The 1940s were the “Golden Age of Radio”. In the 1940s, Television did not exist in it’s widespread form, and the internet did not exist – morse code was still a big thing. Wirelesses, or radio receivers, were usually vary basic wooden boxes, with a loud speaker, a tuning knob and a volume knob. The radio industry and appliances were majorly influenced by the government, who utilized them for emergency broadcasts and transmissions aimed at boosting morale. At the end of the war, radio set producers were given more freedom in the production of the sets. This allowed for major new sets to be produced, with major new features, that were prohibited before the war.
Radio shows were broadcast, just as they are today. With the technology they had, they used a method called Amplitude Modulation which, from today’s standards, is an old method of technology. Radio stations were broadcast on kHz, as opposed to Mhz, and the airwaves weren’t as busy as they are today – but they were the first digital type of communication.