RF modulator
From Free net encyclopedia
An RF modulator (for radio frequency modulator) is a device that takes a baseband input signal and outputs a radio frequency-modulated signal.
TV Modulators
TV Modulators take the audio and video signal from a composite video, RGB, YUV or internal source, and generates a PAL or NTSC broadcast signal that can be fed into a television's aerial/coaxial socket.
TV Modulators are commonly found in video game consoles, DVD Players and VCRs.
These give a relatively poor picture, as image quality is lost during both the Modulation from the source device, and Demodulation in the television.
For this reason, many newer televisions provide RGB, composite video or S-Video inputs, which offer superior image quality and bypass RF modulation altogether. However, the aerial connector is standard on all TV sets, even very old ones. For this reason, stand-alone TV Modulators are available, for connecting video devices using newer inputs to any TV set using an aerial connector.nl:HF-modulator