This review wireless intercom will help you make an intelligent choice when selecting a wireless intercom system. There are a limited number of wireless intercom on the market as a choice is not as difficult as choosing a different type of consumer goods. There are only three wireless intercom systems that are available.
Power Line Carrier intercom
A wireless intercom system is not truly wireless. It sends and receives data via the electrical wiring of your home. Westinghouseis one of them. Radio Shack is one too many, but to call it an FM (frequency modulation) Intercom (Westinghouse think trademarks of Radio Shack intercom so that the same product). It sends and receives on VHF frequencies, but is well above the power lines.
These power-line carrier communication systems can work well, but it frustrates more than half of people who use them. One of the problems with these systems, with the way it is connected to your home. There are 220 volts comingHis house, and 220 is divided into two phases 110 volts, half of your house on a half-step and the other wired. The problem is that the FM signal is usually not to jump on stage, or if they do not do it very well. Thus, intercom systems can work well in the middle of your home and not at all, or bad, the other half.
The other problem with this transport system power-line communication is that you can have the devices, which causes interference to FMSignal. Microwave can be one of the worst criminals. These devices, the telephone system may become unusable. Although these communication systems are cheap and you can try to see if they work in your home, are not recommended for commercial environments. There are only two of many devices in an office or industrial environment, making them unusable.
900 MHz wireless intercom
The other system on the market wirefree 900MHz Wireless Intercom System. As the name suggests, it transmitsaccess in the 900 MHz frequency range. This is the only true wireless system on the market. It is not the only one that wirelessly through the ether, but it is the only one that is battery powered. So not only do not stay at home or business wiring connection, it is not even connected to unless you choose to purchase the optional AC adapter.
Wirefree system is unique, as there are several low-cost components that do not have another wireless system intercom. Theis portable intercom units that sit on the surface of a desk or table work surface. There are two types of this unit with a creature called the system wirefree range extreme. It sends and receives the same distance as the unit of bandwidth is not extreme. Both have a maximum range of 1000 meters, but you are more likely to obtain in the range of 300 meters depending on the environment. Both devices have the same characteristics.
The system wirefree intercom doorbell has a waterproof outer that can be usedto your front door to talk to the locals. The beauty of this device is if the people at the door, press the button, you can talk hands free.
There is also a waterproof outer intercom, which can be used in any outdoor installation. This push of a button intercom required for each transmission. You can hang on your wall or put rubber feet on this device and use it if you want. The nice thing is that there is only one large button, it is easy to use.
Thewirefree system also has a built-in intercom, the installation of multiple user-defined search. Requires a hole in the wall, but it will be powered by a battery, so that no wiring is required. Battery life in all units wirefree 1-2 years, so do not require a lot of battery changes.
The system has a monitor and wirefree VOX operation that not all wireless intercoms. Monitor is like a baby-monitor mode. The difference is that they are monitored continuously. ItsMicrophone is turned on only when it detects the sound, strong enough to activate the microphone. There are three different levels of sensitivity to activate the microphone, but even in its most sensitive setting, it is not good for the quiet voice of more than a microphone a few feet. The disadvantage of using the monitor mode for some applications is that there is a tone on the receiving end every time you turn on the microphone sounds. If you were to monitor these children, this wouldirritating rather quickly.
If you set a unit wirefree VOX mode when someone calls from another unit, the unit in VOX mode, can free their hands to answer without pressing the PTT button. One problem that comes with two radios, VOX that have divided and that there is a slight delay in transmission, while the VOX circuit passes the microphone transmitter. Experienced operators know how this is through repetition of the first word or two to overcome, but for the average person, this delay maylittle 'frustrating.
A unique feature of the system wirefree is its ability to do private interviews. Units must be "taught" to talk to each other. Once this is done, even if the neighbors have the same device, can not hear or talk to you. Even if a page is transmitted to all units that responded to the system wirefree set up a private conversation between the sender and the person so that all the other units do not hear the conversation.
MURS wireless intercom
Moreother wireless intercom system is not much of a system from one manufacturer, because it is a collection of wireless telephones and radios. This "system" is set to compatible products in the MURS radio. MURS stands for Multi-Use Radio Service and is a two-way radio service consisting of five frequencies in the (Very High Frequency) VHF spectrum. Unlike most of the frequencies in the VHF range, MURS does not need the FCC license to operate.
Although only 5Channels, each channel from one of 38 "silent code" or sub-channels to choose to listen to the conversations of other people stay on this channel. You only hear calls from stations on the same channel and code as your radio silence. In most areas of the MURS frequencies used very lightly, so you will not find a lot of competition for the airwaves.
The biggest advantage of MURS is the area offers. Some manufacturers claim a range of four miles. Of course, this series is aLine of sight, no obstructions between the intercom systems. The area is also in these phones with the help of an external high-gain antenna on top of your home, business or car, if you use an increase in a unit there.
The beauty of Murs, a portable radio, commercial-duty base station and external intercom / call stations and even motion sensors, the transmission of a verbal warning to other MURS devices. For commercial, industrial or commercial, a MURSSystem functions, can be overcome because there are many problems and obstacles in these applications.
If you need a wireless PA (Public Address) system, there is a wireless device that works with all PA MURS radios. For retail businesses, customer services directly, there is also a device MURS Wireless allows customers to click a button and call for help via a recorded message, transfer printing.
Since each manufacturer can MURS wireless device, selecting a MURSSystem keeps you from what products to offer on a particular manufacturer select blocked.
Regardless of the wireless intercom system you choose, give you the comfort and security that must be installed quickly without problems.
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