What Is BNC Video Out?

[monoxide77]

My Laserdisc player has a "BNC OUT" port for video. I know that a lot of computer networks use BNC cable as opposed to CAT5 cable. is this the same type of cable and if so, where does the BNC "in" go?

[Mavrick]

You can get a BNC to RCA adapter at Radio Shack, etc… This way you can use the BNC out port and hook it up to your TV, Capture Card, etc…

Some TV “Monitors” use BNC instead of RCA or Coax for the video. Typically they will use RCA for the audio and you will have multiple video sources on the Monitor. Video1, Video2, Video3, and Video4....

[MikeV]

The BNC cable for computers is RG-58 and has an impedance of 50 ohms.
The BNC cable for video equipment is RG-59 and has an impedance of 75 ohms and the output is composite or seperate (if there is more than one and labeled R,G,B,H,V). Do not use RG-58 for video or it will degrade the signal.

[monoxide77]

thanks for the great info! will the BNC signal be better than the composite signal?

[Mavrick]

It's "supposed" to be since it uses shielded coax vs. RCA cables... I can't tell the difference though... Maybe somebody with more AV knowledge will be able to tell u 4 sure...

[MikeV]

The RG-59 has better shielding than the $3.99 A/V cables you buy at Target or Wal-Mart. Better shielding=less noise. Also the RG-59 has higher frequency range than the Wal-Mart specials. Some of the best is made by Canaire. RG-6 has even higher frequency range, up to 1ghz,thats why U use it for your antenna lead-in.

[TheVore]

A single BNC connection is composite video. BNC/RCA both use coax wires. BNC is more rugged/better quality than RCA - more professional than home. My old VHS machine had N connectors - made BNC look like toy connectors - but they were still just for composite video.

Don't forget to connect up audio on a separate lead.

Good Luck
TheVore