Telecommunications
Standards Advisory
Committee (TSAC)
Technical Specification
Short Range Devices

IMDA TS SRD
Issue 1 Revision 3, Sep 2023
Info-communications Media Development Authority
Info-communications Resource & Technology
10 Pasir Panjang Road
#10-01 Mapletree Business City
Singapore 117438© Copyright of IMDA, 2023
This document may be downloaded from the IMDA website at http://www.imda.gov.sg and shall not be distributed
without written permission from IMDAIMDA TS SRD (Sep 2023)

Acknowledgement
The Info-communications Media Development Authority (IMDA) would like to acknowledge the following members of
the Telecommunications Standards Advisory Committee (TSAC) for their invaluable contributions towards the
publication of this Technical Specification.

Telecommunications Standards Advisory Committee (TSAC)
The TSAC advises IMDA on the setting of ICT standards as well as on the development and recommendation of
specifications, standards, information notes, guidelines and other forms of documentation for adoption andadvancement of the standardisation effort of the Singapore ICT industry (hereafter termed “IMDA Standards”).
Telecommunications standards-setting in Singapore is achieved with the assistance of TSAC, where professional, tradeand consumer interest in telecommunications standards is represented on the TSAC with representatives from networkand service operators, equipment suppliers and manufacturers, academia and researchers, professional bodies andother government agencies.
List of TSAC Members (2021-2024)
TSAC Chairman:
Dr Chin Woon Hau

Director (Standards Development and Regulatory Technology)
Infocomm Media Development Authority (IMDA)TSAC Members:
Mr Yip Yew Seng
Mr Adrian Chang
Mr Lim Wee Seng
Mr Koh Yixiong
Mr Mark Tan
Mr Andy Phang
Mr Marcus Tan Cheng Lin
Mr Peter Quek
Mr Denis Seek
Mr Dennis Khoo
Mr Anil Nihalani
Dr Teh Kah Chan
Dr Biplab Sikdar
Mr Kenneth Loh
Dr Forest Tan

Honorary Secretary
Association of Telecommunications Industry of Singapore (ATIS)
Director, Futures and Information Technology/Chief Information Officer
Civil Aviation Authority of Singapore (CAAS)
Director, Energy Management System / Power System Operation Division
Energy Market Authority (EMA)
Deputy Director - IT, Electrical & InfrastructureEnterprise Singapore (ESG)
Deputy Director, Security Engineering & Operations Section
Housing Development Board (HDB)
Assistant Director, Standards Development and Regulatory Technology
Infocomm Media Development Authority (IMDA)
Head of Cybersecurity Department
Institute for Infocomm Research (I2R)Group Director - IT, Cybersecurity & Digital Services
Land Transport Authority (LTA)CTO
M1 Limited
Director, Port Systems Division
Maritime and Port Authority of Singapore (MPA)
Head, Digital Products & Technology
Mediacorp Pte Ltd
Associate Professor, School of EEE
Nanyang Technological University (NTU)
Associate Professor, Department of ECE
National University of Singapore (NUS)
RF Manager
Simba Telecom Pte. Ltd.
Associate Professor, Infocomm Technology Cluster
Singapore Institute of Technology (SIT)ii

IMDA TS SRD (Sep 2023)
Ms Louisa Lim
Mr Lee Yeu Ching

Head, Mobile Network Strategy and Access Engineering
Singapore Telecommunications Ltd (Singtel)
Vice President, Fixed & TV Networks
StarHub Ltd

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IMDA TS SRD (Sep 2023)

Contents
NOTICE .............................................................................................................................................................. 2
1.

Scope ......................................................................................................................................................... 3

2.

References ................................................................................................................................................. 33.

Abbreviations & Definitions ...................................................................................................................... 7

4.

General Requirements............................................................................................................................... 85.

Technical Requirements ............................................................................................................................ 96.

Table 1: Technical Requirements for Short Range Devices (SRD) ........................................................... 10

7.

Table 1-a: Category B of Spurious Domain Emission Limits .................................................................... 21

8.

Table 2: Technical Requirements for Short Range Devices (SRD) – Operation Requires Approval ........ 21

Annex A : Conformity Assessment Checklist for SRD ...................................................................................... 23
Annex B : Addendum/Corrigendum ................................................................................................................ 25
Annex B1 : Detailed changes to IMDA TS SRD Issue 1 Revision 1 in Table 1 ................................................... 32

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IMDA TS SRD (Sep 2023)

NOTICETHE INFO-COMMUNICATIONS MEDIA DEVELOPMENT AUTHORITY (“IMDA”) MAKES NO REPRESENTATION OR WARRANTY OF ANY
KIND WITH REGARD TO THE MATERIAL PROVIDED HEREIN AND EXCLUDES ANY EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS OF
NON -INFRINGEMENT , MERCHANTABILITY , SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE . SUBJECT TO THE
MAXIMUM EXTENT PERMITTED UNDER LAW , IMDA SHALL NOT BE RESPONSIBLE OR LIABLE TO YOU OR ANY THIRD PARTY FOR ANY
ERRORS AND / OR OMISSIONS CONTAINED HEREIN OR FOR ANY LOSSES OR DAMAGES ( INCLUDING ANY LOSS OF PROFITS , BUSINESS,GOODWILL OR REPUTATION , AND/ OR ANY SPECIAL , INCIDENTAL OR CONSEQUENTIAL DAMAGES ) IN CONNECTION WITH THE USE OF
THIS MATERIAL .

IMDA RESERVES THE RIGHT TO CHANGE, MODIFY OR ADD TO ANY PART OF THIS DOCUMENT. NOTHING HEREIN IS INTENDED TO CREATE ORIMPOSE ANY BINDING LEGAL OBLIGATIONS OR LIABILITY WHATSOEVER ON IMDA, WHETHER EXPRESSED OR IMPLIED, AND WHETHERCONTRACTUAL OR OTHERWISE. WITHOUT PREJUDICE TO THE FOREGOING, NOTHING IN THIS DOCUMENT SHALL BIND IMDA TO ADOPT ANY
PARTICULAR COURSE OF ACTION. CONSEQUENTLY, NOTHING HEREIN SHALL BE CONSTRUED AS GRANTING ANY EXPECTATION, WHETHERPROCEDURAL OR SUBSTANTIVE IN NATURE, THAT IMDA WILL TAKE OR NOT TAKE ANY PARTICULAR COURSE OF ACTION IN THE FUTURE , ARISINGFROM OR DUE TO ANYTHING IN THIS DOCUMENT OR IN THE EXERCISE OF ITS DISCRETION AS A PUBLIC AUTHORITY.
IMDA DRAWS ATTENTION TO THE POSSIBILITY THAT ANY PRACTICE OR IMPLEMENTATION OF THIS STANDARD/SPECIFICATION MAY INVOLVE
THE USE OF INTELLECTUAL PROPERTY RIGHTS AND TAKES NO POSITION CONCERNING THE EXISTENCE, VALIDITY AND/OR APPLICABILITY OF ANY
SUCH INTELLECTUAL PROPERTY RIGHTS, WHETHER ASSERTED BY TSAC MEMBERS OR ANY THIRD PARTY.
AS OF THE DATE OF ISSUANCE OF THIS STANDARD/SPECIFICATION, IMDA HAS NOT RECEIVED WRITTEN NOTICE OF ANY PATENT RIGHTS WHICH
MAY BE RELEVANT IN RELATION TO THE IMPLEMENTATION OF THIS STANDARD/SPECIFICATION. HOWEVER, IMPLEMENTERS ARE CAUTIONEDTHAT THIS MAY NOT REPRESENT THE LATEST INFORMATION AND ARE THEREFORE STRONGLY URGED TO CHECK WITH THE RELEVANT DATABASEIN ITU, ISO, IEC OR THE RELEVANT STANDARDS DEVELOPMENT ORGANISATION FOR INFORMATION OF INTELLECTUAL PROPERTY RIGHTS .

IMPLEMENTERS ARE ADVISED TO OBTAIN THEIR OWN PROFESSIONAL, TECHNICAL AND/OR LEGAL ADVICE AND CONDUCT ALL NECESSARY DUEDILIGENCE, INCLUDING BUT NOT LIMITED TO MAKING SUCH INVESTIGATIONS OR SEEKING CLARIFICATIONS AS MAY BE APPROPRIATE , IN REGARDTO ANY DECISION OR ACTION THAT THEY INTEND TO TAKE, OR PRIOR TO THE IMPLEMENTATION OF ANY STANDARD/SPECIFICATION AS MAY
BE REQUIRED.

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IMDA TS SRD (Sep 2023)

1. Scope
1.1

This Specification defines the minimum technical requirements for Short-range Radio-communication Devices(SRD) to operate in one of the authorised frequency bands or frequencies, and transmit within the corresponding
output power levels and restricted conditions given in Table 1.

1.2

This Specification allows SRDs to share the use of spectrum in a non-exclusive manner, based on technical usage
conditions and, where necessary, using spectrum access mechanisms such as duty cycle, frequency hopping,detect and avoid, adaptive power control and listen before talk. It provides flexibility for deployment of a varietyof SRD applications, catering to specific (common) as well as non-specific usage scenarios.

1.3

SRDs may be fixed, mobile or portable stations that come with a radio frequency output connector and dedicatedantenna or an integral antenna. Applications include alarms, identification systems, radio-detection, vehicle
radar systems, wireless local area networks, remote controls, telecommand, telemetry and on-site paging
systems. These devices may employ different types of modulation and may have speech applications.

1.4

SRDs shall operate according to the relevant technical requirements given in Table 1, and may only be allowed
to operate to the requirements given in Table 2 on an exception basis.

2. References
For the technical requirements captured in this Specification, reference has been made to the following standards.
Where versions are not indicated, implementation of this Specification shall be based on current and valid versions ofthese standards published by the respective Standards Development Organisations.
1.

ETSI EN 300 330

Short Range Devices (SRD); Radio equipment in the frequency range 9
kHz to 25 MHz and inductive loop systems in the frequency range 9 kHz
to 30 MHz; Harmonised Standard covering the essential requirements
under article 3.2 of Directive 2014/53/EU

2.

ETSI EN 302 291-1

Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD); Close Range Inductive Data
Communication equipment operating at 13.56 MHz; Part 1: Technicalcharacteristics and test methods

3.

ETSI EN 300 220-1

Short Range Devices (SRD) operating in the frequency range 25 MHz to1000 MHz;Part 1: Technical characteristics and test methods
Part 2: Harmonised Standard for access to radio spectrum for nonspecific radio equipment
Part 4: Harmonised Standard covering the essential requirements underarticle 3.2 of Directive 2014/53/EU; Metering devices operating indesignated band 169.400 MHz to 169.475 MHzETSI EN 300 220-2
ETSI EN 300 220-4

4.

ETSI EN 301 357

Cordless audio devices in the range 25 MHz to 2000 MHz; HarmonisedStandard covering the essential requirements under article 3.2 of
Directive 2014/53/EU

5.

ETSI EN 303 417

Wireless power transmission systems, using technologies other thanradio frequency beam, in the 19 – 21 kHz, 59 – 61 kHz, 79 – 90 kHz, 100– 300 kHz, 6765 – 6795 kHz; Harmonised Standard covering theessential requirements of article 3.2 of Directive 2014/53/EU

6.

ETSI EN 300 422-1

Wireless microphones; Audio PMSE up to 3 GHz; Part 1: Class A
Receivers; Harmonised Standard covering the essential requirements
under article 3.2 of Directive 2014/53/EU
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IMDA TS SRD (Sep 2023)
7.

ETSI EN 300 422-4

Wireless microphones; Audio PMSE up to 3 GHz; Part 4: Assistive
Listening Devices including personal sound amplifiers and inductive
systems up to 3 GHz; Harmonised Standard covering the essential
requirements under article 3.2 of Directive 2014/53/EU

8.

ETSI EN 300 433

Citizens' Band (CB) radio equipment; Harmonised Standard covering
the essential requirements under article 3.2 of Directive 2014/53/EU

9.

ETSI EN 300 224

Land Mobile Service; Radio Equipment for use in Paging Service
operating within the frequency range 25 MHz – 470 MHz; HarmonisedStandard covering the essential requirements under article 3.2 of
Directive 2014/53/EU;

10.

ETSI EN 302 195

Short Range Devices (SRD); Ultra Low Power Active Medical Implants(ULP-AMI) and accessories (ULP-AMI-P) operating in the frequency
range 9 kHz to 315 kHz; Harmonised Standard covering the essential
requirements under article 3.2 of Directive 2014/53/EU

11.

ETSI EN 300 440

Short Range Devices (SRD); Radio equipment to be used in the 1 GHz
to 40 GHz frequency range; Harmonised Standard for access to radio
spectrum

12.

ETSI EN 301 839

Ultra Low Power Active Medical Implants (ULP-AMI) and associated
Peripherals (ULP-AMI-P) operating in the frequency range 402 MHz
to 405 MHz; Harmonised Standard covering the essential requirements
under article 3.2 of Directive 2014/53/EU

13.

ETSI EN 302 537

Ultra Low Power Medical Data Service (MEDS) Systems operating in
the frequency range 401 MHz to 402 MHz and 405 MHz to 406 MHz;
Harmonised Standard covering the essential requirements under article
3.2 of Directive 2014/53/EU

14.

ETSI EN 300 390

Land Mobile Service; Radio equipment intended for the transmission ofdata (and speech) and using an integral antenna; Harmonised Standard
covering the essential requirements under article 3.2 of Directive
2014/53/EU

15.

ETSI EN 300 113

Land Mobile Service; Radio equipment intended for the transmission ofdata (and/or speech) using constant or non-constant envelope
modulation and having an integral antenna connector; HarmonisedStandard covering the essential requirements under article 3.2 of
Directive 2014/53/EU

16.

ETSI EN 301 091-1

Short Range Devices; Transport and Traffic Telematics (TTT); Radarequipment operating in the 76 GHz to 77 GHz range; HarmonisedStandard covering the essential requirements under article 3.2 of
Directive 2014/53/EU;
Part 1: Ground based vehicular radar
Part 2: Fixed infrastructure radar equipment

ETSI EN 301 091-2
17.

ETSI EN 302 208

Radio Frequency Identification equipment operating in the band 865
MHz to 868 MHz with power levels up to 2 W and in the band 915 MHz
to 921 MHz with power levels up to 4W; Harmonised Standard covering
the essential requirements under article 3.2 of Directive 2014/53/EU

18.

ETSI EN 302 858

Short Range Devices; Transport and Traffic Telematics (TTT); Radarequipment operating in the 24.05 GHz to 24.25 GHz or 24.05 GHz to
24.50 GHz range; Harmonised Standard covering the essential
requirements under article 3.2 of Directive 2014/53/EU
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IMDA TS SRD (Sep 2023)

19.

ETSI EN 302 372

Short Range Devices; Tank Level Probing Radar (TLPR) equipment
operating in the frequency ranges 4.5 GHz to 7 GHz, 8.5 GHz to 10.6 GHz,
24.05 GHz to 27 GHz, 57 GHz to 64 GHz, 75 GHz to 85 GHz; HarmonisedStandard covering the essential requirements under article 3.2 of
Directive 2014/53/EU

20.

ETSI EN 300 328

Wideband transmission systems; Data transmission equipment
operating in the 2.4 GHz ISM band; Harmonised Standard for access toradio spectrum

21.

ETSI EN 301 893

5 GHz RLAN; Harmonised Standard covering the essential
requirements of article 3.1(b) of the Directive 2014/53/EU

22.

ETSI EN 302 502

Wireless Access Systems (WAS); 5.8GHz fixed broadband datatransmitting systems; Harmonised Standard for access to radio
spectrum

23.

ETSI EN 305 550-1

Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD); Radio equipment to be used in the 40 GHz
to 246 GHz frequency range; Part 1: Technical characteristics and test
methods

Draft ETSI EN 305 550

Short Range Devices (SRD); Radio equipment to be used in the 40 GHz
to 246 GHz frequency range; Harmonised Standard for access to radio
spectrum24.

ETSI EN 302 567

Multiple-Gigabit/s radio equipment operating in the 60 GHz band;
Harmonised Standard covering the essential requirements under article
3.2 of Directive 2014/53/EU

25.

ETSI EN 302 217-2

Fixed Radio Systems; Characteristics and requirements for pointto-point equipment and antennas; Part 2: Digital systems
operating in frequency bands from 1 GHz to 86 GHz; HarmonisedStandard for access to radio spectrum

26.

ETSI EN 301 489-1

Electromagnetic Compatibility (EMC) standard for radio equipment
and services; Harmonised Standard covering the essential
requirements of article 3.1(b) of the Directive 2014/53/EU and theessential requirements of article 6 of the Directive 2014/30/EU; Part
1: Common technical requirements

27.

ETSI EN 301 489-3

Electromagnetic compatibility and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC) standard for radio equipment
and services; Part 3: Specific conditions for Short-Range Devices (SRD)
operating on frequencies between 9 kHz and 246 GHz

28.

ETSI EN 301 489-17

ElectroMagnetic Compatibility (EMC) standard for radio equipment
and services; Part 17: Specific conditions for Broadband Data
Transmission Systems; Harmonised Standard covering the essential
requirements of article 3.1(b) of the Directive 2014/53/EU

29.

CEPT/ERC/REC 70-03

Relating to the use of Short Range Devices (SRD)

30.

ANSI C63.10-2013

American National Standard for Testing Unlicensed Wireless Devices

31.

FCC Part 15
Subpart B –Radio Frequency Devices
Unintentional Radiators
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IMDA TS SRD (Sep 2023)§15.107§15.109

Conducted limits
Radiated emission limits

FCC Part 15
Subpart C –§15.209§15.219§15.221§15.225 (a)§15.227§15.229§15.231§15.249

Radio Frequency Devices
Intentional Radiators
Radiated emission limits, general requirements
Operation in the band 510 – 1705 kHz
Operation in the band 525 – 1705 kHz
Operation within the band 13.553 – 13.567 MHz
Operation within the band 26.96 – 27.28 MHz
Operation within the band 40.66 – 40.70 MHz
Periodic operation in the band 40.66 – 40.70 MHz and above 70 MHz
Operation in the band 88 – 108 MHz
Operation in the band 433.5 – 434.5 MHz
Operation in the band 174 – 216 MHz
Operation in the bands 174 – 216 MHz and 470 – 668 MHz
Operation within the bands 902 – 928 MHz, 2400 – 2483.5 MHz, and5725 – 5850 MHz
Operation within the bands 902 – 928 MHz, 2400 – 2483.5 MHz, 5725
– 5875 MHz and 24.0 – 24.25 GHz

33.

FCC Part 15
Subpart E –§15.407

Radio Frequency Devices
Unlicenced National Information Infrastructure Devices
General technical requirements

34.

FCC Part 95
Subpart M

The 76-81 GHz Band for Radar Service
Operating Rules
Technical Rules

35.

IEC CISPR 32

Electromagnetic compatibility of multimedia equipment – Emission
requirements

36.

IEC CISPR 35

Electromagnetic compatibility of multimedia equipment – Immunity
requirements

37.

IEC 62368-1

Audio/video, information and communication technology equipment– Part 1: Safety requirements

38.

ISO 7637-2

Road vehicles - Electrical disturbances from conduction and coupling- Part 2: Electrical transient conduction along supply lines only

39.

ITU-T K.116

EMC requirements and test methods for radio telecommunication
terminal equipment

40.

ITU-R Rec. SM.329-12

Unwanted emissions in the spurious domain

32.

§15.239§15.240§15.241§15.242§15.247

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IMDA TS SRD (Sep 2023)

3. Abbreviations & Definitions
AC
AFA
ALD
ANSI
APC
CB
CISPR
DAA
DC
DFS
EIRP
EMC
EMI
EMS
EN
ETSI
FCC
IEC
ISM
ISO
ITU-R
ITU-T
LBT
LDC
LP
LPI
LPWAN
MEDS
PMSE
RLAN
RF
RFID
SRD
TPC
TS
TTT
ULP-AMIULP-AMI-P
VLP
WLAN

Alternating Current
Adaptive Frequency Agility
Assistive Listening Devices
American National Standards Institute
Adaptive Power Control
Citizens’ Band
International Special Committee on Radio Interference of the IEC
Detect-And-Avoid
Direct Current
Dynamic Frequency Selection
Effective Isotropic Radiated PowerElectromagnetic Compatibility
Electromagnetic InterferenceElectromagnetic Sustainability
European Standard
European Telecommunications Standards InstituteFederal Communications Commission
International Electrotechnical Commission
Industrial, Scientific and Medical
International Organization for Standardization
ITU Radiocommunication Sector
ITU Telecommunication Standardization Sector
Listen Before Talk
Low Duty Cycle
Low Power
Low Power Indoor
Low-power Wide-area Network
Medical Data Service
ITU-R F.[PMSE] – use of terrestrial audio and video Programme Making and Special Events
applications
Radio Local Area Network
Radio Frequency
Radio Frequency Identification
Short Range Devices
Transmit Power Control
IMDA Technical Specification
Transport and Traffic Telematics
Ultra Low Power Active Medical Implants
ULP-AMI and associated Peripherals
Very Low Power
Wireless Local Area Network

Effective Radiated Power (e.r.p.) refers to total power radiated by an antenna w.r.t a half wave tuned dipole, which
is used for frequencies below 1 GHz.
Equivalent Isotropic Radiated Power (e.i.r.p.) is a product of the power supplied to the antenna and the maximum
antenna gain, relative to an isotropic antenna, and is used for frequencies above 1 GHz. There is a constantdifference of 2.15 dB between e.i.r.p. and e.r.p. [e.i.r.p. (dBm) = e.r.p. (dBm) + 2.15]

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IMDA TS SRD (Sep 2023)

4. General Requirements
4.1

Design of Short Range Device

Short range devices (SRDs) shall be designed to meet the following basic objectives:

4.2
4.2.1

(a)

The device is intended for operating in unprotected and shared frequency bands. Its operation shall notcause interference with other authorised radio-communication services, and shall be able to tolerate any
interference caused by other radio-communication services, electrical or electronic equipment.

(b)

The device shall not be constructed with any external or readily accessible control which permits theadjustment of its operation in a manner that is inconsistent with this Specification.

Electromagnetic Compatibility (EMC) and Equipment Safety Requirements
For EMC assessment, the SRD and/or ancillary equipment shall be classified as equipment for fixed use;
vehicular use (i.e. mobile terminal connected with vehicular charger or DC supply); or portable/mobile use (i.e.
powered by its integral battery). This equipment classification is used to determine the applicability of the EMC(emission and immunity) testing requirements based on §5.5 and §7 of ETSI EN 301 489-1; or §7.5 and §9 of
ITU-T K.116. The ETSI EN 301 489-1 standard shall be used in conjunction with the ETSI EN 301 489-3 standard
for SRD operating on frequencies between 9 kHz and 246 GHz; or ETSI EN 301 489-17 standard for broadband
data transmission systems, where applicable (e.g. Wireless Local Area Network).

4.2.1.1

EMI or emission measurements(a)Radiated emissions from associated ancillary equipment not incorporated in the SRD shall be measured
to Class B requirements defined in §5 and Tables A.4 and A.5 of IEC CISPR 32.

(b)

Conducted emission at the DC power port of the SRD intended for vehicular use, shall be measured
according to §8.3 of EN 301 489-1.

(c)Conducted emission at the AC mains port shall be measured for SRD with dedicated power
adapter/charger to Class B requirements defined in §5 and Table A.10 of IEC CISPR 32. Equipment withDC power port which is powered by a dedicated AC/DC power converter is defined as AC mains powered
equipment (§3.1.1 of CISPR 32).

(d)

Conducted emission at the wired network port1 of the SRD shall be measured to Class B requirements
defined in Table A.12 of IEC CISPR 32; or §8.7 of ETSI EN 301 489-1.

Note 1:

If SRD is a module intended to be marketed and sold separately from a host, it shall be assessed withat least one representative host system. Modules may be internal, mounted, plug-in or external (§6.2
of IEC CISPR 32).

Note 2:Emission measurements performed to FCC Part 15 Subpart B for unintentional radiators (§15.105 and§15.109) may be acceptable as an alternative to IEC CISPR 32.

4.2.1.2

EMS or immunity testing

The following immunity tests may be performed on the SRD to requirements defined in IEC CISPR 35, §11 of ITU-T K.116
or §9 of ETSI EN 301 489-1, where applicable:

1(a)RF electromagnetic field (80 MHz to 6 GHz) at the enclosure of the equipment(b)Electrostatic discharge at the enclosure of the equipment

Wired network port is used for voice, data and signaling transfers intended for connection to a communication
network, e.g. CATV, PSTN, ISDN, ADSL and LAN (§3.1.32 of IEC CISPR 32).
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IMDA TS SRD (Sep 2023)

4.2.2

(c)

Fast transients (common mode) at DC power and AC main power ports that have cables longer than 3 m(d)RF common mode 0.15 MHz to 80 MHz at DC power and AC mains power ports that have cables longer
than 3 m(e)Transients and surges (vehicular environment) on nominal 12V and 24V DC supply voltage input ports ofmobile terminal and ancillary equipment intended also for mobile use in vehicles(f)Voltage dips and interruptions at AC mains power port of mobile or portable terminal with dedicatedcharger/power adapter(g)Surges, common and differential mode at AC mains power port of mobile or portable terminal withdedicated charger/power adapter

Equipment safety testing

Equipment suppliers (including manufacturers, importers, distributors, retailers and other traders) shall ensure thatthey only place products which are safe on the market. They can enhance the safety of their products by the following
ways:
(a)

Testing their products before placing them on the market(b)

Ensuring that their products are certified to international safety standards(c)Where products are already under the purview of other government agencies, ensure that they satisfied
the relevant regulatory requirements by the agencies(d)Informing consumers of any potential hazards or risks arising from the use of their products

The following AV/ICT equipment shall comply with the IEC 62368-1 (minimum Ed. No. 2) standard:(a)Equipment designed for use with a voltage rating between 50V and 1000V for AC or between 75 V and
1500V for DC; and/or(b)

Mobile/wearable devices which operate within the SRD frequency(s) such as tablets and mobile phones

5. Technical Requirements
5.1

The SRD shall comply with the maximum field strength or radio frequency (RF) output power, spurious emissions
and spectrum access conditions given in Table 1 of this Specification, operating in its intended frequency bandor frequencies. It shall fulfil the relevant requirements of this Specification on all the permitted frequencies or
sub-band(s) which it is intended to operate.

5.2

The SRD shall be tested for compliance with the technical requirements set out in Table 1 of this Specification
for the frequencies or sub-band(s) it is intended to operate, following the appropriate measurement methods
given in one or more of the references listed in §2. The Checklist given in Annex A should be used to guide theassessment of the SRD for its conformity with the applicable requirements set out in this Specification.

5.3

Compliance with technical requirements set out in Table 2 shall only be applicable to the types of SRD operations
permitted on an exception basis.

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IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

ANSI C63.10-2013 and
FCC Part 15 §15.241 &§15.242;

Table1-a of this TS;
1

All frequencies≤ 25 μW (e.r.p.)§15.2092

9 – 315 kHz

30 dΒμΑ/m at 10m

EN 302 195

3a

16 – 150 kHz≤ 66 dBμA/m at 10m

Table1-a of this TS

3b

16 – 150 kHz≤ 66 dBμA/m at 10m-

Duty cycle ≤ 10%-

Medical and Biologicaltelemetry

Medical and Biologicaltelemetry;
ULP-AMI and ULP-AMI-P
Inductive applications
including RFID, NFC and EAS
but not ULP-AMI and ULPAMI-P

Table1-a of this TS;

4a

4b
5

2

0.016 – 0.15MHz≤ 100 dBμV/m at 3m

150 – 5000 kHz≤ 13.5 dBμA/m at
10m

150 – 5000 kHz
0.51 – 1.60 MHz≤ 13.5 dBμA/m at
10m≤ 57 dBμV/m at 3m

EN 300 220-1
EN 300 330
EN 300 440
EN 301 839
EN 302 537
EN 302 195

EN 300 330
EN 300 330;-

Wireless power transfer

EN 303 417
3cRecommended
Measurement
Methods

EN 303 417

Table1-a of this TS-

Table1-a of this TS;§15.209

Radio detection, alarmsystemInductive applications
including RFID, NFC and EAS
but not ULP-AMI and ULPAMI-P

Table1-a of this TS;-

Where terms used are unclear, refer to ERC Recommendation 70-03 for description
10

EN 300 330;
FCC Part 15 §15.221
and ANSI C63.10-2013
EN 300 330;

Wireless power transfer

EN 303 417§15.209

EN 300 330

Wireless microphone

EN 303 417
FCC Part 15 §15.221
and ANSI C63.10-2013

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Table1-a of this TS-

Inductive applications
including RFID, NFC and EAS-

Wireless power transfer

6a6765 – 6795 kHz≤ 42 dBμA/m at 10m

6b6765 – 6795 kHz≤ 42 dBμA/m at 10m

Table1-a of this TS;

Recommended
Measurement
Methods
EN 300 330
EN 300 330;

EN 303 417

EN 303 417

77400 – 8800 kHz≤ 9 dBμA/m at 10m

Table1-a of this TS-

Inductive applications
including RFID, NFC and EAS

4410.20 - 11.00 MHz≤ 9 dBuA/m @ 10m

Table1-a of this TS-

Inductive applications andNon-specific SRD

EN 300 330
EN 300 330

EN 300 330;
Table1-a of this TS;
8a13.553 – 13.567 MHz≤ 94 dBμV/m at 10m-

Inductive applications§15.209

EN 302 291-1;
FCC Part 15 §15.225
and ANSI C63.10-2013
EN 300 330;

Table1-a of this TS;
8b13.553 – 13.567 MHz≤ 10 mW (e.r.p.)-

Non-specific SRD§15.209

EN 300 220-1;

Table1-a of this TS;
9a26.96 – 27.28 MHz≤ 500 mW (e.r.p.)-

Model control§15.209
Table1-a of this TS;
9b9c26.96 – 27.28 MHz

26.96 – 27.28 MHz

Non-specific SRD§15.209-

EN 300 224-

11

FCC Part 15 §15.227
and ANSI C63.10-2013
EN 300 220-1;

Duty cycle ≤ 0.1%

≤ 100 mW (e.r.p.)≤ 500 mW (e.r.p.)

FCC Part 15 §15.225
and ANSI C63.10-2013

On-site radio paging system

FCC Part 15 §15.227
and ANSI C63.10-2013
EN 300 224

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Recommended
Measurement
Methods

1029.70 – 30.00 MHz≤ 10 mW (e.r.p.)

Table1-a of this TS;

Bandwidth ≤ 50 kHz

Wireless microphones on atuning range basis

EN 300 422

1134.995 – 35.225 MHz≤ 100 mW (e.r.p.)

Table1-a of thisTS

Bandwidth 10 kHz

Control of flying models

EN 300 220-1

1240.50 – 41.00 MHz≤ 0.01 mW (e.r.p.)

Table1-a of this TS

Medical and Biologicaltelemetry

EN 300 220-1-

EN 300 220-1;

Table1-a of this TS;
13a40.66 – 40.70 MHz≤ 10 mW (e.r.p.)-

Non-specific SRD-

On-site radio paging system§15.20913b

40.66 – 40.70 MHz≤ 500 mW (e.r.p.)

EN 300 224
Table1-a of this TS

13c40.66 – 40.70 MHz

Model control§15.209

16a

72.080 MHz

16b

72.200 MHz-≤ 1000 mW (e.r.p.)

Table1-a of this TS

16c

72.400 MHz

16d

72.600 MHz

17

72.13 – 72.21 MHz≤ 500 mW (e.r.p.)§15.20918a

88.00 – 108.00 MHz≤ 42.2 dBμV/m at
10m

Table1-a of this TS

12

EN 300 224
EN 300 220-1

Bandwidth 10 kHz≤ 100 mW (e.r.p.)

FCC Part 15 §15.229
and ANSI C63.10-2013

FCC Part 15 §15.231
and ANSI C63.10-2013

Channel spacing 12.5
kHz, 20 kHz and 25 kHz

Wireless modem, data
communication system

EN 300 390 /EN 300 113-

Intermittent/Periodictransmission of control
signals

FCC Part 15 15.231 andANSI C63.10-2013

Bandwidth ≤ 200 kHz

Cordless audio devices

EN 301 357

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions§15.20918b

88.00 – 108.00 MHz≤ 60 dBμV/m at 10m

19146.35 – 146.50 MHz≤ 100 mW (e.r.p.)

Additional Spectrum
Access Conditions

21a

158.275/162.875 MHz

EN 300 220-1;
FCC Part 15 §15.239
and ANSI C63.10-2013
EN 300 220-1;

Non-specific SRD-

Intermittent/Periodictransmission of control
signals, radio detection-

On-site radio paging system

EN 300 224§15.209151.125 MHz
151.150 MHz

Recommended
Measurement
Methods-

Table1-a of this TS;

20

Application Types2

FCC Part 15 §15.231
and ANSI C63.10-2013≤ 1000 mW (e.r.p.)

EN 300 224≤ 1000 mW (e.r.p.)

Table1-a of this TS

Channel spacing 12.5
kHz, 20 kHz and 25 kHz

Wireless modem, data
communication system

EN 300 390 /EN 300 113

21b158.325/162.925 MHz

22a

169.40 – 169.475 MHz≤ 500 mW (e.r.p.)

Table1-a of this TS

Bandwidth ≤ 50 kHz

ALD

EN 300 422

22b169.40 – 175.00 MHz≤ 10 mW (e.r.p.)

Table1-a of this TS

Bandwidth ≤ 50 kHz

ALD on a tuning range basis

EN 300 422

22c

169.40 – 175.00 MHz≤ 500 mW (e.r.p.)

Table1-a of this TS

Bandwidth ≤ 50 kHz
Duty cycle ≤ 10%

Meter reading

EN 300 220-1

22d

169.40 – 175.00 MHz

Table1-a of this TS

Duty cycle ≤ 1%

Non-specific SRD

EN 300 220-1

23a

180.00 – 200.00 MHz≤ 10 mW (e.r.p.)

Table1-a of this TS

Bandwidth ≤ 50 kHz

ALD on a tuning range basis23b180.00 – 200.00 MHz≤ 50 mW (e.r.p.)

Table1-a of this TS-

Wireless microphones

24

216.00 – 217.00 MHz> 25 μW to≤ 100 mW (e.r.p.)

Table1-a of this TS-

Medical and Biologicaltelemetry

25a240.15 – 240.30 MHz≤ 100 mW (e.r.p.)≤ 10 mW (e.r.p.)

Table1-a of this TS;

13-

EN 300 422
EN 300 422
EN 300 220-1
EN 300 220-1;

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions§15.209

Additional Spectrum
Access Conditions

Application Types2

FCC Part 15 §15.231
and ANSI C63.10-2013-25b

300.00 – 300.30 MHz-

25c

312.00 – 316.00 MHz-

25d

444.40 – 444.80 MHz-

26a

433.05 – 434.79 MHz≤ 10 mW (e.r.p.)

Table1-a of this TS26b

433.05 – 434.79 MHz≤ 1 mW (e.r.p.)

Table1-a of this TS-

26c433.05 – 434.79 MHz≤ 10 mW (e.r.p.)§15.209-26d

433.05 – 434.79 MHz≤ 10 mW (e.r.p.)§15.209-

Duty cycle ≤ 10%
for bandwidth overentire band

Recommended
Measurement
Methods

Intermittent/Periodictransmission of control
signals, radio detection

Non-specific SRD

EN 300 220-1

Non-specific SRD

EN 300 220-1

Intermittent/Periodictransmission of control
signals
RFID for commercial
shipping containers
Comments to application:

FCC Part 15 15.231 andANSI C63.10-2013

FCC Part 15 §15.240
and ANSI C63.10-2013

Limited to areas such as
ports, rail terminals andwarehouses
27a470.00 – 534.00 MHz≤ 50 mW (e.r.p.)27b487.00 – 507.00 MHz≤ 112 dBμV/m at
10m

27c

534.00 – 614.00 MHz

EN 300 220-1 /EN 300 422;

Table1-a of this TS;-

Wireless microphone
FCC Part 15 §15.236/ FCC Part 74H and
ANSI C63.10-2013§15.209≤ 10 mW (e.r.p.)14

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
Power

27d

614.00 – 698.00 MHz≤ 50 mW (e.r.p.)

29

866 – 869 MHz3

≤ 500 mW (e.r.p.)

Transmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Table1-a of this TS-

Tracking, tracing and dataacquisition including
LPWAN4, RFID

Table1-a of this TS;
30a

917 – 925 MHz≤ 500 mW (e.r.p.)§15.209

Table1-a of this TS;
30b

917 – 925 MHz≤ 500 mW (e.r.p.)§15.209

Bandwidth ≤ 400 kHz;
Only allowed to transmit
for not longer thannecessary to complete
the intended operation
Duty cycle ≤ 10% for
network access points;
Suitable mitigation
techniques are to be
employed5
Duty cycle ≤ 1%

917 – 925 MHz≤ 100 mW (e.r.p.)§15.20930d

917 – 925 MHz≤ 100 mW (e.r.p.)§15.209

Suitable mitigation
techniques are to be
employed
Suitable mitigation
techniques are to be
employed

EN 302 208 /EN 300 220-1;
EN 302 208 /EN 300 220-1;

RFID
FCC Part 15 §15.247
and ANSI C63.10-2013
Non-LPWAN end devices,
LPWAN network accesspoints

EN 300 220-1;
FCC Part 15 §15.247
and ANSI C63.10-2013
EN 300 220-1;

Table1-a of this TS;
30c

Recommended
Measurement
Methods

LPWAN end devices

Non-specific SRD

FCC Part 15 §15.247
and ANSI C63.10-2013
FCC Part 15 §15.249
and ANSI C63.10-2013
EN 300 440;

Table1-a of this TS;
32a2.4000 – 2.4835 GHz≤ 10 mW (e.i.r.p.)§15.209

3

Provision for operating in 866-869 MHz is under review with the intent to refarm
Refers to non-cellular LPWAN. Examples are Sigfox, LoRa etc.
5Refer to ECC Report 181, “Improving Spectrum Efficiency in the SRD Bands” for suitable mitigation techniques
15
4Non-specific SRD

FCC Part 15 §15.247 /§15.249 and ANSI
C63.10-2013

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Recommended
Measurement
Methods
EN 300 440;32b2.4000 – 2.4835 GHz≤ 25 mW (e.i.r.p.)

Table1-a of this TS-

Radio-determination
devices32c

2.4000 – 2.4835 GHz≤ 100 mW (e.i.r.p.)

Table1-a of this TS-

RFID, model control,
wireless video, hearing aid

FCC Part 15 §15.247 /§15.249 and ANSI
C63.10-2013
EN 300 328-

Wideband Data
Transmission equipment
such asBluetooth, Zigbee devices

Table1-a of this TS;
32d2.4000 – 2.4835 GHz≤ 100 mW (e.i.r.p.)§15.209

Table1-a of this TS
32e2.4000 – 2.4835 GHz≤ 200 mW (e.i.r.p.)§15.20933a

5.150 – 5.350 GHz> 100 mW (e.i.r.p.)≤ 200 mW (e.i.r.p.)

Bandwidth not specified
Adequate spectrum
sharing mechanism (e.g.
LBT, DAA) shall be
implemented
For wideband
modulations other than
FHSS, PSD ≤ 10
mW/MHzTable1-a of this TS;§15.407

16

FCC Part 15 §15.247
and ANSI C63.10-2013

EN 300 328
RLAN

FCC Part 15 §15.247
and ANSI C63.10-2013

Operation in 5.15-5.25
GHz under this provisionneed not employ TPC
and DFS.
Operation in 5.25- 5.35
GHz under this provision

FCC Part 15 §15.247 /§15.249 and ANSI
C63.10-2013
EN 300 440;

EN 301 893;
RLAN

FCC Part15 §15.407
and ANSI C63.10-2013

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

33b

Authorised Frequency
Bands / Frequencies

5.150 – 5.350 GHz

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Table1-a of this TS;

shall employ TPC andDFS
Operation in 5.15-5.25
GHz under this provisionneed not employ TPC
and DFS.
Operation in 5.25- 5.35
GHz under this provision
shall employ DFS≤ 100 mW (e.i.r.p.)§15.407

Table1-a of this TS;
34

5.470 – 5.725 GHz≤ 1000 mW (e.i.r.p.)§15.407
Table1-a of this TS

35

5.725 – 5.850 GHz≤ 1000 mW (e.i.r.p.)§15.209 / §15.407

Operation under thisprovision shall employ
TPC and DFS
Operation under thisprovision shall employ
TPC and DFS-

Application Types2

Recommended
Measurement
Methods

EN 301 893;
RLAN

FCC Part15 §15.407
and ANSI C63.10-2013
EN 301 893;

RLAN

FCC Part15 §15.407
and ANSI C63.10-2013
EN 302 502

RLAN / Fixed Broadband
Systems

FCC Part 15 §15.247 /§15.407 and ANSI
C63.10-2013
EN 300 440;

Table1-a of this TS;
36a5.725 – 5.875 GHz≤ 100 mW (e.i.r.p.)-

Non-specific SRD§15.209

Table1-a of this TS36b

5.725 – 5.875 GHz≤ 100 mW (e.i.r.p.)§15.20917

Max. occupied
bandwidth ≥ 1 MHz and≤ 20 MHz
Adequate spectrum
sharing mechanisms(e.g. DFS and DAA) shallbe implemented
APC is able to reduce
the e.i.r.p. to ≤ 25 mW

FCC Part 15 §15.247 /§15.249 and ANSI
C63.10-2013
EN 303 258;

Wireless Industrial
Applications (WIA)

FCC Part 15 §15.247 /§15.249 and ANSI
C63.10-2013

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Table1-a of this TS
45a5.945 – 6.425 GHz≤ 25 mW (e.i.r.p)§15.209

Additional Spectrum
Access Conditions

Adequate spectrum
sharing mechanism shallbe implemented /Employ contentionbased protocol
Maximum mean EIRP
density of 1dBm/MHz
or 10dBm/MHz for
narrowband usage

Application Types2

Recommended
Measurement
Methods

RLAN
Comments to application:
Very Low Power (VLP)
devicesUse on unmanned aircraft
systems/drones is
prohibited

EN 303 687;

FCC Part 15E

RLAN
Comments to application:
Low Power Indoor (LPI)

Table1-a of this TS
45b

5.945 – 6.425 GHz≤ 250mW (e.i.r.p)§15.209

Adequate spectrum
sharing mechanism shallbe implemented /Employ contentionbased protocol
Maximum mean EIRP
density of 11dBm/MHz

Outdoor use, including inroad vehicles, is not
permitted.
An LPI access point or
bridge that is supplied
power from a wired
connection, has anintegrated antenna and is
not battery powered.
An LPI client device that isconnected to an LPI accesspoint or another LPI client18

EN 303 687;

FCC Part 15E

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Recommended
Measurement
Methods

and may or may not bebattery powered37

10.50 – 10.55 GHz≤ 117 dΒμV/m at
10m

EN 300 440;

Table1-a of this TS;§15.209

Radio-determination
devices38a38b24.00 – 24.25 GHz
24.00 – 24.25 GHz≤ 100 mW (e.i.r.p.)≤ 100 mW (e.i.r.p.)

Table1-a of this TS
Table1-a of this TS-

Automotive radars
Tank level probing radar
Non-specific SRD

38c24.00 – 24.25 GHz≤ 100 mW (e.i.r.p.)

Table1-a of this TS-

39a

57 – 64 GHz≤100 mW (e.i.r.p)

Table1-a of this TS-

Comments to application:
Radar gun devices are notallowed to operate under
this provision
Tank level probing radar

39b

57 – 64 GHz≤100 mW (e.i.r.p)-

Non-specific SRD

Table1-a of this TS;§15.209

FCC Part 15 §15.245
and ANSI C63.10-2013
EN 302 858
EN 302 372

EN 300 440

EN 302 372
EN 305 550
FCC Part 15 §15.255
and ANSI C63.10-2013

Adequate spectrum
sharing mechanism shallbe implemented
40

57 – 66 GHz≤ 10 W (e.i.r.p)

Table1-a of this TS

Adaptivity (medium
access protocol) shall be
implemented (LBT)RLAN

EN 305 550 /EN 302 567

Maximum mean EIRP
density of 13dBm/MHz
41

76 – 77 GHz≤ 55 dBm peak(e.i.r.p.), ≤ 23.5 dBmaverage (e.i.r.p.) for
pulse radar

Table1-a of this TS;
FCC Part 95 Subpart
M
19-

Radar equipment for fixed
infrastructure TTT andground based vehicle
applications

EN 301 091-1, -2;
FCC Part 95 Subpart M

IMDA TS SRD (Sep 2023)

6. Table 1: Technical Requirements for Short Range Devices (SRD)
T1
Sub-band

Authorised Frequency
Bands / Frequencies

Maximum Field
Strength / RF Output
PowerTransmitter
Spurious Emissions

Additional Spectrum
Access Conditions

Application Types2

Recommended
Measurement
Methods≤ 55 dBm peak(e.i.r.p.), ≤ 50 dBm
average (e.i.r.p.) for
all other radar types
Table1-a of this TS;
4243

122 – 123 GHz

244 – 246 GHz≤ 100 mW (e.i.r.p.)≤ 100 mW (e.i.r.p.)

FCC Part 15§15.258
Table1-a of this TS;

EN 305 550
Non-specific SRD
FCC Part 15 §15.258
EN 305 550
Non-specific SRD

FCC Part 15§15.258

FCC Part 15 §15.258

20

IMDA TS SRD (Sep 2023)

7. Table 1-a: Category B of Spurious Domain Emission Limits(ITU-R Rec. SM.329-12 §4.3, Table 3)
Type of SRD
SRD operating
below 30 MHz

Limits29 – 10 log( f (kHz)/9) dB(μA/m) at 10 m for 9 kHz < f < 10 MHz–1 dBμA/m at 10 m for 10 MHz < f < 30 MHz–36 dBm for 30 MHz ≤ except frequencies below < 1 GHz–54 dBm for  within the bands 47-74 MHz, 87.5-118 MHz, 174-230 MHz, 470-862 MHz–30 dBm for 1 GHz ≤ f < (see ITU-R Rec. SM.329-12 §2.5)

SRD operating
above 30 MHz–36 dBm for 9 kHz ≤ except frequencies below< 1 GHz–54 dBm for f within the bands 47-74 MHz, 87.5-118 MHz, 174-230 MHz, 470-862 MHz–30 dBm for 1 GHz ≤ f < (see ITU-R Rec. SM.329-12 §2.5)

8. Table 2: Technical Requirements for Short Range Devices (SRD) – Operation Requires Approval
T2
Subband

Authorised Frequency
Bands / Frequencies

Maximum Field Strength/ RF Output power1

170.275 MHz
170.375 MHz
173.575 MHz
173.675 MHz≤ 1000 mW (e.r.p.)§15.209

FCC Part 15 §15.231 andANSI C63.10-20132

26.96 – 27.28 MHz
40.66 – 40.70 MHz> 500 mW (e.r.p.)≤ 3000 mW (e.r.p.)

Table1-a of this TS

EN 300 224

151.125 MHz
151.150 MHz>1000 mW (e.r.p.)≤ 3000 mW (e.r.p.)

Table1-a of this TS

EN 300 224

920 – 925 MHz> 500 mW (e.r.p.)≤ 2000 mW (e.r.p.)§15.209

FCC Part 15 §15.245 and
ANSI C63.10-2013

3

4

Transmitter Spurious
Emissions

Recommended
Measurement Methods

21

Application Types

Remarks

Remote control of
cranes and loadingarms

Operating under these provisions
may be approved on an
exceptional basis.

On-site radio paging
systemOperating under these provisions
may be approved on an
exceptional basis.

Radio Frequency
Identification (RFID)
systems

Only RFID systems may beallowed to use this provision andapproved on an exceptional
basis.

IMDA TS SRD (Sep 2023)

8. Table 2: Technical Requirements for Short Range Devices (SRD) – Operation Requires Approval
T2
Subband5

6

Authorised Frequency
Bands / Frequencies

5.725 – 5.850 GHz

57.1 – 62.9 GHz

Maximum Field Strength/ RF Output power

Transmitter Spurious
Emissions

Table1-a of this TS

EN 300 220-1 and -2; or EN
302 208§15.209

FCC Part 15 §15.247 and
ANSI C63.10-2013> 1000 mW (e.i.r.p.)≤ 4000 mW (e.i.r.p.)> 40dBm (e.i.r.p.)≤ 55dBm (e.i.r.p.)

Recommended
Measurement Methods§15.407

FCC Part15 §15.407 and
ANSI C63.10-2013

Table1-a of this TS

EN 302 217-2

22

Application Types

Wireless LAN andbroadband accessFixed point systems

Remarks

Operating under this provision
may be approved on an
exceptional basis.

Operating under this provision
may be approved on an
exceptional basis.

IMDA TS SRD (Sep 2023)

Annex A : Conformity Assessment Checklist for SRD
Suppliers/testers should use this Checklist to guide their conformity assessment of the SRDs.
It is mandatory that the “Measured Value(s)” and “Ref Clause No.” columns be completed, whilst for item 3, 4 or 5, these two columns are to be completed contingent on whichmeasurement method is deemed appropriate for the equipment under test.
“Measured Values” shall be within the max field strength or RF output power limits indicated in the corresponding sub-band given in Table 1 of the TS SRD. Table 2 sets out provisions
that may only be applied on an exception basis.
“Ref Clause No.” identifies the reference standard and clause number where measurement method is based.
“CR” indicates the “Compliance Requirement”, “M” means Mandatory, and “C” means Conditional, which is contingent on supplier’s claimed function of that equipment.
IMDA TSSRD §Description

Measured Value(s)Ref Clause No.

CR

1.3

The SRD is classified for (a) fixed; (b)mobile; or (c) portable use.

Please indicate.

M

1.3

The SRD comes with (a) a RF output
connector and dedicated antenna; or(b) an integral antenna.

Please indicate.

M

4.1

The SRD must not have any external orreadily accessible control for
adjustment of its operation that canaffect its compliance with the IMDA TS
SRD.

Please indicate Yes or No.

M

4.2.1

EMC shall be assessed accordingly to
the SRD classification indicated in §1.3.

C

4.2.2

Where applicable, equipment safety
testing or assessment shall be
performed to requirements defined in
IEC 62368-1.

C

5

IMDA authorised frequency band(s) or
frequencies

Indicate either TS SRD Table 1 or 2,
and sub-band no.

M

Operating frequency range(s) or
frequency over which equipment istransmitting

Shall be within the frequency band
indicated by the sub-band no.

M

23

Conditions

Applicable only to electrical andelectronic equipment within the field ofaudio, video and information andcommunication technology

IMDA TS SRD (Sep 2023)
IMDA TSSRD §Description

Measured Value(s)Ref Clause No.

CR

Conditions

ERP or EIRPC

ERP applies to transmitters operating
below 1 GHz
EIRP applies to transmitters operating
above 1 GHz

H-field or E-field measurement

C

H-field measurement applies to
inductive loop coil transmitters only

Power Spectral Density

C

Unwanted emissions in the spurious
domainM

Spectrum access techniquesC

24

For example, equipment using FHSS,
LBT, DAA, AFA, Duty cycle, APC, OCW,OBW restrictions, etc.

IMDA TS SRD (Sep 2023)

Annex B : Addendum/Corrigendum
Revised TS
Items Changed
Section (§)
Changes to IMDA TS SRD, Issue 1r2, Aug 2021
The IMDA TS SRD Issue 1 Revision 3 (April 2023) has replaced the IMDA TS SRD Issue 1 Revision 2(Aug 2021).
§4.2.2
Table 1(3b, 4b, 6b)
Table 1(44)
Table 1(8b)
Table 1(13a)
Table 1(13c)
Table 1
(14b)
Table 1
(15)
Table 1(23a)
Table 1
(23b)
Table 1(27a, 27c, 27d)
Table 1(28)
Table 1(30a, 30b, 30c, 30d)
Table 1(31)
Table 1(33b)
Table 1(35)
Table 1(41)
Table 1(42)
Table 1(43)
Table 1(45a, 45b)
Table 2
(6)Effective Date

Sep 23

Changes to equipment safety specifications
Listing of additional ETSI standard EN 300 330
Added band 10.20-11 MHz
The max field strength for 13.553-13.567 MHz has been revised
from 94 dBμV/m at 10m to max RF output power 10mW (e.r.p.)
The max field strength for 40.66-40.7 MHz has been revised from 65
dBμV/m at 10m to max RF output power 10mW (e.r.p.)
Replace 14a by 13c
Amended band from 40.665-40.695 MHz to 40.66-40.70 MHz
Removed; subsumed under 13a
Removed; band 40.77-40.83 MHz removed
The max field strength for 180.00-200.00 MHz from 112dBuV/m at
10m to max RF output power 10mW (e.r.p.)
The max field strength for 180.00-200.00 MHz from 112dBuV/m at
10m to max RF output power 50mW (e.r.p.)
Replaced 27
1 Sep 23
Renumbered to 27b
Amended band from 920-925 MHz to 917-925 MHz
Removed; band 1427.00-1432.00 MHz removed
Amended access conditions for operation in 5.15-5.25 GHz from“need not employ DFS” to “need not employ TPC and DFS”
Amended application type from “Wireless LAN and broadband
access” to “RLAN / Fixed Broadband Systems”
Does not distinct if vehicle is in motion or stationary
Amended max RF output power
Added band 122-123 GHz
Added band 244-246 GHz
Added band 5.945 – 6.425 GHz
Added 57-63 GHz

25

IMDA TS SRD (Sep 2023)

Revised TS
Items Changed
Section (§)
Changes to IMDA TS SRD, Issue 1r1, April 2018
The IMDA TS SRD Issue 1 Revision 2 (Aug 2021) has replaced the IMDA TS SRD Issue 1 Revision 1(April 2018).
The Specification has been revised to cater for wider variety of SRD applications coexisting in thefrequency sharing environment to the extent possible by implementing different criteria forspectrum access.
§1.1

Deleted Table 2 from § 1.1 to emphasise that the main intent of thisSpecification is to lay down requirements and spectrum accessconditions in Table 1 for allowing coexistence of all kinds of SRD,
wherever possible, and hence, added “restricted conditions” after“corresponding output power levels”.

§1.4

Added text to further clarify the use of Table 2:“SRDs … may only be allowed to operate to requirements given in
Table 2 on an exception basis.”§4.2

Added “Equipment Safety Requirements” to § 4.2 and new § 4.2.2
for “Equipment safety testing”, applicable to SRD powered bydedicated power supply (charger/power adapter).

§4.2.1.2§5.1 & 5.2

CISPR 35 to replace CISPR 24.
Removed citing of Table 2 in § 5.1 and 5.2 to separate the use of
Table 2 from Table 1.

Effective Date

Aug 21

10 Aug 21§ 5.2 also indicated that “Checklist given in Annex A should be used
as a guide for assessment of the SRD for conformity with applicablerequirements set out in this Specification.”§5.3

Added to clarify that:“Table 2 may only be applicable to the types of SRD operations
permitted on an exception basis.”Table 1

List of items is now ordered in ascending frequency bands.
A column on “Additional Spectrum Access Conditions” has been
added to Table 1 to provide clarity of conditions for frequency bandsharing.
See Annex B1 for detailed changes to Table 1.

Page

2

Revised TS
Items Changed
SectionChanges to IMDA TS SRD, Issue 1, October 2016
The IMDA TS SRD Issue 1 Revision 1 (April 2018) has replaced the
IMDA TS SRD Issue 1 (October 2016).
§1 & §2

Changes are intended to provide updates to the reference
standards and clarity in generic as well as specific conformity
assessment requirements for use of SRD applications, in line withstandards development taken place in the related Standards
Development Organisations.
26

Effective Date

1 Apr 18

IMDA TS SRD (Sep 2023)

Page

Revised TS
Items Changed
SectionChanges to IMDA TS SRD, Issue 1, October 20162

8 – 1513

11 & 12

14

15

Responding to technological and market developments in SRDs,deleted the text “Short range devices are intended forcommunications in confined areas of buildings as well as for
localised on-site operations.”§1.1

1 Apr 18

There no changes to the technical requirements captured in §5 of this Specification,
except for the following:§5 Table 1§5 Table 1§5 Table 1-a§5 Table 2

Corresponding to the editorial change in §1.1, under provisions of
items 25, 27 to 30, also removed the need for non-localised
operations to be approved on exceptional basis.
Removed provisions for SRD usage of the 450-470 MHz frequency
band under items 14 and 17, as service relocation is taking effectfrom 1 April 2018.

§3.2

1 Apr 18

Streamlined spurious emission requirements for SRDs to align withcategory B limits defined in §4.3 Table 3 of the ITU-R Rec. SM.32912.
Removed provisions for SRD usage of the 450-470 MHz frequency
band under item 1, as service relocation is taking effect from 1
April 2018.

Revised TS
Items Changed
Page
SectionChanges to IDA TS SRD, Issue 1 Rev 7, April 2013
The IMDA TS SRD Issue 1 (October 2016) has replaced the IDA TS SRD
Issue 1 Rev 7 (April 2013).
6

Effective Date

Changes are largely editorial to provide updates and clarity in theapplication of EMC requirements, in line with standards developmentthat has taken place in the Standards Development Organisations
concerned.

27

Date of Issue

1 Oct 16

IMDA TS SRD (Sep 2023)
Page
3
3
3
5
5
6
9

TS Ref.
Table 1
(1)
Table 1
(3)
Table 1
(9)
Table 1
(14)
Table 1
(16)
Table 1
(23)
Table 1(31)

Items Changed
Changes to IDA TS SRD, Issue 1 Rev 6, May 11
The max field strength for 16 – 150 kHz has been revised from 66 dBμA/m@ 3m to 66 dBμA/m @ 10m
Listing of additional ETSI standard - EN 302 291-1
Listing of additional ETSI standard - EN 300 422-1
Allow max field strength of Medical Telemetry applications operating in
the range 9 – 315 kHz up to 30 dBμA/m @10m.
Listing of additional ETSI standard - EN 301 839-1 and EN 302 537-1
Listing of additional ETSI standard - EN 302 288-1
Listing of additional ETSI standard - EN 305 550-1
Changes to IDA TS SRD, Issue 1 Rev 5, Apr 11
Change of IDA’s address at cover page to Mapletree Business City.

Page

TS Ref.

4

Table 1
(1)

10

Table 1(30)

Items Changed
Changes to IDA TS SRD, Issue 1 Rev 4, Jul 09
Inclusion of reference to EN 300 330-1 – Technical Characteristics andTest Methods for Radio equipment in the frequency range 9 kHz to 25
MHz and inductive loop systems
in the frequency range 9 kHz to 30 MHz
The band 5.470 – 5.725 GHz at ≤ 1000 mW (e.i.r.p.) is an additionalfrequency allocation for Wireless LAN / broadband access applications.

10

Table 1
(31)

The band 57 – 66 GHz at ≤ 10W (e.i.r.p) is an additional frequency
allocation for Wireless LAN / broadband access applications.

Page

TS Ref.

--

4

Table 1

10

Table 2Items Changed
Changes to IDA TS SRD, Issue 1 Rev 3, Jan 08
Changes are purely editorial in nature. The Short Range Devices (SRD)
requiring IDA’s approval for operation are listed separately in Table 2 forbetter clarity.
Short Range Devices (SRD) which does not require IDA’s approval for
operation remain in Table 1. Those that require IDA’s approval are
extracted and listed in Table 2
The following are Short Range Devices (SRD) which require IDA’s approvalfor operation ≤ 1000 mW (e.r.p.):170.275 MHz
170.375 MHz
173.575 MHz
173.675 MHz
451.750 MHz
452.000 MHz
452.050 MHz
452.325 MHz
26.96 – 27.28 MHz > 500 mW (e.r.p.)
40.66 – 40.70 MHz ≤ 3000 mW (e.r.p.)
151.125 MHz >1000 mW (e.r.p.)
151.150 MHz ≤ 3000 mW (e.r.p.)
920 – 925 MHz > 500 mW (e.r.p.)≤ 2000 mW (e.r.p.)5.725 – 5.850 GHz > 1000 mW (e.i.r.p.)≤ 4000 mW (e.i.r.p.)
28

Effective Date
25 Apr 13
25 Apr 13
25 Apr 13
25 Apr 13
25 Apr 13
25 Apr 13
25 Apr 13

1 May 11
Effective Date
1 Apr 111 Apr 111 Apr 11

Effective Date
July 09

July 09

July 09

July 09
July 09
July 09
July 09

IMDA TS SRD (Sep 2023)

Page

TS Ref.

4

Table 1

4

Table 1
(1)

Items Changed
Changes to IDA TS SRD, Issue 1 Rev 2, Aug 06
Provisions have been revised in line with the Schedule to theTelecommunications (Exemption from sections 33, 34(1)(b) and 35)(Amendment) Notification 2008.
The following are additional frequency allocations that may be used for
induction loop and RFID systems:(a) 0.150 – 5.00 MHz, ≤ 13.5 dBμA/m @ 10m(b) 6.765 – 6.795 MHz, ≤ 42 dBμA/m @ 10m(c) 7.400 – 8.800 MHz, ≤ 9 dBμA/m @ 10m
Please note that the unit for field strength has been standardised to magnetic
field strength: the former 0.016 – 0.15 MHz, ≤ 100 dBμV/m @ 3m has been
replaced by 0.016 – 0.15 MHz, ≤ 66 dBμA/m @ 3m.
4

Table 1(4)

Frequency band 312.00 - 315.00 MHz has been changed to312.00 - 316.00 MHz.

4

Table 1
(8)

The band 470.00 – 806.00 MHz at ≤ 10 mW (e.r.p.) is an additional frequency
allocation for wireless microphones applications.

4

Table 1
(9)

The band 169.40 – 175.00 MHz at ≤ 500 mW (e.r.p.) is an additionalfrequency allocation for hearing/audio assistance aids applications.

5

Table 1
(10)RF output power for the 26.96 – 27.28 MHz band for remote control devices
applications has been increased to ≤ 100 mW (e.r.p.).
The following are additional frequency allocations that may be used forremote control devices applications:(a) 34.995 – 35.225 MHz, ≤ 100 mW (e.r.p.)(b) 40.665 – 40.695 MHz, ≤ 500 mW (e.r.p.)(c) 40.770 – 40.830 MHz, ≤ 500 mW (e.r.p.)(d) 72.130 – 72.210 MHz, ≤ 500 mW (e.r.p.)
6

Table 1
(15)

The following are additional frequency allocations that may be used for
medical telemetry applications:(a) 216.00 – 217.00 MHz, ≤ 100 mW (e.r.p.)(b) 1427.00 – 1432.00 MHz, ≤ 100 mW (e.r.p.)(c) All frequencies at ≤ 25 µW
7

Table 1(20)

Frequency band 433.79 - 434.79 MHz has been changed to 433.05 – 434.79
MHz

29

Effective
Date
2 Jan 08

IMDA TS SRD (Sep 2023)
Page

TS Ref.

4 and 7

Table 1
(4),
1(20)
And
1(21)

Items Changed
Changes to IDA TS SRD, Issue 1 Rev 1, Jul 05
Provisions have been revised in line with the Schedule to theTelecommunications (Exemption from sections 33, 34(1)(b) and 35)(Amendment) Notification 2006:a.
b.

Effective
Date
Jun 06314.7 – 315 MHz frequency band revised to 312 – 315 MHz
923 – 925 MHz frequency band revised to 920 – 925 MHz

5Table 1
(10)

Amended remark:“Use of remote controls of aircraft and glider models is subject to IDA’slicensing.”

Jun 06

7

Table 1(25)

Provision to operate in the 630 – 710 MHz band is deleted from theSpecification.

Jun 06Page

TS Ref.

─

─

8

Table
1(30),
And1(31)Changes are mainly editorial in nature. The essential technical requirements
for conformity assessment remain unchanged.

Page

TS Ref.

Items Changed

─

─

─

─

Items Changed
Changes to IDA TS SRD, Issue 1, Dec 04
Specification has been reissued as IDA TS SRD Issue 1 Rev 1.

Changes to IDA TS 5 to TS 14, TS SRRS and TS WLAN
This Specification supersedes the following IDA Type ApprovalSpecifications:a. IDA TS 5 Issue 1 Rev 5
b. IDA TS 6 Issue 1 Rev 3
c. IDA TS 7 Issue 1 Rev 3
d. IDA TS 8 Issue 1 Rev 3
e. IDA TS 9 Issue 1 Rev 3
f. IDA TS 10 Issue 1 Rev 8
g. IDA TS 11 Issue 1 Rev 4
h. IDA TS 12 Issue 1 Rev 3
i. IDA TS 13 Issue 1 Rev 6
j. IDA TS 14 Issue 1 Rev 5
k. IDA TS SRRS Issue 1
l. IDA TS WLAN Issue 1 Rev 11
Title of Specification has been renamed as “Technical Specification for
Short Range Devices” (IDA TS SRD Issue 1).

Effective
Date
21 Jul 05
21 Jul 05

Effective
Date
1 Dec 04

1 Dec 04

Changes are mainly editorial in nature and carried out to streamline theessential technical requirements for compliance.
The few changes in technical requirements are summarised below.
6

TS SRD
Table 1(1)Maximum output power for induction loop systems has been revised from“100 dBμV/m at 30 m” to “100 dBμV/m at 3 m” in line with the Schedule to30

1 Dec 04

IMDA TS SRD (Sep 2023)
Page

TS Ref.

Items Changed

Effective
Date

Changes to IDA TS 5 to TS 14, TS SRRS and TS WLAN
the Telecommunications (Exemption from sections 33, 34(1)(b) and 35)
Notification.
6

TS SRD
Table 1(6)Maximum output power has been revised from “57 dBμV/m at 3 m” to “65dBμV/m at 10 m” in line with the Schedule to the Telecommunications(Exemption from sections 33, 34(1)(b) and 35) Notification.

1 Dec 046

TS SRD
Table 1(8)Maximum output power has been revised from “60 dBμV/m at 10 m” to“112 dBμV/m at 10 m” in line with the Schedule to theTelecommunications (Exemption from sections 33, 34(1)(b) and 35)
Notification.

1 Dec 048

TS SRD
Table
1(14)
And
1(15)

Maximum output power has been revised from “20 dBμV/m at 15 m” to“0.01 mW ERP” and from “54 dBμV/m at 30 m” to “2 mW ERP” in line with
the Schedule to the Telecommunications (Exemption from sections 33,
34(1)(b) and 35) Notification.

1 Dec 04Page

TS Ref.

Items Changed

9

TS SRD
Table
1(19)
1(20)
And
1(21)

Changes to IDA TS 5 to TS 14, TS SRRS and TS WLAN
Provisions have been revised for RFID applications as follows [The Scheduleto the Telecommunications (Exemption from sections 33, 34(1)(b) and 35)(Amendment) Notification 2004]:

Effective
Date
2 Nov 04

a. 866.1 – 869 MHz frequency band revised to 866 – 869 MHz
b. 924 – 925 MHz frequency band revised to 923 – 925 MHz
c. Output power limit for both bands increased from 10 mW ERP to 500
mW ERPFor RFID applications in the 923 – 925 MHz frequency band, output power
up to 2 W ERP is allowed, subject to IDA’s licensing.

10

TS SRD
Table
1(27),
1(28) and
1(29)

─

─

Changes to IDA TS 5 to TS 14, TS SRRS and TS WLAN
Provisions for WLAN operating in 2.4 GHz and 5.8 GHz frequency bands
have been revised as follows [The Schedule to the Telecommunications(Exemption from sections 33, 34(1)(b) and 35) (Amendment) Notification2004]:
a. Output power limit for 2.4000 – 2.4835 GHz band increased from 100
mW EIRP to 200 mW EIRPb. Output power limit for 5.725 – 5.850 GHz band increased from 100
mW EIRP to 1 W EIRPc. Output power limit of 4 W EIRP is allowed for operations in the 5.725– 5.850 GHz band, subject to IDA’s licensing.
Provisions given in IDA TS 10 for mobile phone sensors to operate in the
824 – 915 MHz and 1710 – 1910 MHz bands are deleted from thisSpecification.

31

1 Dec 04

1 Dec 04

IMDA TS SRD (Sep 2023)

Annex B1 : Detailed changes to IMDA TS SRD Issue 1 Revision 1 in Table 1
New
numbering
1
2

Frequency bands
All frequencies
9 – 315 kHz

Last revision
numbering
16
14a

3a

16 – 150 kHz

1a

3b
3c
4a
4b
5
6a

16 – 150 kHz
16 – 150 kHz
150 – 5000 kHz
150 – 5000 kHz
0.51 – 1.60 MHz
6765 – 6795 kHz

New
2
1b
New
5
1c

6b
7

6765 – 6795 kHz
7400 – 8800 kHz

New
1d

8a

13.553 – 13.567 MHz

3

8b
9a

13.553 – 13.567 MHz
26.96 – 27.28 MHz

3
10a

9b
9c
10

26.96 – 27.28 MHz
26.96 – 27.28 MHz
29.70 – 30.00 MHz

New
12a
11b

11
12
13a
13b
14a
14b

34.995 – 35.225 MHz
40.50 – 41.00 MHz
40.66 – 40.70 MHz
40.66 – 40.70 MHz
40.665 – 40.695 MHz
40.665 – 40.695 MHz

10b
14b
6
12b
New
10c

15
16a, b, c, d40.77 – 40.83MHz
72.080 MHz, 72.200 MHz,72.400 MHz, 72.600 MHz
72.13 – 72.21 MHz
88.00 – 108.00 MHz

17

17
18a

10e
7

Changes
Added Duty cycle ≤ 10%
Added ‘ULP-AMI and ULP-AMI-P’ as application type
Added ‘not ULP-AMI and ULP-AMI-P’ in application
types
Included ‘Wireless power transfer’ as application type
Included ‘Wireless power transfer’ as application type
Changed ‘inductive loop/RFID applications’ to ‘inductive
applications’Included ‘Wireless power transfer’ as application type
Changed ‘inductive loop/RFID applications’ to ‘inductive
applications’
Changed ‘close range inductive’ to ‘inductive
applications’Added FCC Part 15 §15.225 as reference standard
Generalised to ‘model control’;
Added FCC Part 15 §15.227 as reference standard
Included ‘Non-specific SRD’ as application type
Removed EN 300 433 as reference standard
Changed application types to ‘Wireless microphones ona tuning range basis’;
Output power limited to 10mW (e.r.p.)
Changed application types to ‘Control of flying models’
Replaced ‘wireless microphone’ with ‘non-specific SRD’
Included ‘Model control’ as application type
Maximum output power reduced to 10mW;
FCC reference standard changed to Part 15 §15.229
Added Access conditions
Changed application type from ‘Wireless microphone’ to‘Cordless audio devices’;
Power limit reduced to ≤ 42.2 dBμV/m at 10m;

18b
19

20
21a, b22a
22b88.00 – 108.00 MHz
146.35 – 146.50 MHz

151.125 MHz
151.150 MHz
158.275/162.875 MHz;158.325/162.925 MHz
169.40 – 169.475 MHz
169.40 – 175.00 MHz

7
4aChanged ETSI reference standard to EN 301 357
Added ‘Non-specific SRD’ as application type
Added FCC Part 15 §15.231 as reference standard;

13

Added ‘Intermittent/Periodic transmission of control
signals’ as application type-

17

Added new access conditions

9a9aFrequency range to move out of ‘Application types’
Power limit reduced to 10mW
32

IMDA TS SRD (Sep 2023)
22c
22d
23a
23b
24
25a, b, c, d

26a
26b

169.40 – 175.00 MHz
169.40 – 175.00 MHz
180.00 – 200.00 MHz
180.00 – 200.00 MHz
216.00 – 217.00 MHz
240.15 – 240.30 MHz;
300.00 – 300.30 MHz;
312.00 – 316.00 MHz;444.40 – 444.80 MHz
433.05 – 434.79 MHz
433.05 – 434.79 MHz

26c

New
9a
9b
9b
14c
4b, c, d, eIncluded ‘Meter reading’ as application type
Max power for ‘Non-specific SRD’ reduced to 10mW
Added access conditions for ALD on a tuning range basis
Added FCC Part 15 §15.231 as reference standard;
Added ‘Intermittent/Periodic transmission of control
signals’ as application type
Included ‘Non-specific SRD’ as application type but has
lower max output power limit (1mW)
Included ‘Intermittent/Periodic transmission of control
signals’ as application type;

19
19
New

433.05 – 434.79 MHz
26d

Added FCC Part 15 §15.231 as reference standard
Included ‘RFID for commercial shipping containers,
limited to areas such as ports, rail terminals andwarehouses’ as application type;New
433.05 – 434.79 MHz

27

Added FCC Part 15 §15.240 as reference standard
Changed frequency bands from ‘470.00 – 806.00 MHz’to ‘470.00 – 698.00 MHz’;

8470.00 – 698.00 MHz

28
29
30a

487.00 – 507.00 MHz
866 – 869 MHz

Added EN 300 422 as reference standard;
Added FCC Part 15 §15.236 as reference standard;
Added FCC Part 15 §15.236 as reference standard
Added EN 300 220-1 as reference standard
Added EN 302 208 / EN 300 220-1 as reference standard
for RFID applications;

9c
20a
20b

920 – 925 MHz

30b

Added access conditions;
Used FCC Part 15 §15.247 instead of Part 15 §15.249
Included access conditions for network access points;

20b
920 – 925 MHz

30c

Added EN 300 220-1 as reference standard;
Used FCC Part 15 §15.247 instead of Part 15 §15.249
Power limit reduced to 100mW;

20b

Included access conditions for devices communicatingwith network access points;

920 – 925 MHz

Added EN 300 220-1 as reference standard;

30d
31
32a

920 – 925 MHz
1427.00 – 1432.00 MHz

Used FCC Part 15 §15.247 instead of Part 15 §15.249
Included ‘Non-specific SRD’ as application typeMax output power information moved to correctcolumn;New
15
24

2.4000 – 2.4835 GHz
32b

21

Included FCC reference standards
Reduced max output power from 100mW to 25mW;

21

Included FCC reference standards
Application types defined

2.4000 – 2.4835 GHz
32c

2.4000 – 2.4835 GHz

33

IMDA TS SRD (Sep 2023)-> RFID, model control, wireless video, hearing aid;

32d

Included FCC reference standards
Used ‘Wideband Data Transmission equipment’ todefine application types

24
2.4000 – 2.4835 GHz

32e
33a
33b
34
35

2.4000 – 2.4835 GHz
5.150 – 5.350 GHz
5.150 – 5.350 GHz
5.470 – 5.725 GHz

Added FCC Part 15 §15.247 as reference standard
Added access conditions
Added EN 302 502 as reference standard;

25
28
29
30
27

5.725 – 5.850 GHz
36a

26

Added access conditions
Frequency band changed from ‘5.725 – 5.850 GHz to‘5.725 – 5.875 GHz’;

New

Added FCC Part 15 §15.247 as reference standard
Included ‘Wireless Industrial Applications (WIA)’ asapplication type;5.725 – 5.875 GHz
36b
5.725 – 5.875 GHz
37

Added access conditions
Added FCC Part 15 §15.245 as reference standard;

22
10.50 – 10.55 GHz

38a
38b
38c
39a
39b
40
41

24.00 – 24.25 GHz
24.00 – 24.25 GHz
24.00 – 24.25 GHz
57 – 64 GHz
57 – 64 GHz
57 – 66 GHz
76 – 77 GHz

Application type defined more clearlyApplication type defined more clearly
Included ‘Tank level probing radar’ as application type
Included ‘Non-specific SRD’ as application type
Included ‘Tank level probing radar’ as application type
Included ‘Non-specific SRD’ as application type
Added additional access conditions
Adopted average power for both vehicle in motion andwhen stationary

23
New
New
New
New
31
18

34