3g Sdi Maximum Cable Length

They only serve as a guide in selecting the appropriate cable type.
3g sdi maximum cable length. Belden s 4794r coax for 4k uhdtv 12g sdi offers superior performance easier installation and reduced weight and space compared to quad or dual link. Sdi serial digital interface widely used in sdi encoders sdi converters and other equipment which has been applied to radio and television fields security monitoring. This provides a method of defining the maximum calculated length of cable for satisfactory signal transmission 1. Sdi is the broadcast standard for video links within studios.
The above graphs do not represent the exact cable length possible. Maximum length 20 db loss at 1 2 the clock frequency. Because of this the exact maximum cable length possible will vary. It is a digital format that can be used for both sd and hd signals.
To demonstrate v73263 is a superior solution to rg179 in 3g sdi applications this article will directly compare the two cables against the four main factors commonly considered in cable choice decisions. Reference sdi maximum cable distance chart. The recommended length values shown are based on typical attenuation values for the cables listed and the following criteria. Smpte st 292.
This provides a. For example itu r bt 656 and smpte 259m define digital video interfaces used for broadcast grade video a related standard known as high definition serial digital interface hd sdi is standardized in smpte 292m. And we have witnessed the development of the video standard with the ultra high definition standard from sd sdi hd sdi to 3g sdi 6g sdi 12g sdi and 24g sdi. If you are not using double shielded cable rated at 75 ohms it s not going to work.
Serial digital interface sdi is a family of digital video interfaces first standardized by smpte the society of motion picture and television engineers in 1989. Maximum length 20db loss at half the clock frequency. Component sd sdi widescreen sd sdi hd 1 5g hd 3g sdi cable part number distance ft distance ft distance ft distance ft 819 1082949301 209 25819 1014847265 177 6350 13381179370 255. This coax cable is the first designed specifically for 4k single link uhd video cable in the broadcast market for 12g sdi signal transmission.
Per 3g sdi standards most receivers require 20 db of loss at 1 5. At the same time it has also promoted an era of a new digitized. Sdi maximum cable distance chart. In the us a roll of belden 1505a hd sdi cable is about 450 for a 1000 roll 384 meters.
Smpte st 292 st 424. All cable is not created equal. Maximum length 30db loss at half the clock frequency. Interfaces such as connectors and patching may alter the overall end to end parameters as the cable.
When installing a cable in a system and it is approaching. Loss shielding ease of termination and cable connector impedance. The maximum length of cable depends on a number of factors. Alternates to belden 1505a are products like gepco vpm2000 or canare l 4cfb.