HD-SDI CCTV Video Surveillance


See Your World in HD

HD-SDI technology allows for higher resolution video and at a faster frame rate than an IP camera’s frame rate. With HD-CCTV, there is no need to extend a local LAN all the way to every camera on site in order to deliver the benefits of HD video; instead, it utilizes your existing infrastructure wiring, making this technology an optimal choice for upgrading old analog systems into a high definition system at significantly lower cost than IP security systems.

HD-SDI systems consist of HD-CCTV certified cameras, coax based wiring, and HD-CCTV certified digital video recorders. Until recently, the only option for HD resolution was to adopt mega-pixel IP cameras. Now, HD-CCTV cameras are an alternative. Today’s national television networks such as NBC and FOX use HD-SDI technology to broadcast high definition video to our TV’s.

How it works

HD-CCTV (High Definition Closed Circuit Television) is an open industrial standard for transmitting uncompressed high-definition digital video over point-to-point coaxial cable links for video surveillance applications. By sending the video signal with no compression and without delay, HD-CCTV cameras usually deliver better overall live views than the mega-pixel IP camera alternatives.


  • One of the main advantages of upgrading to HD-CCTV is that it does not require significant modification to an existing CCTV system designed for analog cameras, for which extensive cabling and labor was already invested in.
  • Since the coaxial cables originally used for the analog system have unused data spectrum capacity available, it is easy to replace the camera and the recorder to obtain nearly seven times higher image quality than the original analog camera system (1920×1080  vs 640×480 or 2.1 million pixels per image vs. 300 thousand pixels per image). 
  • HD-CCTV cameras deliver the highest overall quality HD live views.
  • HD-SDI is a digital interface that delivers HDTV signals without any compression artifacts or transmission-related delays
  • HD-CCTV unlocks HD quality
  • No wireless solution is yet available for HD-CCTV.
  • HD-CCTV cameras transmit only HDTV video: 720p25/30/50/60 and 1080p25/30. Customers who need higher frame rates or higher resolution must turn to Megapixels IP cameras

Skynet Security Systems

  • Office Locations

    322 S. Green St, Ste 202 Chicago, IL 60607 9745 Industrial Dr, Ste 3 Bridgeview, IL 60455
    200 S. Executive Dr, Ste 101 Brookfield, WI 53005
  • 2100 West Loop South, #800 Houston, TX 77027
  • Office Contact Information

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