• The right HDMI cable connections result in a clearer picture.remote 5 image by jimcox40 from Fotolia.com
  
  HDMI, or high definition multimedia interface, cable is commonly used for high-definition television. One reason HDMI connections were introduced was to make it more difficult to copy content illegally. This is why many say that HDMI benefits copyright owners more than consumers. As with any cable connection, occasionally problems can occur with this type of connection. These can cause anything from poor video quality to a complete lack of video.
  
  

Advantages of HDMI Connections

• The primary advantage of HDMI cables over other types of audio and video cables is the ease of connection. In the past, hooking up an audio/video system required a variety of cables. With HDMI, one cable handles all the audio and video connections. HDMI is also compatible with DVI, or digital video interface, cables. Finally, HDMI supports two-way communication between a television and video receiver. This allows the easy use of advanced features with only one cable.
  
  

Long Cable Runs

• HDMI is generally not a reliable cable connection over longer distances. Although this varies depending upon the cable type and grade, HDMI cables are most reliable at lengths of three to six feet. Some higher grade cables support longer lengths, but in no case should the cable be longer than 50 feet. Much of the length and quality relationship depends on the type of video signal, 720, 1080i or 1080p. With longer lengths of cable, signal quality falls as the depth of color or resolution increases. External amplifiers can make up for signal loss over longer cable runs, but can also introduce noise into the transmission.
  
  

Unnecessary Adapters

• HDMI cable requires extremely fast data transmission for a clear signal. It is sensitive to adapters and poor connections. Use a single cable to connect your TV to the video box for the best signal quality.
  
  

Poor Cable Quality

• With the high-speed requirements of HDMI transmissions, poor quality cable can cause problems. Many manufacturers make cables with an emphasis on low price, and not top quality. You paid good money for your TV, and you pay good money for cable or satellite service. Don't compromise on the connections: Buy top quality cables.
  
  

Configuration

• If you are not getting a video signal to your TV from your cable box, DVD or Blu-ray player, you may have a configuration problem. Many video devices have the HDMI connection turned off by default. In this case, you need to either turn the connection on, or run a configuration program that starts the signal transmission through the HDMI connector.