ETSI EN 302 536-1 V1.1.1 (2007-11)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment in the frequency range 315 kHz to 600 kHz; Part 1: Technical characteristics and test methods
Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment in the frequency range 315 kHz to 600 kHz; Part 1: Technical characteristics and test methods
DEN/ERM-TG30-004-1
Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) - Naprave kratkega dosega (SRD) - Radijska oprema, ki deluje v frekvenčnem območju od 315 kHz do 600 kHz - 1. del: Tehnične karakteristike in preskusne metode
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.YHQþQHPPHWRGHElectromagnetic compatibility and Radio spectrum Matters (ERM) - Short Range Devices (SRD) - Radio equipment in the frequency range 315 kHz to 600 kHz - Part 1: Technical characteristics and test methods33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 302 536-1 Version 1.1.1SIST EN 302 536-1 V1.1.1:2008en01-maj-2008SIST EN 302 536-1 V1.1.1:2008SLOVENSKI
STANDARD
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 2
Reference DEN/ERM-TG30-004-1 Keywords inductive, magnetic, SRD, testing ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2007. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 302 536-1 V1.1.1:2008
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Contents Intellectual Property Rights.6 Foreword.6 1 Scope.7 2 References.7 3 Definitions, symbols and abbreviations.7 3.1 Definitions.7 3.2 Symbols.8 3.3 Abbreviations.8 4 Essential requirements and specifications.9 4.1 General requirements.9 4.1.1 Transmitter requirements.9 4.1.2 Receiver requirements.9 4.2 Presentation of equipment for testing purposes.9 4.2.1 Choice of model for testing.9 4.2.2 Testing of equipment with alternative power levels.9 4.2.3 Testing of equipment that does not have an external 50 Ω RF connector (integral antenna equipment).10 4.2.3.1 Equipment with an internal permanent or temporary antenna connector.10 4.2.3.2 Equipment with a temporary antenna connector.10 4.2.3.3 Equipment intended to be implanted in the body.10 4.3 Mechanical and electrical design.10 4.3.1 General.10 4.3.2 Controls.10 4.3.3 Transmitter shut-off facility.10 4.3.4 Receiver power save capability.10 4.4 Declarations by the provider.11 4.5 Auxiliary test equipment.11 4.6 Interpretation of the measurement results.11 5 Test conditions, power sources and ambient temperatures.11 5.1 Normal and extreme test conditions.11 5.2 Test power source.11 5.2.1 External test power source.11 5.2.2 Internal test power source.12 5.3 Normal test conditions.12 5.3.1 Normal temperature and humidity.12 5.3.2 Normal test power source.12 5.3.2.1 Mains voltage.12 5.3.2.2 Regulated lead-acid battery power sources.13 5.3.2.3 Other power sources.13 5.4 Extreme test conditions.13 5.4.1 Extreme temperatures.13 5.4.1.1 Procedure for tests at extreme temperatures.13 5.4.1.2 Procedure for equipment designed for continuous operation.13 5.4.1.3 Procedure for equipment designed for intermittent operation.13 5.4.1.4 Extreme temperature ranges.14 5.4.2 Extreme test source voltages.14 5.4.2.1 Mains voltage.14 5.4.2.2 Regulated lead-acid battery power sources.14 5.4.2.3 Power sources using other types of batteries.14 5.4.2.4 Other power sources.15 6 General conditions.15 6.1 Normal test signals and test modulation.15 6.1.1 Normal test signals for data.15 SIST EN 302 536-1 V1.1.1:2008
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6.2 Antenna.15 6.2.1 Artificial antenna.16 6.3 Test fixture.16 6.3.1 Alternate test fixture for equipment intended to be implanted within and transmitters worn on the body.16 6.4 Test sites and general arrangements for radiated measurements.16 6.5 Modes of operation of the transmitter.17 7 Measuring receiver.17 8 Transmitter requirements.17 8.1 Transmitter definitions.17 8.1.1 The inductive loop coil transmitters.18 8.1.2 Product classes.18 8.2 Transmitter carrier output levels.18 8.2.1 H-field (radiated).18 8.2.1.1 Definition.18 8.2.1.2 Methods of measurement.19 8.2.1.3 Limits.19 8.2.2 Radiated E-field.19 8.2.2.1 Definition.19 8.2.2.2 Methods of measurement.19 8.2.2.3 Limits.20 8.3 Permitted frequency range of the modulation bandwidth.20 8.3.1 Definition.20 8.3.2 Method of measurement.20 8.3.3 Limits.21 8.4 Spurious emissions.21 8.4.1 Definition.21 8.4.2 Radiated field strength.21 8.4.2.1 Methods of measurement (< 30 MHz).21 8.4.2.2 Limits.21 8.5 Duty cycle.21 8.5.1 Definitions.21 8.5.2 Declaration.22 8.5.3 Limit.22 9 Receiver Requirement.22 9.1 Receiver spurious radiation.22 9.1.1 Definition.22 9.1.2 Methods of measurement.22 9.1.3 Limits.22 10 Measurement uncertainty.22 Annex A (normative): Radiated measurements.24 A.1 Test sites and general arrangements for measurements involving the use of radiated fields.24 A.1.1 Outdoor test site.24 A.1.1.1 Standard position.24 A.1.1.2 Active implant equipment.25 A.1.2 Test antenna.26 A.1.2.1 Below 30 MHz.26 A.2 Guidance on the use of radiation test sites.26 A.2.1 Measuring distance.26 A.2.2 Auxiliary cables.26 Annex B (normative): H-field limit correction factor for generated E-fields.27 Annex C (informative): E-fields in the near field at low frequencies.28 Annex D (normative): H-field measurements and limits at 3 m and 30 m.29 D.1 Limits for measurements at 30 m distance.29 SIST EN 302 536-1 V1.1.1:2008
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D.2 Limits for measurements at 3 m distance.30 Annex E (informative): Bibliography.31 History.32
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Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). For non-EU countries the present document may be used for regulatory (Type Approval) purposes. The present document is part 1 of a multi-part deliverable covering Radio Equipment in the frequency range 315 kHz to 600 kHz for Ultra Low Power Animal Implant Devices and accessory peripheral systems including devices that are intended to be outside the body but in very close proximity to it in normal operation, as identified below: Part 1: "Technical characteristics and test methods"; Part 2: "Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive".
National transposition dates Date of adoption of this EN: 19 October 2007 Date of latest announcement of this EN (doa): 31 January 2008 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 July 2008 Date of withdrawal of any conflicting National Standard (dow): 31 July 2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 7
1 Scope The present document applies to transmitters and receivers of Ultra Low Power Animal Implant Devices (ULP-AID) operating in any part or all of the band from 315 kHz to 600 kHz and any associated radio apparatus transmitting in the frequency range of 315 kHz to 600 kHz including external programmers and related telecommunication devices using digital modulation techniques such as, but not limited to, FSK or pulse position modulation. The present document contains the technical characteristics and test methods for radio equipment and is referenced in CEPT/ERC Recommendation 70-03, annex 12 band(c). The present document does not necessarily include all the characteristics which may be required by a user, nor does it necessarily represent the optimum performance achievable. It is a product standard which may be completely or partially superseded by specific standards covering specific applications. The present document applies to ULP-AID transceivers conforming to the following: • inductive loop systems; • with an antenna connection and/or with an integral antenna; • for use as telecommunications and telecommand transmission to/from implanted animal systems. All types of digital modulation for radio devices are covered by the present document. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • References are either specific (identified by date of publication and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. [1] ITU-T Recommendation O.153: "Basic parameters for the measurement of error performance at bit rates below the primary rate". [2] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics". 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Animal Implant Device: active implant that includes a transmitter, with or without an integral receiver, that operates in the ULP-AID band that is placed inside the body for the purpose of performing diagnostic functions and/or delivery of therapeutic treatment artificial antenna: tuned reduced-radiating dummy load equal to the nominal impedance specified by the provider SIST EN 302 536-1 V1.1.1:2008
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body worn device: physiologic sensor, holter type device, or other physiological data transfer device containing a transmitter or transceiver intended to be operated in close proximity to the animal body, which has its radio antenna external to the body, and is used to sense and/or transfer, via means of radio frequency transmission, physiological parameters or system programming information conducted measurements: measurements which are made using a direct connection to the equipment under test dedicated antenna: removable antenna supplied and tested with the radio equipment that is designed as an indispensable part of the equipment H-field test antenna: electrically screened loop or equivalent antenna, with which the magnetic component of the radio frequency field can be measured integral antenna: permanent fixed antenna, which may be built-in, that is designed as an indispensable part of the equipment magnetic dipole moment: product of (Number of coil turns) × (coil area) × (coil current) NOTE: Air coils only. mobile station: equipment external to the animal body intended to provide communication capability to an active implant device placed within the body programmer/controller: ULP-AID equipment used to communicate with an active implant device radiated measurements: measurements which involve the absolute measurement of a radiated field telecommand: use of radio communication for the transmission of signals to initiate, modify or terminate functions of equipment at a distance telemetry: use of radio communication for transferring data at a distance Ultra Low Power-Animal Implant Device (ULP-AID): ultra low power animal implant transmitter operating in accordance with the provisions of annex 12, band (c), to CEPT/ERC Recommendation 70-03 3.2 Symbols For the purposes of the present document, the following symbols apply: E Electrical field strength f frequency H Magnetic field strength Hef Electric filed strength limit converted from Hf
Hf H field strength limit m magnetic dipole moment P Power R Distance t time 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: AID Animal Implant Device EMC ElectroMagnetic Compatibility EUT Equipment Under Test FSK Frequency Shift Keying RF Radio Frequency R&TTE Radio and Telecommunications Terminal Equipment SRD Short Range Device ULP-AID Ultra Low Power - Animal Implant Device SIST EN 302 536-1 V1.1.1:2008
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4 Essential requirements and specifications 4.1 General requirements 4.1.1 Transmitter requirements
See clause 8 for requirements including measurement procedures. 4.1.2 Receiver requirements See clause 9 for requirements including measurement procedures. 4.2 Presentation of equipment for testing purposes Each equipment submitted for testing shall fulfil the requirements of the present document on all frequencies over which it is intended to operate. Compliance with this requirement shall be shown by testing on the frequency of operation in the band 315 kHz to 600 kHz. If equipment is designed to operate with different carrier powers, measurement of each transmitter parameter shall be performed at the highest power level at which the transmitter is intended to operate. Additionally, the spurious emissions shall be measured at each lower power level setting or at the low, middle, and high power settings for multilevel power control systems.
For third party testing the provider shall complete, if necessary, the appropriate application form when submitting the equipment for testing. In addition, the provider shall declare the range of operating conditions and power requirements as applicable, to establish the appropriate test conditions. Additionally, technical documentation and operating manuals, sufficient to make the test, shall be supplied for all devices operating in the frequency band 315 kHz to 600 kHz. A torso simulator and tissue substitute material for testing ULP-AID devices operating in the frequency band 315 kHz to 600 kHz may be used (see clause 6.3.1).
Measurements shall be performed, according to the present document, on samples of equipment defined in clauses 4.2 through 4.2.3.3. 4.2.1 Choice of model for testing One or more samples of each model or type of transmitter operating in the frequency band 315 kHz to 600 kHz, as appropriate for testing. Any ancillary equipment needed for testing shall be provided as requested by the testing laboratory. If equipment has several optional features, considered not to affect the RF parameters, then the tests need only to be performed on the equipment configured with that combination of features considered to be the most complex or most likely to affect the RF parameters, as proposed by the provider and agreed to by the test laboratory. 4.2.2 Testing of equipment with alternative power levels If equipment is designed to operate with different carrier powers, measurement of each transmitter parameter shall be performed at the highest power level, according to the present document, on samples of equipment defined in clause 4.2.1. Spurious emissions tests shall be performed at all power levels. SIST EN 302 536-1 V1.1.1:2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 10 4.2.3 Testing of equipment that does not have an external 50 Ω RF connector (integral antenna equipment) 4.2.3.1 Equipment with an internal permanent or temporary antenna connector The means to access and/or implement the internal permanent or temporary connector shall be stated by the provider with the aid of a diagram. The fact that use has been made of the internal antenna connection, or of a temporary connection, to facilitate measurements shall be recorded in the test report. No connection shall be made to any internal permanent or temporary antenna connector during the performance of radiated emissions measurements, unless such action forms an essential part of the normal intended operation of the equipment, as declared by the provider. 4.2.3.2 Equipment with a temporary antenna connector The provider may submit one set of equipment with the normal antenna connected, to enable the radiated measurements to be made. He shall attend the test laboratory at the conclusion of the radiated measurements, to disconnect the antenna and fit the temporary connector. The testing laboratory staff shall not connect or disconnect any temporary antenna connector. Alternatively, the provider may submit two sets of equipment to the test laboratory, one fitted with a temporary antenna connector with the antenna disconnected and the other with the antenna connected. Each equipment shall be used for the appropriate tests. The provider shall declare that two sets of equipment are identical in all respects. 4.2.3.3 Equipment intended to be implanted in the body The provider shall submit the equipment, a torso simulator as described in clause 6.3.1 and annex A if the implant is to be tested in a simulator, and a sufficient quantity of tissue substitute material to fill the test fixture. Tissue substitute material shall have dielectric and conductivity properties equivalent to those of animal tissue for the measurement frequency as applicable. The provider and/or test laboratory shall determine and agree on the arrangement of the equipment antenna and any additional device leads on the ULP-AID holding grid within the fixture as prescribed in annex A. 4.3 Mechanical and electrical design 4.3.1 General The equipment submitted by the provider should be designed, constructed and manufactured in accordance with sound engineering practice and with the aim of minimizing harmful interference to other equipment and services. Transmitters and receivers may be individual or combination units. 4.3.2 Controls Those controls which, if maladjusted, might increase the interfering potentialities of the equipment shall not be easily accessible to the user. 4.3.3 Transmitter shut-off facility If the transmitter is equipped with an automatic transmitter shut-off facility, it shall be made inoperative for the duration of the test. 4.3.4 Receiver power save capability If the receiver is equipped with a battery-saving circuit, this circuit shall be made inoperative for the duration of the tests if possible. SIST EN 302 536-1 V1.1.1:2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 11 4.4 Declarations by the provider The performance of the equipment submitted for testing shall be representative of the performance of the corresponding production model. 4.5 Auxiliary test equipment All necessary test signal sources, test fixtures, specialized test apparatus and set-up information shall accompany the equipment when it is submitted for testing unless alternative arrangements are agreed to by the test house and the provider. 4.6 Interpretation of the measurement results The interpretation of the results recorded on the appropriate test report for the measurements described in the present document shall be as follows: • the measured value, determined by extrapolation if needed, relating to the corresponding limit shall be used to decide whether an equipment meets the requirements of the present document; • the measurement uncertainty value for the measurement of each parameter shall be included in the test report; • the recorded value of the measurement uncertainty shall, for each measurement, be equal to, or lower than, the figures in the table of measurement uncertainty (clause 10). 5 Test conditions, power sources and ambient temperatures 5.1 Normal and extreme test conditions Testing shall be performed under normal test conditions, and also, where stated, under extreme test conditions. It should be noted that emissions test on active implant devices may, at the option of the provider, be performed using the torso simulator filled with the tissue substitute material at nominal room temperature. The purpose is to facilitate testing at the measurement facility. Measured emission levels at a nominal room temperature of 22ºC are not expected to vary significantly from actual levels measured on an implanted device The test conditions and procedures shall be as specified in clauses 5.2 to 5.4. 5.2 Test power source The equipment shall be tested using the appropriate test power source as specified in clauses 5.2.1 or 5.2.2. Where equipment can be powered using either external or internal power sources, then the equipment shall be tested using the external power source as specified in clause 5.2.1 then repeated using the internal power source as specified in clause 5.2.2. The test power source used shall be stated in the test report. 5.2.1 External test power source During testing, the power source of the equipment shall be replaced by an external test power source capable of producing normal and extreme test voltages as specified in clauses 5.3.2 and clause 5.4.2. The internal impedance of the external test power source shall be low enough for its effect on the test results to be negligible. For the purpose of the tests, the voltage of the external test power source shall be measured at the input terminals of the equipment. The external test power source shall be suitably de-coupled as close to the equipment battery terminals as practicable. For radiated measurements any external power leads shall be so arranged so as not to affect the measurements. SIST EN 302 536-1 V1.1.1:2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 12 During tests the test power source voltages shall be within a tolerance of < ±1 % relative to the voltage at the beginning of each test. The value of this tolerance can be critical for certain measurements. Using a smaller tolerance will provide a better uncertainty value for these measurements. 5.2.2 Internal test power source For radiated measurements on portable equipment with integral antenna, fully charged internal batteries should be used. The batteries used should be as supplied or recommended by the provider. If internal batteries are used, at the end of each test the voltage shall be within a tolerance of < ±5 % relative to the voltage at the beginning of each test. For devices where the batteries cannot be measured or replaced but have telemetry readout of battery voltage, it is acceptable to record the starting and ending voltages as provided by the telemetry readout. This shall be stated in the test report. If appropriate, for conducted measurements or where a test fixture connected to the RF output port is used, an external power supply at the required voltage may replace the supplied or recommended internal batteries. This shall be stated in the test report. For equipment, intended to be implanted in a body, that is hermetically sealed it may not be possible to measure the battery voltage directly or indirectly. For this type of equipment, it is not necessary to measure the voltage at the end of each test; however, care shall be taken to ensure that the internal battery supply voltage does not fall below the provider's specification for normal operating voltage range. For battery operated devices, it is acceptable to read the battery voltage via telemetry readout. 5.3 Normal test conditions 5.3.1 Normal temperature and humidity The normal temperature and humidity conditions for tests for devices external to the body shall be any convenient combination of temperature and humidity within the following ranges: • temperature +15°C to +37°C; • relative humidity 20 % to 75 %. Active implant transmitters operate after implant in the torso of a body. Accordingly, the body tends to serve as an oven to maintain the implant temperature. The actual temperature will vary as a function of the body but is expected to be near 37°C. Allowing for a variation, the normal temperature and humidity conditions for AID transmitters is within the following ranges: • temperature +34°C to +40°C; • relative humidity not applicable. Measured values are not expected to vary within the above range. When it is impracticable to carry out tests under these conditions, a note to this effect, stating the ambient temperature and relative humidity during the tests, shall be added to the test report. 5.3.2 Normal test power source 5.3.2.1 Mains voltage The normal test voltage for equipment to be connected to the mains shall be the nominal mains voltage. For the purpose of the present document, the nominal voltage shall be the declared voltage, or any of the declared voltages, for which the equipment was designed. The frequency of the test power source corresponding to the ac mains shall be between 49 Hz and 51 Hz. SIST EN 302 536-1 V1.1.1:2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 13 5.3.2.2 Regulated lead-acid battery power sources When the radio equipment is intended for operation with the usual types of regulated lead-acid battery power source, the normal test voltage shall be 1,1 multiplied by the nominal voltage of the battery (e.g. 6 V, 12 V, etc.). 5.3.2.3 Other power sources For operation from other power sources or types of battery (primary or secondary), the normal test voltage shall be that declared by the equipment provider and agreed by the test laboratory. Such values shall be stated in the test report. 5.4 Extreme test conditions 5.4.1 Extreme temperatures 5.4.1.1 Procedure for tests at extreme temperatures Before measurements are made the equipment shall have reached thermal balance in the test chamber. The equipment shall be switched off during the temperature stabilizing period. In the case of equipment containing temperature stabilization circuits designed to operate continuously, the temperature stabilization circuits shall be switched on for 15 minutes after thermal balance has been obtained, and the equipment shall then meet the specified requirements. If the thermal balance is not checked by measurements, a temperature stabilizing period of at least one hour, or such period as may be decided by the test laboratory, shall be allowed. The sequence of measurements shall be chosen, and the humidity content in the test chamber shall be controlled so that excessive condensation does not occur. If the equipment is incapable of transmitting an unmodulated carrier, an actual digital data sequence or a pseudorandom sequence representative of an actual digital data transmission shall be used to modulate the carrier (see clauses 6.1 and 6.1.1). 5.4.1.2 Procedure for equipment designed for continuous operation If the provider states that the equipment is designed for continuous operation, the test procedure shall be as follows: • before conducting tests at the upper extreme temperature the equipment shall be placed in the test chamber and left until thermal balance is attained. The equipment shall then be switched on in the transmit condition for a period of time specified by the provider to be the maximum time the equipment will transmit in normal operation after which the equipment shall meet the specified requirements; • for tests at the lower extreme temperature, the equipment shall be left in the test chamber until thermal balance is attained, then switched on for a period of one minute after which the equipment shall meet the specified requirements. 5.4.1.3 Procedure for equipment designed for intermittent operation If the provider states that the equipment is designed for intermittent operation, the test procedure shall be as follows: • before tests at the upper extreme temperature the equipment shall be placed in the test chamber and left until thermal balance is attained in the oven. The equipment shall then either: - transmit on and off according to the providers declared duty cycle for a period of five minutes; or - if the provider's declared on period exceeds one minute, then transmit in the on condition for a period not exceeding one minute, followed by a period in the off or standby mode for four minutes; after which the equipment shall meet the specified requirements; • for tests at the lower extreme temperature, the equipment shall be left in the test chamber until thermal balance is attained, then switched to the standby or receive condition for one minute after which the equipment shall meet the specified requirements. SIST EN 302 536-1 V1.1.1:2008
ETSI ETSI EN 302 536-1 V1.1.1 (2007-11) 14 5.4.1.4 Extreme temperature ranges For tests at extreme temperatures, measurements shall be made in accordance with the procedures specified in clause 5.4.1.1, at the upper and lower temperatures of one of the following ranges. Table 1: Extreme temperature ranges Category I (General) -20°C to +55°C Category II (Portable equipment for outdoor use) -10°C to +55°C Category III (Equipment for normal indoor use) (see note 1) 0°C to +55°C Category IV (Active implant Device transmitters) (see note 2) +25°C to +45°C NOTE 1: The term "equipment for normal indoor use" is taken to mean that the room temperature is controlled and the minimum indoor temperature is equal to or greater than 5°C. NOTE 2: The term "Active implant transmitters" refers only to equipment that is intended to be placed inside a body during normal operation. The range of +25°C to +45°C is the approximate core body temperature variation over which a body can survive.
The provider may define a different temperature range than specified in table 1 for any category provided the EUT meets the conditions set forth below. For specific applications, the provider can specify wider temperature ranges than given as a minimum in table 1. In this case the test report shall show compliance with the limits in the present document over the extended ranges specified by the provider. This shall be reflected in the providers' product literature. Narrower temperature ranges than given in table 1 may be implemented provided the reduced range is reflected in the manufacturer provider's product literature and the test report shows that the device implements techniques which do not allow it to exceed the limits specified in the present document over the minimum ranges given in table 1. The equipment shall comply with all the technical requirements of the present document at all times when operating within the boundary limits of the requi
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