A wireless security camera system is more than just “wireless.” There are different types of wireless and different types of transmissions, each with their own advantages and disadvantages. Wireless technology, with all of its advancements over the years, is still growing; thus, any wireless security camera you purchase today will have improvements available before long. Still, the distinct benefits of easy access, easy installation, and wireless connectivity that a wireless security camera system has over a wired system make it worth looking into. Below is a brief description of what it means to be a wireless camera system and how the wireless transmissions work.
What does “wireless” mean?
A wireless security camera system is “wireless” because it uses a transmitter to transmit information through the air instead of through an electrical wire. It does not necessarily mean that the device itself is completely wireless; many still run on electricity and therefore need to be plugged in to operate. Still, if you’re looking for a completely wireless security camera system, there are some available that run on batteries.
How does the transmission work?
Wireless security cameras have a wireless RF transmitter that sends the video and audio back to a receiver at the monitor. This receiver will have either DVR or an SD card or some other kind of recording capability to receive the information and store it.
What are the types of radiofrequency transmissions that a wireless security camera system uses?
There are two types of radiofrequencies used by wireless cameras: analog and digital. Analog wireless security cameras transmit data constantly, and the data is received by any nearby receiver tuned to the frequency range. This does mean that people can interfere with the system, if they also have receivers. Other devices such as routers and microwaves can also interfere with their connectivity if they are run on the same frequency (usually 2.4 GHz; an analog wireless security camera system can also be run on 5.8 GHz). When there is more than one transmitter, the stronger signal will dominate. An analog wireless security camera system has the range of about 300 feet of open space (less when obstructed by furniture or walls). They are not too expensive, and you can use several receivers to pick up the signals of various cameras in your wireless security system.
On the other hand, digital wireless security cameras alter their signal and cycle through frequencies, sending digital packets to the receiver. They must be connected to a specific receiver, which keeps the transmission a bit more secure. These have a wider transmitting range of about 450 feet of open space (again, less when obstructed by furniture or walls). Several receivers can be connected to one camera if necessary, and there is a two-way connection between them so that the receiver can instruct the camera when needed.
The wireless security camera system is much more affordable than the wired security camera system that you have to pay professionals to come in and install, and it offers a number of additional benefits. Because of these benefits, wireless is becoming more and more popular for home security systems all over the country.