termination resistances are used and an attenuation value is selected that is lower
than what is physically possible (a negative resistor value is displayed), then
a message will appear in the box over the schematics. "k" is the linear ratio equivalent
to the decibel value of the attenuator.
Equations used in this calculator can be found on the
Pi and Tee Attenuators Equations
Calculated values do not change until the "Calculate" button is clicked.