Some Uses for RF Modulators
Some television users may want to install an RF modulator, depending upon a few situations involved. The modulator conditions a television set in order to receive a signal in a usable format.
Many of the older televisions still in use today will need some type of conditioner so they can see the picture that is being transmitted. Television modulators take video and audio signals that need to be changed and make a PAL or NTSC signal out of them, signals which can feed into the television’s aerial/coaxial connector.
These modulators (conditioners) are largely needed in old TV sets to enable them to run newer equipment such as DVD players on the old TVs. The modulators often do not produce good picture quality due to image quality being lost in the modulation process. The audio quality is also affected, especially if one is trying to run a stereo sound on a TV. Generally, it changes to a monaural quality of audio. Even if the TV has two speakers or audio inputs, the sound generally becomes monaural.
There are multi-channel RF modulators available. Those have multiple audio and video inputs and a single RF output. The outputs from DVD players, DSS receivers and a VCR can be connected to the video and audio inputs on the modulator. Then, the modulator can be programmed for reception by the TV to which it is attached. CATV systems can be problematic when trying to use RF modulation.
Conversion by a modulator into a 3/4 signal makes the signal compatible with the cable or antenna input of a TV. With the modulator correctly installed, even an old television set can be used for DVD input or for playing video games. Whenever you are not using an external input, the RF modulator will simply revert back to your normal TV viewing system.
