my fellow installers,

i'm using a ir. system with the equipment in the back of the room. some of the equip. is in cab. and some on top of the cab. the equip. on top sometimes receives a double code and won't do anything. i put something in front to block the equip. it works fine. for test purposes i layed the front of the equip. with black tape with the emit. under the tape but it doesn't solve it. i didn't cover the display so they could read it. so i'm thinking it's getting in that way. i tried running the equip. on top without the emit. but it doesn't work everytime. any ideas?

brandon