Here is part two to our Video Surveillance FAQ. Here are the most common questions asked and our response. If you have any questions please contact us directly:http://rkdefense.com/contact.php and we will be happy to answer them, of course you can always post a comment below.
Questions -
How do hidden cameras work? A small board camera is built into an everyday item. The camera can
be wired which means it is connected to the DVR or VCR using a cable. The camera can also be
wireless, in this case the camera transmits a signal to a receiver that is connected to the
DVR or VCR.
Can I get audio in my hidden camera? – No you cannot. According to United States federal laws,
audio should not be used in a surreptitious manner. One example of surreptitious interception is
audio in a hidden camera. This includes pinhole board cameras and all covert or hidden cameras;
i.e., a clock radio. Audio in a hidden camera or board camera is only available to law enforcement
agencies. Title 18, Section 2512.
What is the difference between a wired and a wireless camera? – Wired cameras have a video cable
that runs from the camera to your recording or viewing device such as a DVR, VCR or monitor.
Wireless cameras have a built-in transmitter that sends the video signal to a receiver. The
receiver connects to your recording or viewing device.
How far can a wireless hidden camera transmit? – Standard wireless hidden cameras can transmit up
to 1000 feet and high-powered wireless hidden cameras can transmit up to 2500 feet.
How many wireless cameras can you have in one location? - You can have up to four wireless
cameras in one location. You can view all cameras at once using four receivers or you can use one
receiver and switch to each camera. You will only be able to view one camera at a time if you only
use one receiver. If you want to install multiple wireless cameras in one location it’s best to
order them at the same time so that we can put them on different channels.
Will a cordless phone interfere with wireless cameras? – Cordless phones that operate on the 2.4
GHz frequency will cause interference with 2.4 GHz cameras. Interference should be minimal and
usually occurs if the phone is between the camera and receiver. Wireless Internet, networks and
Wifi can cause interference too.
What is a Quad? – A Quad is used with a VCR or other single channel recording device that splits
your monitor into 4 sections allowing you to view 4 cameras at once.
What is a 2.4 GHz wireless frequency? – A frequency is used to transmit a signal or data like
video. 2.4GHz is the specific wireless frequency that our tranmitters use to send video signal
to a receiver. All of our wireless cameras operate on the 2.4 GHz frequency. Range varies from
200′ to 700′ depending on environmental conditions. These units are FCC approved.
Are the transmitters FCC approved? – The transmitters used in all of our wireless systems are
FCC and Industry Canada Certified.
What is CCD? – CCD is used in professional cameras because of it’s high resolution quality and
it’s ability to record in low-light situations. CCD is basically a small silicon chip that
receives light and turns it into voltage variations which makes up an image. It’s usually
measured in inches with 1/3″ CCD being the standard. They are higher priced but are great for
cameras that may require vision in near darkness.
Will a Quad allow four cameras to record at the same time? – Yes you can record all four cameras
at the same time. You also can record using a switching monitor, which will record the camera
that is showing at that moment.
Do the receivers work through walls up to two feet thick? – Yes as long as there isn’t excessive
amount of metal in the wall.
Do the plug and play connections require extra wire to run the signal back to the VCR or TV? -
Yes, you need to buy the length of cable you need we offer the CA-25, CA-50, CA-100 and the CA-150.
What is the difference between a PC based DVR and a Embedded(stand alone) DVR? – A PC based DVR has
all the functions of a computer. An embedded DVR functions only as a DVR.
How many hours will a DVR record? – The amount of time a DVR will record for is based on the
size of the DVRs hard drive, the number of cameras recording and the number of frames per second
it is recording at. Our stand alone DVRs uses 3.4GB per camera per day. 4 camera stand alone on
250GB hard drive will record for 18 days. 8 camera stand alone on 250GB hard drive will record for
9 days. 16 camera stand alone on 500GB hard drive will record for 9 days.
What is a Plug and Play connection camera? – It is an RCA Video plug and a power plug on the
camera for easy connection to VCR or TV. This is done by running the RCA (Aux) line into the
VIDEO IN of the VCR or TV. The TV or VCR must be set on the correct channel to view the VIDEO
IN picture.
How many cameras can I hook up to one TV? – You can hook up as many cameras as your TV has
inputs. Most TVs have 2 inputs but when using a quad you can hook up four cameras.
How long will the camera last with a 9-volt battery? – The Cyber Eye and BD-127 will last 5 hours.
Between what temperatures is it safe for cameras to operate in?
It is safe for B/W cameras to operate between -23°C to + 50°C or -10ºF to +122ºF
It is safe for color cameras to oeperate between -23º C to +40ºC or -10ºF to +104ºF
It is safe to store cameras between -30ºC to +70ºC or -22ºF to +158ºF
What is the operating voltage of a camera? – Our cameras range from 9 volts (CMOS) to 12volts,
and also 24 volt professional models.
What is a varifocal lens? – A varifocal lens is one where the focal length of the lens can be
varied. This is a fancy way of saying it is a zoom lens. Most varifocal lenses have, and in almost
all circumstances should have, an auto iris feature.
What is a fixed lens? – A fixed focal length lens cannot zoom. The focus is fixed. A fixed focal
length lens usually allows more light to pass through the lens at a given focal length than a
varifocal, or zoom lens. This can be important in low light situations.
Thanks again to all our customers for the questions and we hope we answered them right! lol. If you have any questions at all please contact me directly at ryan at rkdefense dot com or go directly to our contact page: http://rkdefense.com/contact.php
Thanks,
Ryan Karpilo
Owner
RKDefense.com
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