SIST EN 301 797:2001

SLOVENSKI STANDARD
01-september-2001
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Electromagnetic compatibility and Radio Spectrum Matters (ERM); Harmonized EN for
CT2 cordless telephone equipment covering essential requirements under article 3.2 of
the R&TTE directive
Ta slovenski standard je istoveten z: EN 301 797 Version 1.1.1
ICS:
33.100.99 Drugi vidiki v zvezi z EMC Other aspects related to
EMC
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Candidate Harmonized European Standard (Telecommunications series)
Electromagnetic compatibility
and Radio Spectrum Matters (ERM);
Harmonized EN for
CT2 cordless telephone equipment
covering essential requirements
under article 3.2 of the R&TTE directive

2 ETSI EN 301 797 V1.1.1 (2000-09)
Reference
DEN/ERM-TG13-001-2
Keywords
CT, CT2, radio, regulation
ETSI
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© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI
3 ETSI EN 301 797 V1.1.1 (2000-09)
Contents
Intellectual Property Rights.6
Foreword.6
Introduction .7
1 Scope .9
2 References .9
3 Definitions and abbreviations.10
3.1 Definitions.10
3.2 Abbreviations .10
4 Radio frequency interface.11
4.1 General .11
4.2 Channel frequencies.11
4.2.1 Channel centre frequencies.11
4.2.2 Channel frequency accuracy.11
4.2.3 Rate of change of transmit centre frequency .11
4.2.4 CTA access .11
4.3 Signalling strategy.11
4.3.1 CTA access .11
4.3.2 Signalling whilst in the communication state .11
4.3.3 Signalling outside the communication state.11
4.4 Dynamic channel allocation strategy.12
4.4.1 Incoming calls .12
4.4.2 Outgoing calls .12
4.4.3 Channel selection strategies.12
4.4.4 Free channel .12
4.4.4.1 Free channel selection for primary services .12
4.4.4.2 Free channel selection for secondary services.13
4.5 Radio transmitters.13
4.5.1 RF power .13
4.5.1.1 Maximum RF power .13
4.5.2 Modulation.13
4.5.3 Transmitter burst envelope .14
4.5.3.1 Amplitude.14
4.5.3.2 Synchronization of transmitter burst envelopes .14
4.5.4 Adjacent channel power (narrow band).14
4.5.5 Out of band power arising from transmitter transients .14
4.5.6 Intermodulation attenuation.14
4.6 Radio receivers.14
4.6.1 Sensitivity .14
4.6.1.1 Receiver sensitivity for CFP or CPP using an integral or supplied antenna.15
4.6.1.2 Receiver sensitivity with a 50 ohm connector.15
4.7 Combined radio transmitter/receivers .15
4.7.1 Adverse power supply conditions.15
4.7.2 Spurious emissions of the combined transmitter/receiver.15
4.8 Termination of the communication state .15
4.8.1 Clear down signal sequence.15
4.8.2 Cessation of RF activity.15
4.8.3 Off-line timing.16
4.9 Channel scanning .16
4.9.1 Response times .16
4.9.1.1 Outgoing .16
4.9.1.2 Incoming .16
4.10 Controls .16
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4 ETSI EN 301 797 V1.1.1 (2000-09)
5 Radio frequency parametric and system tests .16
5.1 Test conditions, power sources and ambient temperatures.16
5.1.1 Normal and extreme test conditions.16
5.1.2 Test power source .16
5.1.3 Normal test conditions .17
5.1.3.1 Normal temperature and humidity .17
5.1.3.2 Normal test power source.17
5.1.3.2.1 Mains voltage .17
5.1.3.2.2 Regulated lead acid battery power sources.17
5.1.3.2.3 Nickel cadmium battery.17
5.1.3.2.4 Other power sources .17
5.1.4 Extreme test conditions.17
5.1.4.1 Extreme temperatures.17
5.1.4.2 Extreme test source voltages.17
5.1.4.2.1 Mains voltage .17
5.1.4.2.2 Regulated lead acid battery power sources.18
5.1.4.2.3 Nickel cadmium battery.18
5.1.4.2.4 Other power sources .18
5.1.5 Procedure for tests at extreme temperatures .18
5.2 Electrical test conditions .18
5.2.1 Arrangements for signals to be applied to the fixed and portable receivers .18
5.2.2 Artificial antenna .19
5.2.3 Test fixture for integral antenna.19
5.2.4 Test site and general arrangements for measurements involving the use of radiated fields.19
5.2.4.1 Outdoor test site .19
5.2.4.2 Test antenna .19
5.2.4.3 Substitution antenna.20
5.2.4.4 Optional additional indoor site.20
5.2.5 Combined transmitter/receiver test facility.21
5.2.6 Guidance on the use of radiation test sites.21
5.2.7 Further optional alternative indoor test site using an anechoic chamber .21
5.2.8 Test frequencies .21
5.3 Transmitter .22
5.3.1 Transmitter carrier power .22
5.3.1.1 Definition .22
5.3.1.2 Method of measurement for equipment with an antenna connection.22
5.3.1.3 Method of measurement for equipment with an integral antenna .22
5.3.1.3.1 Method of measurement under normal test conditions.22
5.3.1.3.2 Method of measurement under extreme test conditions.23
5.3.1.4 Limits .23
5.3.2 Adjacent channel power (narrow-band).23
5.3.2.1 Definition .23
5.3.2.2 Method of measurement.23
5.3.2.3 Limits .24
5.3.3 Out of band power arising from transmitter transients .24
5.3.3.1 Definition .24
5.3.3.2 Method of measurement.24
5.3.3.3 Limits .24
5.3.4 Intermodulation attenuation.24
5.3.4.1 Definition .24
5.3.4.2 Method of measurement.24
5.3.4.3 Limits .25
5.3.5 Prevention of mis-operation due to adverse power supply conditions.25
5.3.5.1 Definition .25
5.3.5.2 Method of measurement.25
5.3.5.3 Limits .25
5.4 Spurious emissions.25
5.4.1 Spurious emissions of the combined transmitter/receiver.25
5.4.1.1 Definition .25
5.4.1.2 Method of measuring the power level, subclause 5.4.1.1, (1).26
5.4.1.3 Method of measuring the effective radiated power, subclause 5.4.1.1, (2).26
5.4.1.4 Limits .26
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5 ETSI EN 301 797 V1.1.1 (2000-09)
5.5 Radio frequency system operation .27
5.5.1 Definitions .27
5.5.2 Channel frequencies.27
5.5.2.1 Ability to receive when the carrier frequency is up to ±10 kHz from nominal.27
5.5.2.2 Ability to receive when carrier frequency is varying at a rate of up to 1 kHz/ms.27
5.5.3 Dynamic RF channel allocation strategy .27
5.5.3.1 No channel is occupied .27
5.5.3.2 One channel only below the threshold .27
5.5.3.3 All channels occupied .27
5.5.4 RF modulation .27
5.5.4.1 Peak frequency deviation: transmission.27
5.5.4.2 Peak frequency deviation: reception .28
5.5.5 RF envelope.28
5.5.5.1 Transmitter output: ramp-down .28
5.5.5.2 Transmitter output: ramp-up .28
5.5.5.3 CPP transmit amplitude during off period .28
5.5.5.4 CFP transmit amplitude during off period .28
5.5.6 Radio receiver sensitivity.28
5.5.6.1 Raw bit error rate .28
5.6 Transmitter modulation .29
5.7 Power supply units .29
5.8 Declarations by the manufacturer.30
5.9 Identification .30
Annex A (normative): The EN Requirements Table (EN-RT) .31
Annex B (normative): Accuracy of measurement.33
B.1 Radio frequency parametric and system tests .33
History .34
ETSI
6 ETSI EN 301 797 V1.1.1 (2000-09)
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://www.etsi.org/ipr).
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 Candidate Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical
Committee Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [7] laying down a procedure for the provision of information in the field of technical
standards and regulations.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC [1] of the European Parliament and
of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive").
National transposition dates
Date of adoption of this EN: 21 July 2000
Date of latest announcement of this EN (doa): 31 October 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 April 2001
Date of withdrawal of any conflicting National Standard (dow): 30 April 2001
ETSI
7 ETSI EN 301 797 V1.1.1 (2000-09)
Introduction
The present document is part of a set of standards designed to fit in a modular structure to cover all radio and
telecommunications terminal equipment under the R&TTE Directive [1]. Each standard is a module in the structure.
The modular structure is shown in figure 1.
Disability*
3.3f
Emergency*
3.3e
Fraud*
3.3d
3.3c
Privacy*
No harm to the network*
3.3b
* If needed
Scoped by
Inter-working via the network*
equipment
3.3a class or type
Inter-working with the network
Use of spectrum
3.2
New radio harmonised standards
Spectrum
Scoped by frequency and/or equipment type
Radio Product EMC
Existing EMC standards to be replaced
by a new, single, multi-part standard
3.1b
EMC
Generic and product standards also notified under EMC Directive
New standards for human exposure to Electromagnetic Fields
and, if needed, new standards for acoustic safety
3.1a
Standards also notified under LV Directive
Safety
Non-radio Radio (RE)
TTE Non-TTE
Figure 1: Modular structure for the various standards used under the R&TTE Directive [1]
ETSI
8 ETSI EN 301 797 V1.1.1 (2000-09)
The left hand edge of the figure 1 shows the different subclauses of Article 3 of the R&TTE Directive [1].
For article 3.3 various horizontal boxes are shown. Dotted lines indicate that at the time of publication of the present
document essential requirements in these areas have to be adopted by the Commission. If such essential requirements
are adopted, and as far and as long as they are applicable, they will justify individual standards whose scope is likely to
be specified by function or interface type.
The vertical boxes show the standards under article 3.2 for the use of the radio spectrum by radio equipment. The
scopes of these standards are specified either by frequency (normally in the case where frequency bands are
harmonized) or by radio equipment type.
For article 3.1b the diagram shows the new single multi-part product EMC standard for radio, and the existing
collection of generic and product standards currently used under the EMC Directive [2]. The parts of this new standard
will become available in the second half of 2000, and the existing separate product EMC standards will be used until it
is available.
For article 3.1a the diagram shows the existing safety standards currently used under the LV Directive [3] and new
standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be
required.
The bottom of the figure shows the relationship of the standards to radio equipment and telecommunications terminal
equipment. A particular equipment may be radio equipment, telecommunications terminal equipment or both. A radio
spectrum standard will apply if it is radio equipment. An article 3.3 standard will apply as well only if the relevant
essential requirement under the R&TTE Directive [1] is adopted by the Commission and if the equipment in question is
covered by the scope of the corresponding standard. Thus, depending on the nature of the equipment, the essential
requirements under the R&TTE Directive [1] may be covered in a set of standards.
The modularity principle has been taken because:
- it minimizes the number of standards needed. Because equipment may, in fact, have multiple interfaces and
functions it is not practicable to produce a single standard for each possible combination of functions that may
occur inanequipment;
- it provides scope for standards to be added:
- under article 3.2 when new frequency bands are agreed; or
- under article 3.3 should the Commission take the necessary decisions;
without requiring alteration of standards that are already published;
- it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity
assessment.
ETSI
9 ETSI EN 301 797 V1.1.1 (2000-09)
1 Scope
The present document applies to CT2 cordless telephone terminal equipment.
CT2 telephone terminal equipment is capable of operating in all or any part of the frequency bands given below:
Table 1: Cordless Telephone service frequency bands
Cordless Telephone service frequency bands
Transmit CT2 864,1 MHz to 868,1 MHz
Receive CT2 864,1 MHz to 868,1 MHz
It shall be noted that the above frequency bands are not harmonized throughout the community.
The existence of this Harmonized Standard does not imply the availability of the above frequency spectrum for the
particular types of equipment covered by the present document.
The present document is intended to cover the provisions of Directive 1999/5/EC [1] (R&TTE Directive) Article 3.2,
which states that "…. radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference."
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of Article 3 of the R&TTE Directive [1] will apply to equipment within the scope of the present
document.
NOTE: A list of such ENs is included on the web site http://www.newapproach.org.
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, edition number, Version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest Version applies.
• A non-specific reference to an ETS shall also be taken to refer to later Versions published as an EN with the
same number.
[1] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition of their
conformity (R&TTE Directive).
[2] Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of the Member
States relating to electromagnetic compatibility (EMC Directive).
[3] Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of the
Member States relating to electrical equipment designed for use within certain voltage limits
(LV Directive).
[4] ETSI I-ETS 300 131 (1994): "Radio Equipment and Systems (RES); Common air interface
specification to be used for the interworking between cordless telephone apparatus in the frequency
band 864,1 MHz to 868,1 MHz, including public access services".
[5] ETSI ETS 300 086 (1991): "Radio Equipment and Systems (RES); Land mobile group; Technical
characteristics and test conditions for radio equipment with an internal or external RF connector
intended primarily for analogue speech".
ETSI
10 ETSI EN 301 797 V1.1.1 (2000-09)
[6] ETSI ETR 028 (1994): "Radio Equipment and Systems (RES); Uncertainties in the measurement
of mobile radio equipment characteristics".
[7] Directive 98/34/EC of the European Parliament and of the Council of 22 June 1998 laying down a
procedure for the provision of information in the field of technical standards and regulations.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions in the R&TTE Directive [1], and the following
terms and definitions apply:
active mode: any mode of operation of a CFP or CPP in which the CFP or CPP is transmitting only or transmitting and
receiving.
communication state: phase of a call between link set up and link termination.
idle mode: any mode of operation of a CFP or CPP which is not the active mode.
PACKET: layer two entity comprising Address Code Word and any following Data Code Words transmitted as a
single unit over which the signalling protocol may operate.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AFC Automatic Frequency Control
BER Bit Error Ratio
CAI Common Air Interface
CFP Cordless Fixed Part
CIS CFP Information and Status codeword
CPP Cordless Portable Part.
CT2 Second Generation Cordless Telephone
CTA Cordless Telephone Apparatus
EMC Electro-Magnetic Compatibility
f Nominal Channel Centre Frequency
c
FSK Frequency Shift Keying
LV Low Voltage
MUX1.2 Signalling Multiplex Mode 1 (two-bit signalling)
MUX1.4 Signalling Multiplex Mode 1 (four-bit signalling)
MUX2 Signalling Multiplex Mode 2
MUX3 Signalling Multiplex Mode 3
NPSS Normal Power Secondary Service
PCM Pulse Code Modulation
PSTN Public Switched Telephone Network
R&TTE Radio and Telecommunications Terminal Equipment
RE Radio Equipment
RF Radio Frequency
RFP Radio Fixed Part
SABM_ACK Layer two acknowledgment to SABM. Unless otherwise stated, SABM_ACK refers to either the
basic or extended form of the message.
TTE Telecommunications Terminal Equipment
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11 ETSI EN 301 797 V1.1.1 (2000-09)
4 Radio frequency interface
4.1 General
Clause 4 covers the minimum RF performance and RF system requirements for cordless telephone equipment which
permit, by radio means, some or all of the functions of a normal telephone apparatus and comprises one or more single
PSTN line fixed parts, one or more antenna systems, and one or more cordless portable parts. Test conditions for
parameters defined in this clause are specified in clause 5.
NOTE: In clause 4, communication is taken to be the CFP and CPP interchanging either control, or speech, or
both.
4.2 Channel frequencies
4.2.1 Channel centre frequencies
In countries where the frequency band is available, the channel centre frequencies for the forty CT2 channels shall be
864,050 MHz + (0,100 x n) MHz, where n is the channel number, lying in the range 1 to 40 inclusive. The first channel
(channel number one) lies at 864,150 MHz and the last (channel number forty) at 868,050 MHz.
4.2.2 Channel frequency accuracy
The channel frequency accuracy required of both the CFP and CPP transmitters shall be ±10 kHz maximum difference
between the nominal and actual channel centre frequencies over supply voltage and temperature ranges. AFC may be used
in the receiver at both CFP and CPP but may only be linked to control the transmitter centre frequency at the CPP.
4.2.3 Rate of change of transmit centre frequency
The maximum rate of change of transmit centre frequency at both CFP and CPP shall not exceed 1 kHz/ms, except for the
specific cases of switching of the CPP transmitter from MUX3 to MUX2 and for channel changing.
4.2.4 CTA access
The CTA shall have access to all radio channels defined in subclause 4.2.1.
4.3 Signalling strategy
The supplier shall declare that the signalling strategy complies with each subclause of 4.3.
4.3.1 CTA access
The CTA shall have access to the full number of allocated channels and make use of any free channel when signalling to
establish a communication channel.
4.3.2 Signalling whilst in the communication state
Signalling whilst in the communication state shall be limited to the same radio channel as is used for communication.
4.3.3 Signalling outside the communication state
Signalling outside the communication state shall only be allowed for the purposes of subclause 4.4 and limited in duration
by the requirements of subclauses 4.9.1.
ETSI
12 ETSI EN 301 797 V1.1.1 (2000-09)
4.4 Dynamic channel allocation strategy
The supplier shall declare that the signalling strategy complies with each subclause of 4.4.
4.4.1 Incoming calls
When an incoming call is detected by the CFP it shall choose a free channel over which to signal, using its handshake, to
the CPP. The CPP upon detection and recognition of this handshake shall respond on this chosen channel with a signal
using its handshake. The CFP, upon detection and recognition of this response, shall in conjunction with the CPP establish
the communication link.
If the above link establishment is unsuccessful then the CFP may make re-attempts, sequentially, on the subsequent free
channels. These re-attempts shall be restricted to using a maximum of five free channels and shall be constrained by the
requirements of subclauses 4.4.4 and 4.9.1.2.
4.4.2 Outgoing calls
When a CPP is requested to make an outgoing call it shall choose a free radio channel over which to signal for a maximum
period of 5 s, using its handshake, to the CFP. The CFP, upon detection of this matching handshake shall respond on this
chosen channel with a signal using its handshake. The CPP, upon detection and recognition of this response, shall in
conjunction with the CFP establish the communications link.
If the above channel acquisition is unsuccessful then the CPP may make re-attempts, sequentially, on the subsequent
free channels. These re-attempts shall be restricted to using a maximum of five free channels and shall be constrained
by the requirements of subclauses 4.4.4 and 4.9.1.1.
4.4.3 Channel selection strategies
Manufacturers shall use such selection strategies as to ensure random utilization of the radio channels defined in
subclause 4.2.1.
4.4.4 Free channel
The primary usage of CT2 CAI is for voice telephony. The radio interface may also be used for other purposes. These
secondary uses include CIS transmissions (subclause 6.8.2 of I-ETS 300 131 [4]) and data services. Different free
channel selection algorithms apply for primary and secondary services. All uses not specified as secondary services in
the text of the present document may be considered as primary services.
4.4.4.1 Free channel selection for primary services
The decision as to whether a channel is free shall be made on the basis of intermittent or continuous monitoring for a
period of time between 200 ms and 2 s. If intermittent monitoring is used the decision shall be based upon a minimum
of five distributed samples which should be taken such that the peak level over a period sufficient to cover both halves
of a MUX1 or MUX2 frame is recorded. Monitoring shall be performed to a nominal resolution of 6 dB or better over
this period. The decision on whether a channel is free shall be considered valid only during the period of 2 s
immediately following the end of the monitoring period.
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13 ETSI EN 301 797 V1.1.1 (2000-09)
A free channel is defined as the following:
1) any channel with a local field strength below an absolute maximum of 40 dB relative to 1 µ V/m; or
2) where all channels are above 40 dB relative to 1 µ V/m, then any channel which has the lowest field strength of
all channels defined in subclause 4.2.1 as measured, by intermittent or continuous monitoring, to a nominal
resolution of 6 dB or better;
but may exclude any channels on which an unsuccessful attempt has been made to establish communications for that
call. If an externally synchronized RFP or nested RFP is able to make a valid free channel assessment in the transmit
window then the RFP should exclude from its free channel assessment any channels which on a basis of at least one
sample per channel, record a peak level of 79 dBµ V/m or greater in its transmit window. Alternatively where the
channel usage of all the synchronous RFPs in a network or nest are known then those channels which are reported as
locally in use should be excluded.
4.4.4.2 Free channel selection for secondary services
The CFP or CPP shall select a free channel for secondary service in accordance with the channel selection criteria in
subclause 4.4.4.1; however, further restrictions for channel selection shall apply:
1) a channel shall not be selected if the local field strength is measured above 56 dB relative to 1 µ V/m;
2) a channel may only be selected for transmission at the low power level (see subclause 4.5.1.3 of
I-ETS 300 131 [4]) if the measured field strength on both the selected channel and the immediately adjacent
channels does not exceed 56 dB relative to 1 µ V/m. If a secondary service channel assessment occurs during a
communications link, and a SABM_ACK with NPSS = 1 (see subclause 6.5.6.6 of I-ETS 300 131 [4]) has been
received by the CPP, the CPP shall not select a channel which is only available for low power use;
3) a channel may only be selected for transmission at the normal power level if the measured field strength on both
the selected channel and the immediately adjacent channels does not exceed 50 dB relative to 1 µ V/m.
For CFPs only, the above two thresholds may be varied to suit local operating conditions, but the values used shall not
exceed those specified above by more than 3 dB.
NOTE: There is only one adjacent channel for channel numbers 1 and 40.
4.5 Radio transmitters
4.5.1 RF power
4.5.1.1 Maximum RF power
The transmitter carrier output power or effective radiated power (see subclause 5.3.1) under normal test conditions and
under extreme test conditions shall not exceed 10 mW.
4.5.2 Modulation
The modulation employed shall be 2-level FSK shaped by an approximately Gaussian filter to meet the requirements of
subclause 4.5.4. The peak frequency deviation under all possible data patterns shall lie between 14,4 kHz and 25,2 kHz.
A binary 1 shall be encoded as a frequency higher than the carrier frequency (fc+ f); a binary 0 shall be encoded as a
frequency lower than the carrier frequency (fc - f). fc is the RF carrier frequency and f is the deviation.
The designation of the specified emission, according to article 4 of the Radio Regulations is 100KF7WCT.
ETSI
14 ETSI EN 301 797 V1.1.1 (2000-09)
4.5.3 Transmitter burst envelope
4.5.3.1 Amplitude
The amplitude of the RF envelope at the start of the first valid bit to be transmitted shall be within 3 dB of the final
amplitude of the burst, as shown in figure 2.
The amplitude of the CPP RF envelope 2 bit periods prior to the start of the first bit to b
...