Most helpful positive review
5 of 6 people found the following review helpful
on March 1, 2014
One reviewer is slightly incorrect in his/her description, but not the 5 star review. I assumed all the wiring was solid copper.
The actual important center coax wire is indeed 100% copper.
The 95% shielding, which means the braiding surrounds 95% of the inner coax, is actually copper plated/clad aluminum.
The two power lines (Black and Red) are copper plated strands (7 strands in each).
I gave this five stars, because I feel this manufacturer took the best of both worlds. As current generally flows on the outside of whatever it is traveling on, having braided and/or stranded wiring, which means multiple contact points, is an economical way to have your cake and eat it too, as you won't have significant, if any loss of the integrity of a signal/shielding or power line. On the other hand, like Romex or RG59 coax, it is, IMO, far more important to have solid copper when using a single line (think of heat and resistance or as another example, dielectrics with copper and steel plumbing. I am not a total expert, but I hope this was understandable. I saved $100 buying this as opposed to another spool that had 100% copper on everything. Remember, although you need a ground to make the connection, the signal only travels down the solid copper middle. Think of an AC plug where one side gets hot when it is not plugged in properly; poor contact and too much current trying to go through too little surface causing oxidation and more heat, that is where the signal/current flows - the positive/signal side, even with a lighter switching power supply. Hope I didn't get too technical. Another example would be where they place a fuse in any equipment that has an external power source, it is always on the power side, not the grounded/shielded side. The grounded/shielded side is for stability and to protect from external influences; so to speak.
The exterior of this Siamese cabling is made of a decently thick PVC jacket. The insulation between the shielding and the coax is a nicely dense foamy, probably PVC, which makes the whole cable reasonably flexible.
This was a great purchase, though I bought it for someone else, that looks like it will be very durable. I am very happy I was talked out of buying premade cables by some experts, since a lot of this cabling will be run outdoors and having something robust will pay off in the end. This cabling will work for years and has proven ideal for less expensive installations. Even a mid range install, depending on environment will work fine with this cabling. Just remember, a DVR system is not real high speed and uses a small amount of data transfer compared to even HD cable or DSL. If you ultimately decide to replace to a higher end system, then do use solid copper throughout, instead of CCA shielding and power lines, but if you are going to go that route, consider an MVR and use IP cameras with quality Cat5 cabling.