OT engineering question

[Steven Gonzales]

I believe there are amplifiers and repeaters available, so it probably depends on your budget. Also, the quality of the receiver chip will have an effect on marginal signals.

It may be hard to get a simple, definitive answer.

[Arnie Schlissel]

Your cable company can send a 1080p signal many miles. Your satellite company is sending it from the earth, to outer space, to your home. They both have specialized equipment & codecs to help them do this. Tell your client that if they have the will (and the cash) there’s no limit to how far they can send a signal.

Arnie
Now in post: Peristroika, a film by Slava Tsukerman
https://www.arniepix.com/blog

[Greg Ball]

Also, try the Broadcast Video Forum on the cow.

[Tom Matthies]

HD-SDI should be able to cover that distance without any issues using the proper co-ax cables and DA’s. I don’t believe that HDMI can cover the same distance without repeaters but I could be wrong. There are also fairly high-end fiber optic converters available if quality is a big issue. The networks also use a combined optical/electrical hybrid “tri-ax” cable when running long camera runs at sporting events. Expensive but possible.
If absolute quality isn’t the issue, you could install HD modulators/demodulators and run the signal thru an RF cable from a central location. For monitoring content, it should be fine.
Many ways to do it. Just depends on the necessary quality issues.
tom

[Walter Biscardi]

I would contact a local engineer or engineering / repair shop. We have a few here in Atlanta and they could certainly tell you what you need. Look up a Panasonic or Sony Broadcast Authorized repair center in your area and give them a call. They’ll usually chat on the phone with a question like this for free.

We have 75′ runs of HD-SDI in our shop with no signal degredation using those. 375′ might require some sort of amplification.

Walter Biscardi, Jr.
https://www.biscardicreative.com
HD Editorial & Animation for Food Network’s “Good Eats”
HD Editorial for “Assignment Earth”

“I reject your reality and substitute my own!” – Adam Savage, Mythbusters

[Gary Adcock]

[Mowbray] “how far of a cable run is possible if i have a 1080p video playing over it? i asked what kind of cable”

HD/SDI cables max at about 300ft without amplification – just like any BNC cable run that is properly shielded.

“1080p monitors here and there… he/we want to know what cable technology is best for a potential distance of about 375 feet…hdmi? hd/sdi? network cable(cat5 or 6)”

Fibre is 22 kilometers
HDSDI gives the longest “standard” cable runs, at about 300 ft.
HDMI cables max’s out at 3-5 meters
CAT 6 is not fast enough

FYI — Noone transmits a 1080PsF signal that I know of, just 1080 60i,
You only get that PsF signal from a tape deck or Bluray DVD

gary adcock
Studio37
HD & Film Consultation
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