:
a/ Where the equipment may be adjusted to
operate on frequencies compatible to the services under the Planning without
needing any fund for frequency adjustment: The subjects using the radio
frequencies shall have to immediately switch to operate on the proper service
frequencies under the provisions of the General Department of Post and
Telecommunications.
b/ Where the equipment cannot be adjusted to
operate on frequencies compatible with the services under the Planning or the
equipment can be adjusted but require funds therefor:
- On wave bands with low frequency density, the
radio frequency users may exploit them till the end of the equipment depreciation
duration, but not beyond the year 2005, or till the General Department of Post
and Telecommunications requests them to stop the exploitation for reasons of
interference.
The equipment depreciation duration shall be
calculated according to the regulations of the Ministry of Finance. The
replacement of damaged equipment or the expansion of networks shall not alter
the equipment depreciation duration.
- On wave bands with high frequency density, the
radio frequency users shall have to replace the old equipment with those having
the operating frequencies compatible with the services under the guidance of
the General Department of Post and Telecommunications. If wishing to continue
exploiting the old equipment, they shall have to move to localities with low
frequency density, as consented by the General Department of Post and
Telecommunications. In the above-mentioned cases, the subjects using radio
frequencies incompatible with the services shall have to bear the costs of
equipment conversion.
2.3.3.2. Subjects using radio frequencies with
equipment operating on the frequency ranges prescribed in Section 2.2.3:
- If they have been permitted by the General
Department of Post and Telecommunications to operate on such frequency bands,
they shall have to arrange and convert the equipment for operations compatible
with the fixed frequency ranges.
- If they have not been permitted by the General
Department of Post and Telecommunications to operate on such frequency bands,
they shall, within 5 years after receiving the notice thereon, have to convert
their equipment to operate on other frequency bands prescribed by the General
Department of Post and Telecommunications.
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2.3.3.3. For equipments operating on prescribed frequencies,
which, for security or defense reasons, must be converted before the 5-year
time-limit after the notice is received, the fund for such conversion shall be
considered, depending on specific cases as agreed upon between the parties
concerned or the General Department of Post and Telecommunications shall,
together with the concerned State management bodies, consider and settle
according to the current regulations of the State,
2.3.4. Vessels which exploit resources on the
sea and use radio equipment with working frequencies not covered by frequency
bands allocated to maritime mobile service may exploit the frequency bands as
prescribed in Appendix 3.
2.3.5. Radio equipment must have the unwanted
emission level being not greater than the permissible maximum level prescribed
in Appendix 4.
2.3.6. When necessary, at the request of the
General Department of Post and Telecommunications, the subjects using radio
equipment shall have to supply the parameters on the equipment’s unwanted
emission level and be subject to the inspection by the General Department of
Post and Telecommunications regarding such parameters.
In special case, at the request of the General
Department of Post and Telecommunications, the subjects using the radio
frequencies shall have to apply measures in order to achieve the unwanted
emission level smaller than that prescribed in Appendix 4.
2.4. Regulations on frequency
coordination:
2.4.1. Domestic frequency coordination
2.4.1.1. The General Department of Post and
Telecommunications, the Ministry of Public Security and the Ministry of Defense
shall manage the frequency bands exclusively reserved for civil, security and
defense organizations, ensuring that the subjects under their respective
management shall use such frequency bands economically and efficiently and not
use frequencies on frequency bands reserved exclusively for other
organizations.
2.4.1.2. Where there is demand to use
frequencies on frequency bands reserved exclusively for other organizations,
the latter’s consent is required.
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2.4.2. Frequency coordination in national border
regions: The General Department of Post and Telecommunications shall act as the
competent representative of Vietnam in the frequency coordination with
neighboring countries in the border regions. The subject using the radio
frequencies under the management by the Ministry of Defense and the Ministry of
Public Security shall provide, through functional agencies, necessary data for
the Radio Frequency Department (the General Department of Post and
Telecommunications) as prescribed so as to carry out procedures for frequency
coordination at the border regions.
2.4.3. Registering international frequencies:
Subjects using radio frequencies shall have to register the international
frequencies in the following cases:
- The use of such frequencies may cause harmful
interferences to any operation of foreign countries;
- The frequencies are used for international
radio communications;
- The users wish to gain the international
acknowledgement in the use of frequencies.
The registration of international frequencies shall
comply with the circular guiding the implementation of the Government’s Decree
No. 109/1997/ND-CP of November 12, 1997 on Post and Telecommunications
regarding the management and granting of permits for using radio frequencies
and/or transmitters.
2.5. Adjusting the Planning:
2.5.1. The adjustment of the Planning under the
decisions of the International Telecommunications Union, world radio
conferences, regional radio conferences and according to the national policies
for telecommunications development shall be made by the General Department of
Post and Telecommunications.
2.5.2. For adjustments which may alter the plans
and investment already approved by the Government, the General Department of
Post and Telecommunications shall submit them to the Prime Minister for
approval on the basis of the appraisal by the Radio Frequency Committee.
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2.6. Regulations on sanctions:
All forms of administrative violations in the
management and use of radio frequencies and equipment as well as the
sanctioning levels shall comply with Articles 14 and 15, Section 3, Chapter II,
Decree No. 79/CP of June 19, 1997 of the Government stipulating sanctions
against administrative violations in the field of State management over post,
telecommunications and radio frequencies.
III. ORGANIZATION OF
IMPLEMENTATION
This Circular takes effect 15 days after its
signing. All previous regulations contrary to this Circular shall be annulled.
In the course of implementation, if any problem
arises, it should be promptly reported to the General Department of Post and
Telecommunications for guidance.
The contact address: Radio Frequency Department,
the General Department of Post and Telecommunications, 18 Nguyen Du, Hanoi.
Telephone: 8226908. Fax: 8226910.
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APPENDIX 1
FREQUENCIES AND BANDS RESERVED EXCLUSIVELY FOR
INTERNATIONAL SAFETY AND RESCUE COMMUNICATIONS
490 kHz 6314kHz 121.5 MHz
500 kHz 8291 kHz 123.1 MHz
518 kHz 8364 kHz 156.3 MHz
2174.5 kHz 8376.5 kHz 156.525 MHz
2182 kHz 8414.5 kHz 156.650 MHz
2187.5 kHz 8416.5 kHz 156.8 MHz
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2190.5 kHz
3023 kHz 12,520 kHz 406-406.1 MHz
4125 kHz 12,577 kHz 1530-1544 MHz
4177.5 kHz 12,579 kHz 1544-1545 MHz
4207.5 kHz 16,420 kHz 1626.5-1645.5 MHz
4209.5 kHz 16,695 kHz 1645.5-1646.5 MHz
4210 kHz 16,804.5 kHz 9200-9500 MHz
5680 kHz 16,806.5 kHz
6215 kHz 19,680.5 kHz
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6312 kHz 26,100.5 kHz
The above-listed frequencies are all the wave
carrier frequencies.
APPENDIX 3
FREQUENCIES RESERVED FOR VESSELS EXPLOITING SEA
RESOURCES AND USING RADIO COMMUNICATION EQUIPMENT WITH FREQUENCIES NOT
BELONGING TO MARITIME MOBILE SERVICES
1. Frequency band of 7900-8000kHz
Channel
Frequency
(kHz)
Channel
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Channel
Frequency
(kHz)
1
2
3
4
5
6
7
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9
10
11
7903
7906
7909
7912
7915
7918
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7924
7927
7930
7933
12
13
14
15
16
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18
19
20
21
22
7936
7939
7942
7945
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7951
7954
7957
7960
7963
7966
23
24
25
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27
28
29
30
31
32
33
7969
7972
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7978
7981
7984
7987
7990
7993
7996
7999
- When using equipment which can transmit on frequency
2182 kHz, the following regulation must be strictly complied with: Frequency
2182 kHz is reserved for safety, rescue and emergency calls.
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- The call channels are only used to make
contacts, right after a contact is established, the mutual agreement must be
reached to move to other channels for talks. Talks on the call channels are not
permitted.
2. Frequency band 26.965 - 27.045 MHz
Channel
Frequency
(MHz)
Channel
Frequency
(MHz)
1
2
3
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5
6
7
8
9
10
11
12
13
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15
16
17
18
19
20
26.965
26.975
26.985
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27.015
27.025
27.035
27.055
27.065
27.075
27.085
27.105
27.115
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27.135
27.155
27.165
27.175
27.185
27.205
21
22
23
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25
26
27
28
29
30
31
32
33
...
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35
36
37
38
39
40
27.215
27.225
27.255
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27.245
27.265
27.275
27.285
27.295
27.305
27.315
27.325
27.335
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27.355
27.365
27.375
27.385
27.395
27.405
- Frequency channels 27.065 MHz and 27.185 MHz
are reserved for safety and rescue calls and support. They are stipulated as
the call channels.
- The call channels are only used to make
contacts; right after a contact is established, the mutual agreement must be
reached to move to another channels for talks. Talks on the call channels are
not permitted.
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TABLE OF PERMISSIBLE MAXIMUM UNWANTED EMISSION
OUTPUT LEVELS
(According to Regulation of the International Telecommunications Union)
Frequency band
For any unwanted emission, the reduction
coefficient (the ratio between the average output within the necessary
bandwidth and the average output of the relevant unwanted emission) must
be at least equal to the level indicated, and the absolute value of the
average output shall not exceed the absolute value indicated below
From 9 kHz to 30 MHz
From over 30 MHz to 235 MHz
The average output over 25 W
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Over 235 MHz to 960 MHz
- The average output of over 25 W
- The average output of 25 W or smaller
Over 960 MHz to 17.7 GHz
- Average output of over 10 W
- Average output of 10 W or smaller
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Over 17.7 GHz
40 dB
50 mW
60 dB
1 mW
40 dB
W25
60 dB
20 mW
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W25
50 dB
100 mW
The reduction coefficient (dB) not yet
prescribed
W100
The specific level not yet prescribed. To
achieve the lowest level as possible
These levels shall not apply to emergency
position-indicating radio beacon stations, emergency search transmitters, ship’s
emergency transmitters, life-rescue boads’ transmitters, aircraft stations,
post-accident survival maritime transmitters when being used in emergency
circumstances.-
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GENERAL DIRECTOR OF POST AND
TELECOMMUNICATIONS
Mai Liem Truc