(A Must Read) The Causes For Interference On Security Cameras

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You may come across various issues like The picture clarity of the camera is vague and not clear. The screen starts blinking. It has captured theft or crimes, but the faces of the people are not clear.

The picture shows double images or is fuzzy. The screen ends up showing rolling and broken lines. How can these issues be handled? Buying the best camera system for business solves most of the issues at hand.

In most cases, using different cables or checking the power supply solves the issue. Is it possible always? Well, at times you may have to dig in to find and rectify the issues raised. In this article, let’s check out the main interferences in security cameras and reasons why it occurs.

Security Camera or CCTV on roof

Main interferences in security cameras:

In general, you may find these two interferences in your security cameras. They are the following:

  1. Wireless interference.
  2. Ground loop interference.

  • Wireless Interference

Modern security cameras are mostly wireless cameras. They may require a power source or the electrical facility of your building to operate. The wireless cameras provide the video to your system in a similar way as your WiFi connection. At times, these signals may get disrupted. As they tune in to get signals, sometimes the video may get cut. This is known as wireless interference.

  • Ground Loop Interference.

In a traditional security system, you rarely face any interferences. However, you may encounter one issue that affects the picture. The flickering horizontal lines called ground loop interference. This is a major concern. Though the problem is complex, solving it is not that hard.


Various causes of interference:

You may think why is the battery powered camera recording flickering at night? Why is the image produced is of poor quality? The factors that result in these issues might differ. Here are a few reasons that result in interferences of the recordings.

  • Fixing cameras of poor quality.

If the camera is of poor and bad quality, it results in bad pictures. In such cases, trying to improve all the other factors would be useless. It’s essential to get cameras that are branded and meets your necessary requirements. The cameras that aren’t branded are normally cheaper. They do not offer clarity and good quality pictures. In poor lightings, the pictures will be a flurry.

When you purchase a security camera, check out for the following. These are the must-haves in the package.

  • Branded product.
  • Product manual.
  • Warranty card.
  • Contact details for tech support.

If any of these are lacking, chances are you may face issues in the future.

  • Faulty power supply.

To work properly, the camera requires a sufficient voltage supply as per the manual. Other than the required voltage, enough current is also needed for the camera to work well. If not, it may result in noise and disruptions of the video.

  • Proper voltage.

A security camera that covers small areas needs 12 VDC power source having 10% variation. Unbranded and cheap cameras won’t have this 10% tolerance. Check with your dealer. See that the camera has this tolerance level.

  • Sufficient power.

A minimum current of less than 1A is required for a traditional camera. Planning to use infrared rays to capture images in the dark? Well, the current consumption is much higher. All this will be mentioned in the product manual. Or contact your dealer to know the camera’s power consumption

  • Insufficient lighting.

Enough light is required to capture the video properly. This is applicable for all sorts of cameras. Be your smartphone cam, camcorder or CCTV, good lighting is a must.

Are you planning to take a video in the dark? You may find some sort of noises as you record. This is normal and happens to all cameras in poor lighting conditions. The problem becomes insignificant, in good quality lighting.

  • The camera gets heated up.

Have you ever wondered why your camera is getting heated up? It’s because of poor manufacturing quality. The heat is not properly dissipated in the camera. It can also happen when the ventilations are not sufficient. When placed in closed enclosures, direct sunlight or heated areas, this issue rises.

Surveillance camera Signal


Whatever be the issue you are facing, it can be solved. You just need to figure out the reason why the best wireless outdoor surveillance system is creating an interference. Never forget that certain issues are normal. For instance, poor lightings may cause slight noise disturbances. Even this can be resolved using infrared settings. Have you encountered any of these issues? Write to us about it.

Related Topic: What Is The Best Resolution For Security Camera

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