ETSI EN 300220-1V3.1.1：短距离设备（SRD）25 MHz 至 1000 MHz频段技术特性与测量方法

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"CE无线标准EN_300220_01V3.1.1p是关于短距离设备（SRD）在25 MHz到1000 MHz频段运行的技术特性与测量方法的2016-11版标准。该标准由欧洲电信标准协会(ETSI)发布，旨在规范在这个频率范围内的无线设备操作，确保其安全、有效且兼容性良好。" 本文档，即ETSI EN 300220-1 V3.1.1 (2017-02)，是针对短距离设备（SRD）的标准，涵盖了25 MHz至1000 MHz的频率范围。"Short Range Devices (SRD) operating in the frequency range 25 MHz to 1000 MHz; Part 1: Technical characteristics and methods of measurement"表明了文档的主要内容，即详细定义了在这个频段内工作的无线设备应具备的技术特性，以及如何进行合规性测试。 "ISM"标签可能指代工业、科学和医疗(ISM)频段，这些频段在全球范围内被规定用于无需许可的无线通信，例如蓝牙、Wi-Fi和其他低功率无线应用。在这些频段内，设备必须遵守特定的规则以避免干扰其他合法用户。文档中的关键词"radio, SRD, testing"揭示了文档涉及无线通信设备的测试和评估，确保它们符合EN 300220标准的要求。这包括但不限于发射功率、频率稳定度、调制特性、接收机灵敏度等关键性能指标的测量。此标准的重要性在于它提供了制造商、监管机构和测试实验室一个共同遵循的框架，确保所有在欧洲经济区销售和使用的SRD都满足电磁兼容性(EMC)和无线电频率使用的规定。这有助于保护公共安全，维护无线电频谱的有效利用，并促进跨设备的互操作性。 ETSI位于法国索菲亚·安提波利斯的地址以及提供的下载链接和版权信息，强调了文档的官方性和权威性。使用者需要注意，只有ETSI秘书处网络驱动器上存储的PDF版本才是具有法律效力的官方版本，任何对电子或打印版本的修改都需要得到ETSI的书面授权。 CE无线标准EN_300220_01V3.1.1p是欧洲对于25 MHz到1000 MHz频段内短距离无线设备操作的核心规范，它定义了设备的技术要求和测试方法，确保设备在频谱资源有限的情况下安全、高效运行。

ETSI

ETSI EN 300 220

1 V3.1.1 (2017

02)

maintenance: process of external intervention intended to keep equipment operational

NOTE: Maintenance may be scheduled or in response to failure. Automatic processes by the equipment itself are

not considered maintenance.

manufacturer: As given in article 2 of Directive 2014/53/EU [i.2].

maximum transmission duration (T

On-Max

): longest permitted transmission T

Message Initiator (MI): device which generates a message to be transferred to another device, such as a Message

Responder

Message Responder (MR): device which receives a message from another device, such as a Message Initiator

minimum inter-transmission interval (T

Off-Min

): minimum interval in a channel between two transmissions by the

same device

model control: devices used to control models (e.g. miniature representations of vehicles) in the air, on land or over or

under the water surface

non-specific use: any type of application

observation bandwidth (F

obs

): bandwidth in which the energy of an equipment is considered for the purposes of

assessing transmission timings

observation period (T

obs

): reference interval of time

Occupied BandWidth (OBW): width of a frequency band such that, below the lower and above the upper frequency

limits, the mean powers emitted are each equal to 0,5 % of the total mean power of a given emission

NOTE: See Figure 3.

Figure 3: Signal occupied bandwidth

off time (T

off

): time duration between two successive transmissions in the same operating channel

NOTE: See Figure 4.

on time (T

): duration on a Transmission

NOTE: See Figure 4.

Operating Channel (OC): frequency range in which the transmission from the equipment occurs; defined by two

frequency edges values: F

low

and F

high

declared by the manufacturer

Operating Channel Width (OCW): bandwidth between the two frequencies F

low

and F

high

declared as operating

channel

operating frequency: nominal centre frequency of transmission

ETSI

ETSI EN 300 220

1 V3.1.1 (2017

02)

operational frequency band: entry in the frequency allocation table for short range devices within which the device is

intended to operate and to perform the intended function of the equipment; defined by two frequency edges values:

low_OFB

and F

high_OFB

Out Of Band domain: spectrum area immediately outside the operating channel and which results from the modulation

process, but excluding spurious emissions

Out Of Band emissions: emissions in the Out Of Band domain

polite spectrum access: techniques to access spectrum and mitigate interference that employ CCA

radiated measurements: measurements which involve the absolute measurement of a radiated field

signal threshold (P

Threshold

): power level in a given receiver bandwidth that determines the start and the end of a

transmission.

Threshold

is set at -26 dBc

social alarm devices: devices that allow reliable communication including portable equipment which allows a person

in distress in a limited area to initiate a call for assistance by a simple manipulation

spurious emissions: emissions on a frequency or frequencies which are outside the Out Of Band domain and the level

of which may be reduced without affecting the corresponding transmission of information

NOTE: Spurious emissions include harmonic emissions, parasitic emissions, intermodulation products and

frequency conversion products, but exclude Out Of Band emissions.

transmission: continuous radio emission, or sequence of emissions each separated by an interval shorter than T

Dis

, with

a signal level greater than the signal threshold P

Threshold

in the operating channel

NOTE: See Figure 4.

Figure 4: Transmission definitions

3.2 Symbols

For the purposes of the present document, the following symbols apply:

dB decibel

E Electric field strength

NaCl sodium chloride

R distance

S Sensitivity of receiver

λ wavelength

3.3 Abbreviations

For the purposes of the present document, the following abbreviations apply:

AC Alternative Current

ACK Acknowledgment

ACP Adjacent Channel Power

ACS Adjacent Channel Selectivity

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