Usually when business owners are setting up their new wireless surveillance camera system there are some simple questions that almost always are asked:
One frequent question is, Can I record sound with my security camera system?
Its complicated, audio recording is not allowed as evidence in judicial or legal cases therefore it has no purpose. According to the United States legal code audio recording should not be As an example, surreptitious orsecret use is sound that is recorded from a hidden device. So, if the CCTV system is in open or the subjects sight then audio recordings may be ok. But, if any of your surveillance devices are hidden or to small to be noticed, such as a hidden camera, then sound cannot be used.
Hidden cameras would consist of pin hole and tiny cameras and virtually all spy cameras, such as, a radio containing a hidden camera inside. Sound recording in a hidden camera or micro camera is restricted to law officers and law enforcement agencies. An exception is the use of body worn cameras, like, a spy camera in your hat or a hidden camera in a tie clip and so forth. Refer to Title 18, Section 2512.
Often new users also want to find out the distinction is between a wired and a wireless camera system?
A wired security camera system includes a coaxial cable that runs from the actual cameras to the recording unit like a DVR/ VCR unit, or live monitor like a TV monitor. The wireless security camera has a built-in or attached signal transmitter which sends a video signal from the camera to the receiver unit. The wireless receiver device is then connected to the recording device or the viewing monitor.
If you are utilizing a wireless security camera system it is important to consider how far your wireless cameras are placed from the wireless receiver unit. Most wireless surveillance cameras can transmit signals up to 1000ft. while high power wireless security cameras can send up to 2500ft.. Such high ranges are based on unobstructed line of sight transmission. Transmissions go much shorter lengths if there are multiple walls, barriers, or competing wifi tranmissions standing between the wireless cameras and the wireless receiver device.
The most frequent cause of wireless transmission interference is from cordless and cell phones. Cell and handset phones operate on the 2.4 GHz frequency which will create interference with 2.4 GHz wireless security camera systems. Fortunately interference should be minor and typically only if your phone is directly between your transmitting camera and your receiver device. Other causes of interference include wireless Internet, networks and WiFi.
The interference you get from walls and other barriers is usually minimal. Generally 2.4 GHz wireless security systems will send and receive through walls as much as 2feet in thickness, as long as the wall does not contain an excessive amount of metal.
What about having multiple wireless security cameras in a single location?
The average wireless surveillance camera setup has more than just one camera. You will find that retail systems provide a max of 4 wireless security cameras in one area. This is because each device is sending its signal using a minor modification of the 2.4 GHz transmitting frequency usually called the channel. If you have in excess of 4 then your wireless security cameras will start to interfere with one another.
If you want to view all four wireless feeds from the four security cameras simultaneously that will require four separate pairs of wireless transmitters and receivers. You wil be able to use one wireless receiver with four transmitters but then you will have to toggle back and forth to each camera. You will only be able to view a single camera at a time when you choose to utilize only one receiver. When using multiplenumerous wireless cameras in one area you will need to toggle the DIP switches for each transmitter to a different channel.
Author Resource:-
Barry Grimes - Home & Business Security Consultant: writes articles on related products and services such as... Cell phone voice changer
and Fake Security Cameras
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