Limited Modular Approval Conditions That Bind the Host Design
Limited modular approvals legally bind host PCB layout, enclosure shielding, and power regulation to the exact conditions stated in the grantee's filing notes.
Compliance Boundary
Meaning
Safety dimensions establish the mandatory physical separation between a radio frequency radiator and any human presence. The compliance boundary marks the edge of a zone where electromagnetic field strength drops below the specific regulatory exposure limit. It determines where installers must place safety markers or physical guards to prevent accidental overexposure.
Distance Geometry
Spherical or directional calculations based on the peak antenna gain define the shape of the exclusion zone around a node. Within the compliance boundary, the power density exceeds the maximum permitted for the general public. These measurements vary depending on whether the transmitter operates at high frequency or high power.
Documentation Protocol
Certification filings require a precise map of this safety area to obtain approval for public installation. Establishing the compliance boundary involves using field probes at specific distances to verify mathematical models of radiation. Regulatory bodies examine these entries to ensure the device poses no thermal risk.
Labeling Requirement
Visual warnings on the enclosure or pole mount inform personnel about the necessary stand back distance. If the compliance boundary extends further than the device housing itself, clear signage must direct the viewer to stay clear during active broadcasting sessions. Failure to mark this line results in non compliant site audits.