How to make an RF demodulator

Updated April 17, 2017

Since RF modulators are used to convert a coaxial signal to an RCA signal, an RF demodulator works in reverse to convert an RCA signal to a coaxial signal. If you need to convert the RCA signal from your audio/visual device to a coaxial signal, you can do so by creating a makeshift RF demodulator with a VCR and ordinary audio/visual cables.

Connect one end of your RCA cables to your audio/visual device. Connect the other end of your RCA cables to the RCA input ports on your VCR.

Connect one end of your coaxial cable to the coaxial output port on your VCR. Connect the other end of your coaxial cable to the coaxial input port on the back of your television.

Turn your television, VCR and audio/visual device on. Press the "Input" button on your VCR to switch to your audio/visual device's signal. You will see the signal from the device on your television, sent through the RF demodulator.

Things You'll Need

  • VCR with RCA input ports
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About the Author

Bryan Roberts began his love affair with comedy in 2003 as a writer and performer for Austin's No Shame Theatre. Since then, he has appeared with several different sketch groups (Hoover's Blanket, Ghetto Sketch Warlock). His most recent achievements are the award-winning improv show Guilds Of Steel, which he created and co-directed, and his position of writer/actor in the Coldtowne Theater Mainstage Sketch Show.