AttenuatorPadTools is a handy RF calculator that keeps tough math simple. Convert between dB and power or voltage (with real-world source/load impedance). Stack stages and see total gain, loss, and noise with the Friis method. Build a fast link budget from Tx to Rx to estimate received level and margin. Swap noise figure and noise temperature for easy front-end comparisons. Toggle SNR between linear and dB to match specs and meters. Get EIRP/ERP to understand antenna effect and check rules. Move between return loss, VSWR, and reflection, plus estimate splitter/combiner loss and design π/Τ pads for fixed attenuation.
