# FR3 Channel Sounding

Canonical URL: https://fr3channelsounding.com/

FR3 channel sounding measures propagation behavior across candidate upper-mid-band frequencies so engineers can characterize delay, angle, Doppler, blockage, and spatial structure.

Evidence class C. The cited authority supports component concepts or architectural context. It does not define this exact compound identity; LJP uses the phrase descriptively.

This staged identity is not a service, implementation, standards authority, ontology, API, or agent.