Most helpful positive review
134 of 136 people found the following review helpful
A good solution for the price
on October 15, 2007
An RF modulator lets you connect various inputs to feed into the coaxial cable or antenna input on a television. It's the solution to the problem of having a TV that doesn't have inputs for what you want to connect, or doesn't have enough inputs. So, if you have a video input cable from a DVD or a camcorder, but only an antenna connection on the TV - an RF modulator lets you feed the video to the TV.
Feeding video over this kind of cable isn't going to give you the best video quality, but it should be acceptable. (To get the best quality, you need a better input - s-video, component or HDMI - and probably a newer TV!) I didn't notice any particular issues with the video quality, it seemed OK to me.
The back of the Belkin RF modulator has:
- a number of inputs: s-video; RCA jacks for video and audio (left and right); and a coaxial cable for a TV antenna or cable source
- a switch to set the output to channel 3 or channel 4
- a coaxial cable output to go to the TV
- an ohms switch for 75 or 1K
- a jack for 9V DC input, for the included AC/DC adapter
Not included is any cables at all, not even a short cable to run from the RF modulator to the TV. That can be inconvenient if you're setting this up, so plan ahead. monoprice.com and partsexpress.com are good cable sources.
The box is about 6" long by 3.5" deep (plus you'll need room at the back for the cables you're plugging in) by 1" wide (wider if you use the stand). So it's not tiny, but it's about as small as it can be and still offer all those input jacks.
Audio is output only in mono, even with a stereo source.
You can leave various inputs connected. But you'll probably have to or want to turn off the video feed when you're using the TV antenna, as it may lower the signal quality (or completely overpower it) coming from the antenna.
By the way, if you're wondering why a simpler adapter won't do the job ... the video input (from a DVD player, for example) isn't tuned to a TV channel. The RF modulator tunes it (to channel 3 or 4, in this case) so your TV can pick it up properly.