Attenuation is a reduction in an electrical signal usually because of absorption, scattering or interference.

Get Free Video Surveillance Systems Quotes!

Special Report!

How to Choose the Right Security Camera 2nd Edition

The comprehensive guide has a strong focus on IP Technology.  Get your free download now!

Expanded with additional quick view charts, updated selection survey and mounting examples.

Enter your name and email below and we will send it right over!

Have a Question?

Please note that all fields followed by an asterisk must be filled in.

It is also a key specification for all coax cables. The function of the cable is to transfer radio frequency power from one point to another. In CCTV systems the power output of the analog signal at the camera will have to remain the same in order to have a usable image at the other end of the cable. It is often referred to as 1 volt peak to peak at 75 ohms. The typical distance for a good signal for an analog CCTV system from the camera to a DVR is about 800 feet for RG59/U cable.

Handling of the cable is very important. If the cable is bent too much it can be damaged and cause leakage of the signal. Coax cable is also sensitive to electromagnetic interference from machinery or power lines.

You can find more information about connecting a CCTV system on our CCTV Connectivity page.

New! Comments

Leave your comments in the box below.
Share this page:
Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.

Get FREE home security quotes now!

Just fill in the form below.