Attenuation Calculator
Calculate total attenuation and remaining power over a medium.
How to Use This Calculator
1
Enter attenuation rate
Specify loss in dB per kilometer (or per your chosen distance unit).
2
Enter distance and input power
Distance along the lossy medium and the transmitted power.
Formula
A\u2093 = a · d, \u00A0 P_out = P_in · 10^(-A/10)
A is total attenuation in dB, a is attenuation rate (dB per unit distance), d is distance.
Frequently Asked Questions
Can I use linear attenuation?
Yes. For linear: P(x) = P0 e^(-\u03bc x). Convert to dB/length by a = 10 log10(e) · \u03bc ≈ 4.343 \u03bc.
Does frequency matter?
Attenuation often depends on frequency and medium. Use the rate appropriate for your system.