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The operating frequency for an in-building cellular repeater system is the frequency your cellular provider uses in your area. For example, in the United States Sprint is a 1900MHz PCS carrier, therefore, if you want to repeat Sprint signals in your building you would need an external "Donor" antenna to receive the available Sprint 1900MHz signal outside, a cable would take the signal from the antenna to a powered amplifier designed to amplify the 1900MHz band. Another coax cable would go from the amplifier to the internal antenna in the building which is what your cellular phone would communicate with.
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What are the Operating frequency for AM and FM?
The AM radio band falls in the comparatively low frequency range of 550 to 1600 KHz while FM radio operates in the 88 to 108 MHZ range and CB operates in the relatively narrow range of 26.95 to 27.405 MHZ. Cellular telephone operates in a frequency band of 825 to 890 MHZ.
Which set of pairings correctly matches the process with its condition?
cellular respiration: anaerobic:: fermentation :anaerobic
What is anroid technology?
Google Android is an operating system based on unix and java that currently operates cellular phones and is being experimented as a netbook operating system. Today you can find a lot of Android phones reviews on youtube, just search for it... The most important feature of Google Android is that it's an Open Source mobile operating system, meaning that any phone manufacturer can develop mobiles that use it. This has resulted in HTC, LG, Motorola, Samsung and many others all announcing the launch of Android based phones.
Is Cellular one a prepaid service?
yes i had it before
What part of a cellular network manages handoff?
The base station
Where can one purchase a cellular repeater?
Cellular repeaters can be purchased from various sources, including online retailers such as Amazon, eBay, and Best Buy. They can also be found at specialized electronics stores or directly from the manufacturers' websites. It is important to make sure the repeater is compatible with your specific cellular network and frequency bands before making a purchase.
What are the Operating frequency for AM and FM?
The AM radio band falls in the comparatively low frequency range of 550 to 1600 KHz while FM radio operates in the 88 to 108 MHZ range and CB operates in the relatively narrow range of 26.95 to 27.405 MHZ. Cellular telephone operates in a frequency band of 825 to 890 MHZ.
What gsm frequency is consumer cellular?
850 or 1900 will work
What year the first commercial cellular system begins operating in Chicago?
1983
How fractional frequency reuse can be used to decrease the number of cells used in a cellular network?
divide cells into rings which will operate with different levels of frequency reuse
Why reverse channel have lower frequency than forward channel?
its just a convention used in cellular systems.
Communications occur over what such as telephone lines cables cellular radio networks and satellites?
operating systems
Why cellular telephones utilize is very low frequency waves?
Cellular telephones utilize very low frequency waves because they can travel long distances and penetrate obstacles such as buildings more effectively compared to higher frequency waves. This allows for broader coverage and better reception in rural or urban areas. Additionally, lower frequency waves require less power consumption, which helps prolong the battery life of mobile devices.
What frequency range is shared by most new cellular telephones and portable phones and wireless Lan?
2.4-2.4835GHz
What operating system type best classifies Android?
Android is a mobile operating system designed to be run on cellular devices, and more recently tablet computers and television sets.
When a cellphone is turned on what energy are formed?
When a cellphone is turned on, electrical energy is used to power on the device and convert it into the various forms of energy required for its functioning: radio frequency (RF) energy for communication with cellular networks, light energy for the screen display, and thermal energy due to the device's internal components operating.
What is repeatability?
A repeater connects two segments of your network cable. It retimes and regenerates the signals to proper amplitudes and sends them to the other segments. When talking about, Ethernet topology, you are probably talking about using a hub as a repeater. Repeaters require a small amount of time to regenerate the signal. This can cause a propagation delay which can affect network communication when there are several repeaters in a row. Many network architectures limit the number of repeaters that can be used in a row. Repeaters work only at the physical layer of the OSI network model. DEFINITION - 1) In digital communication systems, a repeater is a device that receives a digital signal on an electromagnetic or optical transmission medium and regenerates the signal along the next leg of the medium. In electromagnetic media, repeaters overcome the attenuation caused by free-space electromagnetic-field divergence or cable loss. A series of repeaters make possible the extension of a signal over a distance. Repeaters remove the unwanted noise in an incoming signal. Unlike an analog signal, the original digital signal, even if weak or distorted, can be clearly perceived and restored. With analog transmission, signals are restrengthened with amplifiers which unfortunately also amplify noise as well as information. Because digital signals depend on the presence or absence of voltage, they tend to dissipate more quickly than analog signals and need more frequent repeating. Whereas analog signal amplifiers are spaced at 18,000 meter intervals, digital signal repeaters are typically placed at 2,000 to 6,000 meter intervals. 2) In a wireless communications system, a repeater consists of a radio receiver, an amplifier, a transmitter, an isolator, and two antennas. The transmitter produces a signal on a frequency that differs from the received signal. This so-called frequency offset is necessary to prevent the strong transmitted signal from disabling the receiver. The isolator provides additional protection in this respect. A repeater, when strategically located on top of a high building or a mountain, can greatly enhance the performance of a wireless network by allowing communications over distances much greater than would be possible without it. 3) In satellite wireless, a repeater (more frequently called a transponder) receives uplink signals and retransmits them, often on different frequencies, to destination locations. 4) In a cellular telephone system, a repeater is one of a group of transceivers in a geographic area that collectively serve a system user. 5) In a fiber optic network, a repeater consists of a photocell, an amplifier, and a light-emitting diode (LED) or infrared-emitting diode (IRED) for each light or IR signal that requires amplification. Fiber optic repeaters operate at power levels much lower than wireless repeaters, and are also much simpler and cheaper. However, their design requires careful attention to ensure that internal circuit noise is minimized. 6) Repeaters are commonly used by commercial and amateur radio operators to extend signals in the radio frequency range from one receiver to another. These consist of drop repeaters, similar to the cells in cellular radio, and hub repeaters, which receive and retransmit signals from and to a number of directions. 7) A bus repeater links one computer bus to a bus in another computer chassis, essentially chaining one computer to another.
