What kind of flat cable do you have? I use this kind http://www.amazon.com/Cable-JUMPER-...eywords=flat+coaxial+cable&tag=donations09-20 & haven't had any problems losing signal to my DVR or receiver. if you have this kind http://www.amazon.com/Flat-Coaxial-...eywords=flat+coaxial+cable&tag=donations09-20 ,they're not very good & definitely not worth the trouble.