These days, security cameras come in two basic varieties: wired and wireless. Wired cameras use coaxial cables to send footage directly back to your recording setup while wireless cameras use a Wi-Fi network to transmit recordings with no physical connection needed. Wired cameras came first and are still around for a reason, but wireless cameras are becoming increasingly popular every year. At this point, both types of camera could be good for your security setup depending on your needs.
Since wired cameras came first, a lot of older security systems still expect to use coaxial cable hookups. That means a modern coaxial camera will have no trouble slotting into an older system even if it uses advanced features like digital HD image capturing. This means you can upgrade your existing cameras one by one without having to disrupt the rest of your system. On the other hand, you can also get a hybrid DVR system that accepts both cable and wireless connections and upgrade your cameras by using that.
Old cameras needed two cables: one for the footage and one for power. A modern wireless camera can get away with zero cables since they transmit footage wirelessly and can operate on battery power. This means you can install wireless cameras with just a few screws in any corner of the room you want without having to worry about running long cables through the walls or over a drop ceiling. Even if you get cameras with a power cord, installing one cable is much easier and cheaper than installing two.
Modern cameras can now capture footage in 4k, a big step beyond the usual HD resolutions. Wireless signals have no trouble carrying all the information you need for a 4k resolution, but coaxial cables have a problem. The longer a signal has to travel along a coaxial cable, the weaker it gets, and so a 4k camera might not give you a 4k resolution if it uses a coaxial cable and it’s too far from your recording station. Electrical engineers are working on high-quality coaxial cables that can handle longer distances, but a wireless connection is still more reliable.
A coaxial camera may have trouble sending its full image quality over long distances, but aside from that it’s very hard to interfere with a solid, wired connection. On the other hand, wireless connections can sometimes fluctuate because of things like moved antennas, internet issues, router bugs and resets, and even solar radiation levels. Coaxial cables feature a copper sheath that protects the signal from outside interference, so it can be much more reliable.
Both wired and wireless cameras have their place in modern security systems, although most companies tend to choose one or the other if they aren’t in the middle of an upgrade. Which one is right for you depends on your company, your building, and what you need to monitor. Either way, you can rely on Supercircuits to find great wired and wireless camera options and a company that can help you install and maintain them.