This paper describes a method to model the impedance of Haddad type resistor over frequency interval ranging from 10 200 MHz, hereafter defined as LF-RF range. To this end, novel standards, 1 kΩ and 100 Ω, have been designed manufactured with aim sharply identifying nodes that define impedance. Resistor modelling is divided into two main parts: first one, describing central coaxial core second ...