The EU released important news: there is a new regulation for the product certification of the 5725MHz~5875MHz frequency range.

The product which working frequency range within 5 725MHz to 5 875MHz can only be limited by the EN 300 440 standard before. At that time, the power is too low (just has 25mW) and the transmission distance is too short. The emergence of the new standard is definitely an important thing for many short-range application manufacturers.

In order to meet different application demands, the market needs to figure out different network solutions for it. Recently, the European Union launched a new and specific certification standard for products of 5725MHz~5875MHz frequency range. The new standard is raft ETSI EN 303 258 V1.0.6 (2018-01)：Wireless Industrial Applications (WIA); Equipment operating in the 5 725 MHz to 5 875 MHz frequency range with power levels ranging up to 400 mW; Harmonized Standard for access to radio spectrum.

BACL will analyze the new requirements of ETSI EN 303 258 for you in detailed even the current version just is a draft version.

1. What type of equipment need apply to EN 303 258 standard?

1) WIA equipment (wireless industrial application equipment).

2) Working frequency within the range of 5 725 MHz to 5 875 MHz

3) RF power would not exceed 400mW (note: EIRP).

4) Some devices have APC supporting (adaptive power control) function.

In means, the products that meet above four conditions need to apply the new standard.

2. What guidance can we get from EN 303 258 standard?

This regulations regulate the technical characteristics and measurement methods for wireless industrial automation equipment that working frequency range within 5 725MHz to 5 875MHz. A spectrum sharing mechanism is also regulated for coexistence of other devices with working frequency range within 5 725MHz to 5 875MHz.

Note: the specification of spectrum sharing mechanism is an important change of the new standard relative to EN 300 440.

3. What is the WIA device means and what are the application areas for them?

WIA equipments are the wireless industrial automation equipments that working frequency range within 5 725MHz to 5 875MHz. Most of them are used in industrial automation applications, which cover different industrial applications.

4. What are APC functions and what are the specific requirements for them?

BALUN: adaptive power control (APC) is one kind of RF output power adjustment mechanism used by wireless devices in industrial applications. In other words, when the product does not need to maintain a high-power operation scenario at 400 mW, the mechanism can be used to reduce the RF output power to the minimum power (can be lower than 25 mW) for reliable links maintaining.

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