Measurement and tools

Accessories for the measurement path — an attenuator and a directional coupler — plus basic wavelength conversion.

Attenuator calculator

Resistor attenuator calculator for Pi, T, bridged-T and L-pad — exact values, nearest E24 resistors, power in each resistor and minimum attenuation.

Directional coupler and SWR meter calculator — insertion loss, SWR measurement error from finite directivity and a table of meter readings.

Frequency to wavelength calculator — convert MHz to metres and back with λ = c / f for any band, from HF to microwave.