0

Is coaxial cable an option for distances of around 150 m to transfer SDI digital signals?

If coaxial cable can be considered an option for a distance of 150 m, is the cost of deploying coaxial cable, including any special connectors and amplifiers, larger than the cost of deploying fiber optic cables for the same distance of 150 m?

I know, this might be a very broad/generic question, but we are in the process of decision-making about our tech stack.

Improve this question

1 Answer 1

Reset to default
2

300 Feet is about as far as you can take SDI or HD-SDI; before it needs to be reclocked. So no, 150 M is too far. Also the quality of cable; and if it's being run in parallel with other cables that cause interference can affect how long you can go.

You can reclock at the half way point using a distribution amplifier, and you'll lose 1 frame of sync for each time you reclock.

Your next best option is to run Fiber Optic; which you can run for 25 miles without having to deal with any signal loss issues.

Improve this answer
1
  • Importantly to the cost question, you need to have power at the point where you reclock. The cost of installing a circuit in a typical major US city commercial building will be more than the cost of the equipment to run fiber for a small number of video signals. See this answer for links on maximum cable lengths.
    – Michael Liebman
    Commented Jun 13, 2017 at 22:28

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.