If you’ve heard about NTSC, then you’ve probably heard about PAL too. It’s a similar system. NTSC (National Television System Committee) is a video format, a TV standard in the North and majority of South Americas. Europe and Asia use PAL, SECAM as alternative formats. What’s interesting is that these standards are incompatible with each other. Here’s a … Read more
Multiplexer or MUX in surveillance world is a device that essentially lets several signals to be transmitted into one channel, on one device. What we’re talking about here is CCTV cameras. If you have multiple surveillance cameras and you want to view them all on one monitor, you need a multiplexer to receive signals from … Read more
Hidden cameras with motion detection are very popular these days. They allow businesses to save money on surveillance by activating and recording only when there’s motion on camera. Instead of wasting SD card/HD space on empty recording, you get only what you want – action on camera. So how do these motion activated cameras work? … Read more
Lithium-ion (or Li-ion/LIB) batteries are the most common type of batteries used for wireless devices. Be it cell phones, notebooks, camcorders or spy camera DVR’s. You see this name very often, but how are these batteries better than any other ones? Let’s try to take a quick look shall we? First of all, they’re rechargeable – … Read more
A keystroke logger (or keylogger for short) is a term often used in computer world to describe software that records every single press of a keyboard or mouse. A key logging software is spy software that runs invisibly in the background on someone’s computer. Keystroke loggers can be hardware based or software based. Nowadays, it’s mostly … Read more
IP security cameras allow you to access a camera directly by using high-speed internet. TCP/IP network protocols are the reason for that. IP cameras are built in a web server and have their own IP addresses. Just like any hosting server or your computer. IP video cameras don’t limit your with resolutions or transfer speed like DVR … Read more
The term internet surveillance refers to someone spying, watching, monitoring via internet. Internet is wide open and definitely not the most secure place. If you didn’t think about it before, maybe it’s time to consider the dangers of internet and what privacy issues it may bring you. Spyware is the most basic form of online surveillance. … Read more
Infrared cameras can see what human eyes cannot. Such cams create an image based on infrared radiation versus light. Infrared technology spots radiation created by heat. And heat is created when atoms, molecules which are in motion. Everything around us is made of atoms. The more they move around, the more heat is created. That’s … Read more
Global System for Mobile Communications or GSM (Groupe Spécial Mobile originally) is a cellular network for mobile devices. It originated in Finland. This network is made of antennas placed in relatively close proximity that send signals. GSM system is global, which means you’ll find the same antennas working in Asia, Europe and USA. SIM is one … Read more
What is GPS and How it Works? GPS, similarly to internet, has left a huge impact in the history of mankind. Bold words, but it’s true. Now almost every new vehicle comes with GPS system installed. It’s really hard to imagine a world without GPS nowadays. GPS is a satellite based location tracking solution. GPS stand … Read more
