GPS mapping usually refers to GPS navigation devices used in cars, not GPS tracking units. The geographic landscape is constantly being updated, new roads built and so on… Therefore you cannot use the same old navigation system in your vehicle or handheld GPS device as it becomes outdated. You need to update your GPS mapping … Read more
Data logger is any electronic device that stores data or information over a period of time. They use portable and usually battery powered. Why is this important? Because that’s what GPS data logger is. GPS loggers are essentially different from real time GPS trackers, because of their technological design features. GPS Data Logger vs. GPS … Read more
GPRS or General Packet Radio Service is a network that extends GSM with new capabilities. GPRS allows mobile devices to send/receive IP data such as accessing email, browsing web, instant messaging. GPRS is available with every GSM cellular network. So where one works, the other is pretty sure to work too. Vehicle tracking systems mostly use … Read more
The term geofence or geofencing essentially means monitoring someone within the preset perimeter using GPS technology. Companies widely adopt this model to keep track of their employees and make sure they aren’t breaching the geofence. As soon as they do, you get an alert via SMS or email. An example would be logistics companies or movers. A boss sets … Read more
DVR stands for digital video recorder. It’s more advanced technology than VCR. For home use, DVR’s can record TV shows while turning on at set dates/times and turning off. You can collect a whole season of your favorite TV show, while being away on vacation for a year. You couldn’t do that with VCR’s for sure. … Read more
A system used in touch-tone telephones. DTMF assigns a frequency to each key for easier identification. In spy world for example, DTMF technology is used in tone decoders. It lets you recognize the numbers dialed from a phone. You can find out what number was dialed. All you need to do is play the pre-recorded … Read more
CMOS stands for complementary metal oxide semiconductor. It is an image sensor technology that competes with CCD sensors. CMOS were better in the early days as they consumed less power than CCD image sensors, although image quality wasn’t the most satisfying. Later both technologies have advanced and now it’s harder to choose one instead of the … Read more
CCTV is called a technology enabling the transmission of video from security cameras directly to monitors. Closed means that only a limited number of viewers can access the data, unlike TV. Security cameras in banks, hospitals, malls, parking lots all use CCTV for surveillance. CCTV system video quality is much better than regular spy cameras … Read more
Besides the popular PAL, NTSC and SECAM, there are other video formats. CCIR and EIA. These two are pretty much the alternatives to NTSC and PAL, but for black and white TV. CCIR (Comittee Consultatif International Radiotelecommunique) is the black and white (B/W) TV standrard used in Europe and Australia. It is the predecessor of PAL (color video format) developed … Read more
You must have stumbled upon a term CCD when looking for digital cameras or spy cameras on our website. CCD stands for charge-coupled device. CCD is an image sensor that converts light into electric charge. It basically captures an image. It collects light from the source and converts that light into electrons, which ultimately send … Read more
