Can you imagine the world without Electronic devices? Today’s electronic gadgets, machines and appliances have become an integral part of day-to-day lives. This is most apparent with recent developments in technology like drones, Mobile internet, medical devices, Internet of Things (IoT) and autonomous vehicles. But the increased use across various sectors also increases the potential for harmful electromagnetic interference. This interference ranges from a small nuisance to complete product or system failures. Historically, amplifier selection for Electromagnetic Compatibility (EMC) testing was based mainly on tribal knowledge and information scattered across the EMC industry. However, proper EMC amplifier selection is an important step in achieving required RF levels. Considerations are numerous. This application note provides the EMC test engineer, or technician with the information necessary to make the proper decision.