Meaning
Regulatory submission for radio certification that documents the use of hardware not integrated into the original module design. Every wireless device undergoes scrutiny to ensure radio frequency output stays within legal limits. An external antenna filing details the specific gain and radiation pattern of a new radiator when it differs from the parts listed on the initial modular grant.
Technical Documentation
Engineering reports must include peak gain measurements and polar plots for every new part. The submission of an external antenna filing requires a description of the connector type to confirm it meets non-standard interface requirements. Professional installers often manage these details to maintain system legality.
Certification Impact
Changes to the radiating element alter the effective isotropic radiated power of a system. An external antenna filing enables a manufacturer to add new components to a permissive change without repeating the entire testing cycle for the core radio module. This document links the specific hardware to the existing identifier.
Authorization Outcome
Compliance officers review the data to ensure that the combination of radio and antenna does not exceed the maximum allowed exposure levels. The approval of an external antenna filing results in an updated equipment list for the device. The updated list permits the legal sale of the modified assembly.