Meaning
A harmonized European standard specifies requirements for the radio spectrum access of wideband data transmission equipment operating in the 2.4 GHz industrial, scientific and medical band. Compliance with en 300 328 ensures that wireless devices such as bluetooth modules or wi-fi adapters coexist with other services by limiting output power and enforcing medium access protocols. Certification against these rules provides the presumption of conformity required to affix the ce mark before hardware enters the market.
Spectral Efficiency
Frequency hopping spread spectrum and other wideband modulation methods gain technical validation through power spectral density measurements defined here. This document dictates how a transmitter must adjust its behavior during periods of high traffic to prevent interference with neighboring links. Testing laboratories verify these conditions by monitoring the duty cycle and observing the channel occupancy limits during controlled laboratory assessments.
Operational Boundaries
Radio parameters defined in this specification cover equipment that utilizes digital modulation techniques rather than analog signal processing. The regulation applies exclusively to systems using the 2.4 GHz band and excludes cellular infrastructure or dedicated short range devices designed for other frequency allocations. Integration teams confirm that their board designs fall within the permitted bandwidth and gain constraints to maintain product legality.
Technical Compliance
Mandatory emission masks provide a barrier against out-of-band radiation that would otherwise disrupt primary licensed services. Design engineers calculate the maximum equivalent isotropically radiated power to ensure that a finished assembly stays below the regulatory threshold when the antenna gain is factored into the total budget. Verification of these signal characteristics during the final validation phase confirms that the hardware meets the legal requirements for continuous operation in the European economic area.
