Security camera image flickering: causes and solutions

fuzzy cctv feed
Image Credits: Flickr

A security camera is one of the most useful devices these days as it helps to monitor activity around and inside houses and commercial spaces. These cameras help detect anything unauthorised and can also deter and prevent various types of criminal activities. Security cameras can directly provide live feed on television sets, computer and even mobile phones. However sometimes the live feed may flicker and this may prevent us from seeing the coverage properly. If you are experiencing something like this then it is important to know the reason and then solve the problem. The following are some of the causes and solutions for security camera image flickering:

1. Is the video input to the monitor a loop through?

CAUSE: The first thing that you will need to check is whether the video input to the monitor a loop through with a video output to drive for example video tape recorder.

SOLUTION: Assume that the video output is present, then check whether it is terminated with a 75 ohm load.  You might be overdriving that video circuits of the monitor with a lot of signal and the flickering may be caused due to the monitor’s AGC circuits.

security camera image flickering

Image Credits:

2. Disconnect the video input to the monitor

CAUSE: Another thing that you need to check is whether the image still flickers on disconnecting the video input to the monitor.  If the flickering is still observed then the problem may be because of the monitor.

SOLUTION: In this case, you can try changing the monitor and then checking the issue.

cctv camera

3. Try disconnecting the coax at the camera output

CAUSE: Another thing you can do to find out the cause of the security camera image flickering is to disconnect the coax at the camera output. Check if the flickering still continues.

SOLUTION: If yes, then check the electrical outlet of the monitor.  This is because of the fact that the outlet may have an ungrounded neutral and as a result, your cable and the monitor may not be grounded. This leads to compromising of the shield ground and you picking up stray radiation.

disconnect coax

Image Credits:

4. Check the weather

CAUSE: Another cause for security camera image flickering could be bad weather and hence bad reception. If the image on the monitor is flickering, then check whether the weather is clear or not. If not, then this could be a possible reason for the flickering.

READ ALSO:  Importance of CCTV cameras for businesses

SOLUTION: Wait for the weather to become normal again and then check the image again.

Try unplugging the camera

Now the next thing to do is to unplug the camera and see if the flickering goes. What happens is that an ungrounded neutral is an indication of the fact that the camera grounds are not shielding properly.

Now that you know the various reasons for security camera image flickering, you can either solve the problem on your own or contact a professional to help you. If you are facing troubles with your security camera or CCTV camera, then you can reach out to Mr Right services for all solutions. Contact them for CCTV camera repair and service.

You might also like


  1. 1

    To make us read a well curated article is written on the topic. It provides us true and insightful information regarding the topic.It plays a vital role in taking us through. It can be really great for people like me who are looking for grabbing more knowledge about. Check GPS Trackers Melbourne

  2. 2
  3. 3

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>