RF modulator

An RF modulator (radio frequency modulator) is an electronic device used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver. Its input is a baseband signal, which is used to modulate a radio frequency source.

RF modulators operate on different channels depending on the region and are have been integrated into various home electronics. However, they tend to produce lower image quality than a baseband connection due to losses during the modulation and demodulation process. In professional broadcast settings, more sophisticated modulators are used.