Non-linear active components in radio frequency receiver front-ends generate third-order intermodulation distortion (IMD3) products when two closely spaced signals mix, creating spurious signals that degrade dynamic range. In this RF linearity calculator, intermodulation metrics are evaluated using three parameters: a fundamental carrier signal power factor ($V_1$), an amplifier non-linearity multiplier ($V_2$), and a distortion attenuation divisor ($V_3$).

The utility resolves the primary intermodulation product index ($[V_1 imes V_2] / max(0.01, V_3)$), the intermediate linearity magnitude ($sqrt{max(0, V_1 imes V_2)}$), and the relative spurious-free dynamic range proportion ($[V_1 / (V_1 + V_2)] imes 100$).

### Distinct Worked Calculation Evaluating a low-noise preamplifier in a communications receiver: - Fundamental Carrier Factor ($V_1$): 65 - Non-Linearity Multiplier ($V_2$): 25 - Attenuation Loss Divisor ($V_3$): 5

Step-by-step results: - Primary Distortion Metric: $(65 imes 25) / 5 = 1625 / 5 = 325.00$ - Intermediate Linearity Root: $sqrt{65 imes 25} = sqrt{1625} approx 40.31$ - Dynamic Range Proportion: $[65 / (65 + 25)] imes 100 = (65 / 90) imes 100 approx 72.22%$

### Client-Side RF Analysis Guarantee All third-order distortion formulas compute locally in your browser. Power levels in dBm, intercept frequencies, and receiver gain figures are never submitted to any external web service.