RF Path Loss API
RF path-loss and link-budget maths as an API, computed locally and deterministically. The fspl endpoint computes the free-space path loss, FSPL(dB) = 20·log₁₀(d_km) + 20·log₁₀(f_MHz) + 32.44, the ideal line-of-sight attenuation between two antennas, and the wavelength. The linkbudget endpoint computes the received power, Prx = Ptx + Gtx + Grx − path loss − cable losses, the EIRP, and — given a receiver sensitivity — the link margin and whether the link closes. The dbm endpoint converts RF power between dBm, watts and dBW (0 dBm = 1 mW, 30 dBm = 1 W). Everything is computed locally and deterministically, so it is instant and private. Ideal for wireless, IoT, LoRa, Wi-Fi and radio app developers, link-planning and coverage tools, and RF engineering education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is RF link budget; for VSWR and impedance match use a VSWR API and for antenna gain use an antenna API.
api.oanor.com/pathloss-api
