For audio- and video-transmission we mostly use RCA, SCART or HDMI cables. What most people don’t know yet is that CAT5 cables are also very suitable for the transmission of broadband (HD) audio- and video signals and that this offers many advantages.
The limitations of RCA, SCART or HDMI cables:
· the picture quality decreases considerably with longer cables (see table below).
· it is, certainly with HDMI cables, impossible to place a connector on the cable yourself. Because of this you often need to drill large holes to lead the cable with connector through.
· longer cables are often very expensive.
· the correct length is not easy to purchase.
The use of so called CAT5 cables is a very interesting alternative, and that is why they are frequently used in larger professional A/V sets yet.
What is a CAT5 cable?
A CAT5 cable (also known as UTP or network cable) combined with the well-known RJ45 connector (picture) is often found as connection between PC and network (router), as data network and between data-equipment. You might even have a (small) data network at home where you use this kind of cable
Why use a CAT5 cable?
The use of this cable has a number of striking advantages:
· little or no loss of quality;
· can be used over long distances;
· usable for both SD and HD Audio/Video signals;
· relatively cheap and widely available;
· you can place the plugs yourself what makes that:
- every length can be realised
- the cable is easily guided through a PVC-pipe,
- the holes that need to be drilled can be small;
· the cable is relatively thin and flexible so it can easily be concealed.
However, the RJ45 connector cannot be plugged straight into your TV or A/V device. Marmitek, as specialist in the field of audio/video transmission, offers a number of products which can be used to transmit both the Standard Definition (composite) as well as the High Definition (HDMI) signal through CAT5 cable. Knowing;
· the MegaView 50, for watching Composite Video over a single CAT5 cable.
· the MegaView 51, for watching and operating Composite Video over a single CAT5 cable.
· the MegaView 60, for watching HDMI over two CAT5 cables.
· the MegaView 61, for watching and operating HDMI over two CAT5 cables
· the MegaView 80, for watching HDMI over a single CAT5 cable.
It has never been easier to watch your SD or HD video content, elsewhere on your TV.
|Cable type||Max. length without loss of quality||Max length (with some loss of quality)||Plugs at every length desired||HD signal possible|
|SCART cable||3 metres||5 metres*||No, complex||No|
|RCA cable||5 metres||10 metres*||Yes, solder joint||No|
|HDMI cable||3 metres||10 metres*||No. complex||Yes|
|CAT5 cable||35 metres||300 metres||Yes, shrink joint||Yes|
* depending on the quality of the cable