Radio Equipment Directive Host Integration Testing Procedures and Technical File Assembly
CE module approvals do not cover host integration; host manufacturers must execute physical delta testing and compile a full RED Technical File.
Article 3.1b EMC
Meaning
Regulatory requirements for electromagnetic compatibility dictate that radio equipment must prevent excessive electromagnetic disturbance. Compliance with article 3.1b emc requires the smart device to resist external disturbances. Manufacturers verify this through standardized testing.
Compliance Boundary
Product certification hinges on passing the harmonized standards that apply to the integrated board and its enclosure. In particular, article 3.1b emc applies to the completed device rather than to individual, unshielded module subassemblies. Testing involves exposing the system to electrostatic discharges and electrical fast transients.
Engineers run these evaluations in a fully certified anechoic chamber.
Interference Suppression
Shielding effectiveness of the enclosure prevents unwanted emissions from affecting nearby sensitive electronics. Handover documents must detail the attenuation of the chassis under full operating loads. Grounding contacts between the printed circuit board and the metal shielding must remain continuous to prevent failure during compliance testing.
Failure here delays the release of the final product.
Integration Risk
Coexistence issues arise when high-speed digital lines are routed too close to the internal antenna structure. While an off-the-shelf module might be pre-tested, the integrated system must still undergo full evaluation. Noise generated by the switching regulator can couple into the RF front-end, which necessitates additional filtering.
This validation is documented in the technical construction file before the declaration of conformity is signed.