Radio Frequency Exposure Evaluation SAR/EMF
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In order to avoid the impact of electromagnetic radiation generated by wireless communication equipment on human health, most countries or regions have issued corresponding regulations to restrict the radiation to the human body, which needs to be kept within a safe range, and the evaluation parameters are SAR and PD.
SAR (Specific Absorption Rate), SAR is defined as the electromagnetic power absorbed or consumed by human tissues per unit mass.
PD (Power Density), PD is defined as the power per unit area in the direction of electromagnetic wave propagation.
HAC (Hearing Aid Compatibility) certification is a kind of certification that digital mobile phones will not interfere with nearby hearing aids when communicating. Consumers can judge the compatibility of a certain model of hearing aid with mobile phones by the anti-interference level of hearing aids and the corresponding mobile phone signal emission level. There are two main parts of the test items: E-field emissions and F-T-coil.
