| | Joined: Jan 2006 Posts: 2,266 Member | OP  Member Joined: Jan 2006 Posts: 2,266 | Can RG-59 be used for cable TV , or is it for camera's ?? | | | | | Joined: Dec 2002 Posts: 9,400 Likes: 1 Member |  Member Joined: Dec 2002 Posts: 9,400 Likes: 1 | A lot of older cable TV installs used RG-59, copper coated steel with an aluminum braid. It has a thinner center conductor. It is still in use in a lot of places but is not used for new installs of CATV. The RG-59 for CCTV is a copper conductor and 95 percent copper braid.
Jeff Moss
Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
| | | | | Joined: Feb 2005 Posts: 12,291 Likes: 2 Member | | Member Joined: Feb 2005 Posts: 12,291 Likes: 2 | RG-59 can be used- for short runs. It's loss at the high end of the CATV frequencies makes it unsuitable for new installs and anything over a few feet. Keep in mind also, and we have discussed this before, there are different types of RG-59. The old mil spec that has a copper braid over a solid polyethylene dielectric is common for video but has the highest loss but at video frequencies it's no problem.
The current RG-59 type cable has an aluminum braid over foil which is over a foam polyethylene dielectric. This will have a lower loss than the mil spec and is what was used for CATV until they added more channels to the top end making an RG-6 type cable necessary.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
| | | | | Joined: Jun 2005 Posts: 261 Member | | Member Joined: Jun 2005 Posts: 261 | The other problem with a lot of RG59 is the amount of shielding, some have only 50-60%, which is marginal for OTA, but unacceptable for CATV or SAT.
With CATV, the problem isn't as much noise leaking in, but signal leaking out causing interference to other services such as public safety. | | | | | Joined: Sep 2007 Posts: 1,173 Member | | Member Joined: Sep 2007 Posts: 1,173 | Get RG-6 whenever you can. | | | | | Joined: Aug 2007 Posts: 59 Member | | Member Joined: Aug 2007 Posts: 59 | I would also suggest RG-6, i would think the price would be worth using a lower grade cable.
Wagner Low Voltage
(901)870-6104
| | | | | Joined: Jan 2006 Posts: 2,266 Member | | OP Member Joined: Jan 2006 Posts: 2,266 | The problem is all I need is 3 runs , and will have to buy 1000 feet spool and it needs to be plenium, so I dont want to have to purchase 1000 feet for 3 runs. We will never probably use it again. I have a small spool of RG-59 plenium was hoping it would work.
thanks for the responces | | | | | Joined: Jan 2005 Posts: 15,287 Likes: 3 Moderator-Vertical, Vodavi, 1A2, Outside Wire | | Moderator-Vertical, Vodavi, 1A2, Outside Wire Joined: Jan 2005 Posts: 15,287 Likes: 3 | Steve: Perhaps this might help to soften the blow as opposed to buying a full reel: MCM Electronics ( www.mcminone.com or 800-543-4330) in Ohio sells plenum-rated RG6 in 500 foot spools. Their part number for it is 24-4955.
Ed Vaughn, MBSWWYPBX
| | | | | Joined: Jun 2007 Posts: 356 Member | | Member Joined: Jun 2007 Posts: 356 | we put baluns on twisted pair when we had to do runs in plenum space. plenum coax is rediculously priced, always has been.
security system suppliers stock the baluns.
it's all tip and ring
| | | | | Joined: Jan 2006 Posts: 2,266 Member | | OP Member Joined: Jan 2006 Posts: 2,266 | I like Franks idea, I'll check on the baluns | | | | Forums96 Topics94,281 Posts639,016 Members49,425 | | Most Online5,661
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