A satellite digital video recorder, or DVR, captures a satellite TV signal for storage on the internal hard drive and playback to a connected television. The signal passes through a coaxial cable connection to the DVR. Hooking up a security camera enables you to record an area under surveillance to the DVR, or simply monitor an area on a TV connected to the DVR without recording. Use a pair of coaxial cables with threaded RF couplers on the ends. Writer Bio
