The Whole-House Audio/Video system
The concept of whole-house video is simple. Instead of using manual switches to select a video source, modulate video source onto unused TV channels. In our home, I placed the following source onto unused TV channels:
- The two VCRs in the main A/V area
- The DVD player in the main A/V area
- The screen of my home automation PC
- The CCTV camera in my baby's bedroom
- The CCTV camera in my toddler's bedroom
- The front door surveillance camera
This system was accomplished using several of Radio Shack's
system and a Channelplus
3025. The Radio Shack box has unfortunately been
equivalent boxes are
available from Channel Plus, Blonder-Tonque and others. The RS box
two inputs in addition to the cable/antenna feed. The channel of each
can be selected, and I cascaded several boxes to handle the multiple
inputs. The Channelplus box is digitally controlled, so no dials
to adjust on it.
In addition to the above, we have your commonly available Pro-Logic Home Theater system with a Sony 32" TV. In addition to the normal five channel setup, I also have a 16" subwoofer built into the house with a 200 Watt amplifier.
On a side-note, while testing the subwoofer during installation, I played a test CD with various test tones. The low frequency rumble that ensued caused the dishes in my kitchen to rattle. We enjoy our system so much that it is easy to see why this is a big fad in new homes.
Similar to whole-house video, the audio sources can also be distributed as FM radio station channels. However, there is no pressing need for that at the moment.