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The key target of a cell phone signal booster is to transmute an existing cell signal that is found outside our house or workplace, amplify the signal and then broadcast it to an area which has a weak or may be no signal. A typical cell phone signal booster system consists of an external antenna, a signal boosting amplifier and an internal antenna, with cable connecting all of the components. For the system to work there should be an existing, stable signal to receive and amplify. Cell phone signal boosters generally do not create signal, they only amplify and transmit cell phone signal. Cell phone signal boosters are designed in such a way that they take an existing signal, amplify it, and podcast it to a space that is receiving weak or no signal. In order for the system to work, there must be an existing, stable signal to receive and amplify. The absence of an external antenna in a location that has a stable signal results in the cell phone signal booster not working for you. Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc., this signal strength will vary. Most mobile devices use a set of bars of increasing height to display the approximate strength of this received signal to the mobile phone user.
Generally, a strong mobile phone signal is more likely in an urban area, though these areas can also have some “dead zones” where no reception can be obtained. Cellular signals are designed to be resistant to multipath reception, which is most likely to be caused by the blocking of a direct signal path by large buildings such as high-rise towers. By contrast, many rural or sparsely inhabited areas lack any signal or have very weak fringe reception; many mobile phone providers are attempting to set up towers in those areas most likely to be occupied by users, such as along major highways. The system works by mounting an outside antenna in a location that currently has signal, which is typically on the roof. The signal is passed from the outside antenna, by a cable to a signal amplifier inside the building. Once the signal is amplified, it is then sent to an inside antenna, where it is broadcast out to the area which needs better reception. The system also works in reverse, with the signal from your phone being amplified and broadcast back to the tower, ensuring strong, two-way communication. The last piece of information that will determine which type of signal booster you need is the size of the area that needs to be covered in boosted signal, as well as the layout of the area. The combination of outside signal strength and the size of the area to be covered will determine how strong of an amplifier you’ll need. In addition, the layout of the area to be covered will determine which type of inside antenna you’ll need. If the entire coverage area is located on one floor, then a dome antenna will be the best choice for distributing the boosted signal, but if the coverage area is over multiple floors, then you’ll want to go with a panel antenna, which is more directional and can be used to ensure signal is distributed across the required area. There is a style of signal booster called a cradle, which is meant for one device at a time, and the device must be sitting the cradle the entire time it’s in use. It’s the most mobile of the signal booster options, as the system consists of only the cradle and a magnetic mount outside antenna, and is also the most affordable, but is less convenient when talking on the phone, as one needs to use a Bluetooth headset or speakerphone while in use.
There are two types of signal boosters: Analog Signal Boosters Smart Signal Booster
Most common type of amplifiers. These signal boosters are usually analog repeaters that use traditional technology to amplify (usually) all frequencies from cell phone carriers. They are almost always wide band (or broadband) repeaters. Such boosters are usually sold with a kit of outdoor antenna and cable and require an installation.
Analog Boosters: A big factor affecting the cable industry is the transition from analog to digital signals. Simply put, analog signals worked like radio in that your television tuned into a certain frequency to get a different channel. In this way, the delivery of each individual channel is dependent upon the quality of the frequency your home or business is receiving. Digital works in a more two-way method. In a digital system, information is encoded into a series of 1’s and 0’s at the cable company, transmitted through the wire and then reinterpreted by cable box or a tuner within your television. Your TV requests that a certain channel be delivered to the TV and the cable company honours that request by activating that stream of digital bits. This way, only your overall ability to receive any transmission can be affected by signal quality, not any one channel. Therefore, an amplifier on a digital signal is only important if you’re unable to get any television signal. Adding an amplifier to a working signal won’t make it better.
The ASA is an analog signal amplifier which accepts an analog voltage or current signal and outputs a voltage signal. Several preset input ranges are jumper selectable. ASA is designed to give a Building Automation System signal output the power (wattage) to control MaxitrolTM gas valves normally installed in rooftop units. The top-adjust trimmer potentiometers can be used to make fine adjustments of gain and offset. The output gain can be adjusted anywhere from 1 to 20 times the input on the ASA (gain will vary depending on type of input). The offset of the output can be +/- 0 to 20 VDC. By using voltage divider applications, the ASA can also accept a resistance input.
Features: • Operational to minus 40OF and minus 40OC temperatures • Field selectable input Ranges • LED Power Indicator • Compact and cconomical • Mounts in snap track
Applications: • Provides Sufficient Power to Control MaxitrolTM Gas Valves • Increases Analog Signal Current Rating • Provides Control of Dimming Ballasts • Adapts Non-compatible Signals • Resistance to Voltage Conversion • Current to Voltage Conversion
Smart Boosters This is a new category of Signal Boosters. This new category of modern boosters utilizes powerful all-digital baseband processors to clean the signal before it is rebroadcast hence the “Smart” in the name Smart Signal Booster. Most of the Smart Signal Boosters have gains of 100 dB (compared to analog booster’s gain of 63 to 70 dB) and are carrier-specific. Thus they can have higher gain in the US according to new FCC regulations. Some of these new boosters, while more expensive than traditional analog booster, are plug and play. They usually don’t need the installation of outdoor antennas. Most of the time, Smart Signal Boosters are carrier-specific. One advantage of cellular repeaters is an increase in the cell phone’s battery life since it requires lower power to broadcast the signal to the local bi-directional amplifier due to its proximity to the phone.
External Antennas With any external antenna, it becomes a necessity to remember about its exposure to Mother Nature that can be pretty tough on the equipment. In particular, antennas are susceptible to lighting strikes as they are made of metal and have some level of electricity flowing through them. Another thing to consider is wind. There are two different types of external antennas that one will encounter when deciding on a cell phone signal booster – omni-directional and yagi -directional. Omni-directional antennas are particularly designed to send and receive signal in all directions, so that one is able to reach multiple cell phone towers at the same time and boost cell phone signal for multiple providers. Omni antennas are best suited for circumstances where one needs to support multiple cell phone carriers, each with their own cell tower, and are already receiving at least three bars of signal outside of the house or workplace. It then becomes easier for the Omni antenna to pick up the signal from each of the carriers which is then supplied to the amplifier. This will thus boost the signal inside our home or office.
Yagi antennas on the other hand are designed to send and receive signal in a specific direction. When one is not able to spread over a broad area, you are still able to reach significantly larger distance to cell phone towers that you would not be able to do with an omni antenna. On placing an external antenna in an area which has weak signal, and when we have only one cell provider that we are looking to boost the signal for, then a yagi antenna proves right for our use.
Internal Antennas Panel antennas are designed to podcast and receive signal in only one specific direction and they are proved to be the best suited for either long, rectangular spaces or multiple floors in a building. They can be either mounted on the wall facing down a space or mounted facing downwards at the top of a space and broadcast down and out through multiple floors. Dome antennas on the other hand are designed to cover one floor with signal in all directions and they are meant to be mounted on the ceiling at the center of the space in order to broadcast and receive signal equally in all directions. They are not advisable to be used for multiple floors of coverage. The Female Connector The F connector is a coaxial RF connector commonly used for “over the air” terrestrial television, cable television and universally for satellite television and cable modems, usually with RG-6/U cable. The F connector is not expensive, and has good 75 Ω impedance match for frequencies well over 1 GHz and has usable bandwidth up to several GHz. One reason for its low cost is that it commonly uses the solid conductor of the specified types of coaxial cable as the pin of the male connector. Universally, stainless steel is used for all types of F connectors. The design is subjected to the surface properties of the inner conductor (which must be solid wire) and is not corrosion resistant. Hence waterproof versions are needed for outside use (for example, on aerials). Corrosion resistance can be improved by coating all bare copper wires with silicone grease. The male connector body is typically crimped, or sometimes screwed, on to the exposed outer braid. Female F Type connectors have an external 3/8-32 UNEF thread (9.5 mm diameter). Most male connectors have a matching internally threaded connecting ring, though push-on versions are also available. Signal Amplifier All models include a signal amplifier. Even the cheaper home-use models (typically band selective) now provide 20 dB – 50 dB gain and many of the more expensive models provide over 50 dB. Excellent high-power models used for by commercial operators offer a gain of around 100 dBm. However, since decibels are logarithmic, a 30 dB gain represents a one thousand fold signal power increase. In simple words, the total amplification of a repeater with greater than around 50 dB is likely to be useless without a good, well aligned antenna. This is due to the difficulty of filtering the correct signal out from the background noise, which will be amplified equally, and the limiting maximum signal power of the amplifier (for pico repeaters typically from around 5 dBm (3.2 mW). Standard GSM channel selective repeaters which are operated by telecommunication operators for coverage of large areas and big buildings show an output power around 2 W and high power repeaters show an output power around 10 W.
Yagi antennas on the other hand are designed to send and receive signal in a specific direction. When one is not able to spread over a broad area, you are still able to reach significantly larger distance to cell phone towers that you would not be able to do with an omni antenna. On placing an external antenna in an area which has weak signal, and when we have only one cell provider that we are looking to boost the signal for, then a Yagi antenna proves right for our use.
The design is subjected to the surface properties of the inner conductor (which must be solid wire) and is not corrosion resistant. Hence waterproof versions are needed for outside use (for example, on aerials). Corrosion resistance can be improved by coating all bare copper wires with silicone grease. The male connector body is typically crimped, or sometimes screwed, on to the exposed outer braid. Female F Type connectors have an external 3/8-32 UNEF thread (9.5 mm diameter). Most male connectors have a matching internally threaded connecting ring, though push-on versions are also available.
