Radio frequency regulatory compliance requires calculating Equivalent Isotropically Radiated Power (EIRP) and Effective Radiated Power (ERP) by accounting for transmitter power output, transmission line waveguide losses, and directional antenna gain. This RF calculation workspace accepts three inputs: an active transmitter RF wattage level ($V_1$), an antenna directive gain coefficient ($V_2$), and a coaxial cable feedline loss divisor ($V_3$).

The algorithm calculates the primary radiated emission index ($[V_1 imes V_2] / max(0.01, V_3)$), the root RF magnitude coefficient ($sqrt{max(0, V_1 imes V_2)}$), and the relative transmission efficiency share ($[V_1 / (V_1 + V_2)] imes 100$).

### Distinct Worked Calculation Evaluating a commercial UHF broadcast repeater link: - Transmitter Power Level ($V_1$): 135 - Antenna Gain Coefficient ($V_2$): 45 - Feedline Attenuation Divisor ($V_3$): 9

Step-by-step results: - Primary Radiated Metric: $(135 imes 45) / 9 = 6075 / 9 = 675.00$ - Intermediate RF Magnitude: $sqrt{135 imes 45} = sqrt{6075} approx 77.94$ - Radiated Efficiency Share: $[135 / (135 + 45)] imes 100 = (135 / 180) imes 100 = 75.00%$

### Secure Client-Side Execution RF parameters and transmitter station data are processed exclusively inside your web browser. No frequency allocations, callsign records, or power levels are uploaded to external services.