Picked up Atari 2600 Junior today need help with audio video cord

[Atari the Jedi]

So I picked up a 2600 Junior while at my local game shop somebody was trading it in with a bunch of Nintendo items. The clerk at the counter did not take the Atari because it did not have the power chord nor did it have the video cord to be tested. So when their transaction was done I asked the guy if you would sell it to me and he did for a couple of dollars. Turns out it works okay. I used my and television audiovideo cord which seems to work fine. I went to RadioShack today and bought a brand-new RCA to RCA a cord and it seems to have issues. Looks a little bit pixelated but the sound seems to work fine. The cord I bought is for RCA to RCA a audio and I was hoping that it would work the same. Any questions or thoughts

[xucaen]

I think you need an RF coax cable, not an audio cable.

[Gribble101]

You can use any composite cable (yellow, white, or red), hooked up to a female RCA to male coax adapter. You can buy the adapters at RadioShack for a couple bucks. The part number is #2780475.

Edited March 4, 2015 by Gribble101

[yllawwally]

Are you using a switchbox, with a slide switch for tv and game?