the basic of radio system designTHE BASICS OF RADIO SYSTEM DESIGN Mark Hunter* Abstract This paper is intended to give an overview of the design of radio transceivers to the engineer new to the field. It is shown how the requirements of a radio are derived from link budget calcul ations and then the modulation scheme, transmitter and receiver cascades are designed to fulfil them. Introduction In its basic form, RF system design is about connecting modules such as amplifiers, oscillators and mixers together in order to form a functional receiver or transmitter chain. However, to design a radio from scratch, the designer must have knowledge about the components that work with the radio such as the user interface, baseband functionality, power supply and antenna. Even before this, it important to analyse the customer requ……