Thing You Should Know When Buying Wired or Wireless CCTV Camera

Thing You Should Know When Buying Wired or Wireless CCTV Camera

- Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency.

- Analog devices send out a constant string of data when they transmit. These can be picked up by any receiver that picks up signal in its frequency range.This means that anyone with a properly tuned receiver can pick up a transmitter. It also makes interference more likely. If there are multiple transmitters in the same area, the most powerful signal will knock out any others in range. They are easier to set up, though, since no pairing between camera and receiver is necessary.

- Wide transmission range—usually close to 450 feet (open space, clear line of sight between camera and receiver) - Digital wireless cameras work a little bit differently. They modulate their signal slightly, constantly cycling through frequencies in a order to avoid interference. This also makes transmissions more secure. In order to pick up this video feed, a receiver needs to be paired with the camera. This means they are being programmed to cycle through frequencies at the same rate.


- With clear line of sight, digital wireless cameras typically have a range between 250 to 450 feet. Indoors, the range can be limited to 100 to 150 feet. The signal range varies depending on the type of building materials and/or objects the wireless signal must pass through.

- There are devices called repeaters that can be used to increase wireless range. They work on a simple premise, receiving a camera’s signal and retransmitting it. - You do however tend to get a better quality Video from wired CCTV where as Wireless CCTV is initially easier & cheaper to install but if you required High Quality Video in a Secure Environment you have to use Wired Cameras.

- wireless installation is easier since you do not run wirers from the cameras to the recording device (DVR). But remember, you still have to run power to each camera. - Although today's wireless cameras are exceedingly better quality then in the past, we believe you can never achieve the same high picture quality as a wired system. Moreover, several items that we use daily can interfered wireless camera transmission. Some are; cell phones, microwave ovens, Bluetooth® devises, two-way radios and others.

- The bottom line is, unless you have no other alternative, use wired cameras at all times. Higher level of security, enhanced picture quality, superior reliability and less maintenance.