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Hidden cameras are often considered a surveillance tool. The term "hidden camera" is commonly used when subjects are unaware that they are being recorded, usually lacking their knowledge and consent; the term "spy camera" is generally used when the subject would object to being recorded if they were aware of the camera's presence.
Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera.
Active infrared night-vision combines infrared illumination of spectral range 700–1,000 nm (just over the visible spectrum of the human eye) with CCD cameras sensitive to this light. The resulting scene, which is apparently dark to a human observer, appears as a monochrome image on a normal display device. [ 15 ]
Hanwha Vision (Korean: 한화비전; RR: Hanhwa Bijeon), founded as Samsung Techwin, is a video surveillance company. [2] It is a subsidiary of Hanwha Group . The company employs 1,822 people and is headquartered in South Korea .
Spy video car created by Wild Planet. A spy video car is a hybrid product created by mixing a traditional RC car and a video baby monitor.The remote controller communicates digital command via the 49 MHz frequency to the car for control, and the camera on the car transmits video via the 2.4 GHz frequency to the remote controller for display.
California (/ ˌ k æ l ɪ ˈ f ɔːr n j ə /) is a state in the Western region of the United States that lies on the Pacific Coast.It borders Oregon to the north, Nevada and Arizona to the east, and shares an international border with the Mexican state of Baja California to the south.
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