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.

Best Buy Security Cameras

Thing you should know when buying CCTV camera

1. Warranty
When you buy CCTV camera asking about warranty is amust , Branded CCTV components are highly reliable and are expected to deliver on their promises. However, even if there are any faulty products, these are most likely to fail within the first 90 days of use which is within the manufacturer’s warranty period. Therefore, purchasing extended warranty coverage may not be required.

2. Type and Quality chip in camera
There are two type imaging Chip in Camera : CCTV security cameras produce images using CMOS or CCD (Charge Couple Device) chips. Tiny and/or very low price CCTV cameras usually use CMOS technology, produce poor quality video and have very poor light sensitivity. Decent quality and better CCTV cameras use CCD technology. The size of the CCD chip is normally 1/4", 1/3" or 1/2". As a rule of thumb, the larger the size, the higher the quality of the image produced and the higher the price. However, higher density 1/4" and 1/3" CCD chips can now produce as good an image as many older 1/3" or 1/2" chips.
3. Focus Camera
Auto Focus is ideal when a person needs to keep it as simple as possible. Manual focus override on an auto focus system allows for maximum versatility and allows complete control over unique viewing situations.