Wireless Security Cameras Overview

What is a Wireless Security Camera? Most security cameras require two pairs of wires: one pair (positive and negative) for power, and one pair to transmit the captured video to a display or recording device (TV or DVR, for example). Wireless cameras only require one pair of wires – for power. The video is transmitted […]


Comparing Analog To HD-over-Coax

Click through the gallery below to compare analog video snapshots to 1080P HD-over-Coax video snapshots. Analog snapshots were taken using a DME700D while HD images were taken using a DLTAD-1080-36 HD-over-Coax camera. HD images have been scaled down from wide-screen format in order to line up to standard D1 Analog resolution. 1 2 3 4 […]


Comparing Analog vs. IP Technology

In the traditional analog CCTV application, security cameras capture an analog video signal and transfer that signal over coax cable to the Digital Video Recorder (DVR). Each camera may be powered by plugging in the power supply right at the camera or by using RG59 Siamese cable which bundles the video and the power cables. […]


Power Surge & Lightning Protection of Security Camera Equipment

If your security camera system takes a direct hit from lightning there is not much you can do to avoid damage to your equipment but there are easy and affordable steps you can take to protect against indirect lightning hits and minimize damage from other power inconsistencies and surges…

Picture of the Front of an Infrared Camera

How Does Infrared Work?

A few weeks ago I posted on the topic of infrared cameras behind glass. Since then I have received questions of what exactly infrared is and how it works on surveillance cameras. The simple answer is it is a high intensity light built into the camera that sends out light in a frequency the human […]


Introduction To Security Camera Systems

A security camera system basically consists of a number of security cameras, a digital video recorder to record the cameras, and the wiring and connectors to connect it all together. Security cameras come in a variety of styles: Bullet cameras, with a cylinder shape and a built-in lens, are weatherproof and are great for outdoor […]


Security Camera Cable & Wiring

Click on the title above to discuss our Security Camera Cable and Wiring FAQ. This FAQ provides details about cables and wiring for security cameras and DVR installations. You can comment here, or ask additional questions by simply commenting below.


CCTV Digital Video Recorder Overview

Click on the title above to discuss our CCTV Digital Video Recorder FAQ. The FAQ is all about digital video recorders (DVRs) and how they compare to analog recorders. You can comment here, or ask additional questions by simply commenting below.