- Posts: 11
- Joined: Sat Nov 04, 2017 2:22 pm
Have a look at Belden's cable chart - available in PDF here from some googling:
(https://info.belden.com/hubfs/resources ... lletin.pdf)
... or by registering here http://info.belden.com/ecos/video-distance-chart.
1694a is the standard for broadcast in most projects I've seen. Be aware that many vendors now officially say that they can receive HD-SDI data over far more than Beldens official specs for 1694a. For example, TI's newest chip (LMH1219) says it has a reach of 280 meters for standard HD-SDI, and over 200 meters for 3G-SDI for the same cable.
In general, 90/100m over 1694a is not a problem with ATEMs, at least for 1080i / 720p (which is all I've tried).