04
Oct
Security DVR's come in many shapes and sizes. It is sometimes difficult to weed through all the different product specifications to find the unit that will meet your needs. The bottom line is, why...
25
Sep
So an event occurred and now you need to download the recorded video from your security DVR to give to the authorities. What are your options for how to download the video? Depending on...
20
Sep
So, you have decided that you are going to install your own security camera system. Among the many choices you will have to make is the type of cable you will use to connect...
19
Sep
Selecting the right DVR can be quite complex. Even many in the security industry really don't understand the technology involved. There are many factors to consider. Often, two DVRs seem to be similar, when...
15
Sep
Some of the newer DVRs on the market offer a feature called either a substream or a dual stream. A sub stream is used for viewing your DVR over the LAN or WAN when...
03
Sep
A PTZ (Pan-Tilt-Zoom) camera refers to the ability of a camera to move up and down (tilt), left and right (pan), and to magnify (zoom). Typically, the pan-tilt function is accomplished with a built...
26
Aug
Recording audio in conjunction with video can make a huge difference in the value of the video. Audio recording could be used as evidence in employee misconduct investigations, insurance liability claims or even criminal...
19
Aug
It may seem challenging to attempt to properly cover your parking lot with security cameras. Just using overview cameras to monitor an entire parking lot will usually not be enough. Though the overview cameras...
14
Aug
Anyone who has been researching video surveillance has definitely heard of H.264. H.264 is a video compression standard that provides the most efficient video compression techniques available today without compromising image quality. An H.264...
13
Aug
When configuring your DVR for optimal recording, there are many options you will be considering. Among them is the resolution you want to record in. While most DVR's can record in CIF resolution (360x240)...
11
Aug
Many DVRs are compatible with both NTSC and PAL standards. NTSC standard is predominately in North America and PAL in Europe. The PAL and NTSC standard actually refer to the method used to transmit...
11
Aug
At the heart of every digital camera in the world there is an image sensor. The image sensor converts light into a digital signal. There are two basic types of image sensors in use...
08
Aug
Here is a very common question. How many TVL should the camera have to best use the resolution of my DVR? This is one of the most misunderstood relationships in CCTV. The resolution that...
07
Aug
Almost every DVR has the ability to control a multitude of devices using the RS485 protocol. RS485 uses 2 wires to send and receive data to and from these devices. All the devices in...
07
Aug
One of the main considerations when installing a security surveillance system is the lens. Without lenses, the system would be useless. Most cameras come with a choice of lenses, while box type security cameras...