ETSI EN 300 328 Wideband Transmission Systems
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Significance of ETSI EN V.2.2.2 RF Radio Equipment Testing
ETSI 300 328 V2.2.2, will become a mandatory electromagnetic compatibility EMC test on August 6, 2021. ETSI EN V2.2.2 adjusts 2 critical sections within the previous version. Spurious emissions limits and receiver blocking are both updated in the newest document.
The spurious emissions limits have been modified from 470 MHz – 862 MHz and 862 MHz – 1 GHz to 470 MHz – 694 MHz and 694 MHz to 1 GHz. Though the changes look small on paper, these are considered major changes to the testing method.
Receiver blocking changes have been made to improve the testing procedure. This includes the changes such as differences in wanted signal mean power, blocking signal frequencies, and blocking signal power.
Summary of ETSI EN 300 328 Wireless Intentional Radiator Testing
This ETSI EN wireless regulatory document applies to Wide Band Data Transmission (WBDT) equipment and Data transmission equipment operating in the 2.4 GHz band. The RF compliance document also describes spectrum access requirements to facilitate spectrum sharing with other equipment.
It must be noted that equipment using Ultra Wide Band (UWB) technology is not covered in this standard. However, this EMC regulatory compliance test contains requirements to demonstrate that radio equipment both effectively uses and supports the efficient use of radio spectrum. This is to avoid harmful interference.
Scope of RF Testing on Wireless Devices
Technical requirements of this EMC wireless device standard apply under the environmental profile for the operation of equipment. This environmental profile must be declared by the manufacturer
There are two categories of Wide Band Data Transmission equipment.
- Equipment using Frequency Hopping Spread Spectrum modulation
- Equipment using other types of wideband modulation
Both adaptive and non-adaptive equipment is covered in this document.
Adaptive equipment – This equipment can be defined as any equipment operating in adaptive mode. This is a mode in which equipment can adapt its medium access to its radio environment. Adaptive equipment uses an automatic mechanism that allows the equipment to adapt automatically. This equipment adapts to its radio environment by identifying frequencies that are being used by other equipment.
Adaptive equipment may have more than one adaptive mode implemented. It is also allowed to operate in a non-adaptive mode.
Non-adaptive equipment – does not use an automatic mechanism. This equipment is subjected to certain restrictions concerning the medium to ensure sharing with other equipment.
It is up to the manufacturer to say whether the equipment is adaptive or non-adaptive. In case of the equipment being adaptive, it is also the manufacturer’s responsibility to declare if there is more than one adaptive mode implemented. Manufacturers must also declare whether the equipment can operate in a non-adaptive mode.
Keystone Compliance Offers Expert EMC Compliance Services
In addition to ETSI EN 300 328, Keystone has a full scope of expertise including multiple transmitters, licensed exempt radios, and simultaneous transmitters. We can accommodate fixed, mobile and portable devices of all sizes. Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling.
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