View Full Version : Reason for cores on Monoprice cables?


VizioFreak
04-08-08, 01:54 PM
http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10243&cs_id=1024008&p_id=3992&seq=1&format=2

Why do they have the big cores on each side? I thought HDMI was just one solid wire?:confused:

tlniec
04-08-08, 02:16 PM
I think there are ~19 conductors in an HDMI cable. I don't remember the exact composition of twisted differential pairs, versus discrete wires.

Regardless, the ferrites on each end are there to make their big, thick HDMI cables even harder to pull through a conduit. (I kid, I kid!) :D

jll544
04-08-08, 02:17 PM
I thought HDMI was just one solid wire?:confused:

Some reading for you:
http://en.wikipedia.org/wiki/Hdmi
http://en.wikipedia.org/wiki/Ferrite_bead

VizioFreak
04-08-08, 02:20 PM
So a plus on the cable for performance, but can be bulky in installs. Right? I ordered two of those cables, and just wanna make sure. I have only seen those on AC cords, and I know they are like surge protectors.

tlniec
04-08-08, 05:33 PM
Yep - they really shouldn't even make installation harder. In my limited experience, the connector is really the showstopper. If you can get the connector through, the ferrites should be no problem.

VizioFreak
04-08-08, 08:05 PM
Yep - they really shouldn't even make installation harder. In my limited experience, the connector is really the showstopper. If you can get the connector through, the ferrites should be no problem.

So is there a reason they use these? I mean I haven't seen anyone else do this. Does it benefit anything?

davehancock
04-08-08, 09:20 PM
So is there a reason they use these? I mean I haven't seen anyone else do this. Does it benefit anything?
http://en.wikipedia.org/wiki/Ferrite_bead

nonsequitur
04-08-08, 11:24 PM
So is there a reason they use these? I mean I haven't seen anyone else do this. Does it benefit anything?

The ferrites are placed onto cables for basically two reasons; either to reduce electromagnetic noise emanating from the cables, or to reduce the electromagnetic noise from other equipment from interfering with the device the cable is attached to.

You'll see them frequently on monitor's video cables - for the 1st reason.

Most likely, it's on these cables for the 1st reason as well.

But they effectively do both regardless of why they're there.