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Wireless Communication
This rapidly growing segment of the communication industry has the potential of providing high-speed high-quality information exchange between portable devices. Wireless communication enables several applications including multimedia Internet-enabled cell phones, automated highway systems, smart homes and appliances and videoconferencing, among others.
4,616 Questions
What kind of person is Bill Gates?
From day one, Gates dreamed of having a personal computer in every home, in every business and in every school. Throughout his career, he never once wavered from this dream. Focusing on software as the means to popularize the PC, Gates built his empire around this central vision and steered clear of all other distractions. And, the vision continues today.
How is infrared used in communication?
Morse code.
Infra red light modulated and sent down fibre optic cable.
Traffic lights
Display panels.
Where can you get a free government issued cell phone?
It is not likely that anyone will actually qualify for a free cell phone. If someone wants a free phone then they usually find they have to sign up to a 12 or 18 month contract with a supplier so they are paying for the rental in effect.
Why would a cell phone not be receiving text messages?
That means that the person you are trying to call has a pre paid phone and he/she does not have enough balance to receive calls.
- http://www.myspace.com/4cfedh22
What is the average price of a mobile phone in the UK?
It depends what model you want. Pay-and-go phones from Argos cost from around £10 (but you must buy £10 airtime when you buy the handset). See the related link for their full range.
Can a boost mobile phone be used on another carrier network?
No other devices will work with Boost as they use an iDEN network and this is not compatible with the GSM networks in the US even though they do use a SIM card. The SIM card does work in them for international roaming though. It will not work either way.
Can you use your phone as a hotspot?
You will be able to use your smartphone as a PC at a Wifi hotspot. You will only be able to use the applications that your smartphone has installed though.
What are the main materials in a cell phone?
Depends how strict the definition of a resource is. Every finite object (e.g. pencils, paper, computers) is possibly a resource, but the ones that people concern themselves with most often, for example, are: money, manpower, energy (in the form of electric), and natural resources like oil, coal, wood and other chemicals.
We have to think about each component in a phone. There is the casing (uses plastic which comes from crude oil and is shaped using heat produced from coal, oil or nuclear as the primary material).
Then there is the microchip. This is silicon, metal and more plastic. Energy and heat used as well.
The screen is the most complex item. Being made up of chemicals such as liquid crystal, and plastic, this takes energy again to make.
Why should children not bring mobile phones to school?
1.It could fall out of your pocket
2.It may ring in class
3.you have to keep up with it or it could get stolen
4.you can't charge it
5.if you don't have pockets and you're a chick, you have to bring a purse that could get lost or stolen if you don't watch it and it's also a hassle to carry around
6. If teachers see them they will take it up
Um, this is all I could think of... hope I helped!
tapped, yes....Traced, yes depending on the phone.
Cellular Taps are actually easier to conduct as its all digital data going through a computer system as opposed to the sound signal system of wired phones.
Traced... this is where it gets tricky. A cell tower cant pinpoint a phone accessing it to the meter. but it does give a relatively accurate location based on factors of signal strength, ping times (distance from tower), and which pallet is being accessed (direction from tower). Usually within a 100 yard area... More modern phones and indeed EVERY smartphone I know of has more advanced systems for tracking such as 3G "Relaytimes" which is very accurate and usually within 50 yards. and GPS which depending on the transmitter in the phone can be accurate to feet in distance.
As far as how you pay... if you use cash it would require some doing to trace a specific phone to being your phone. The ability to trace the phone or tap it doesn't require your method of payment.. that's just what would be needed to link the phone to its user. But believe me.. The only reasons I can think someone would ask this...
1: Don't kidnap people. They will still catch you.
2: Don't cheat on your significant other. They too will still catch you.
3: Don't prank call, the prepaid company will get complaints and kill your number at your cost and you will lose all your paid for minutes.
Why mobile phone is nothing but a time bomb?
the report 'mobile phone health risk.the case for action to protect childrens'
How many people have a cell phone in Spain?
There are 40,525,002 people in Spain. There are 29,093,984 internet users, or 71.8 % of the population uses the internet.
How much does unlimited texting cost with Cincinnati bell?
It would depend on what plan you are on. On an individual plan, umlimited text is $14.99 a month; on a family plan, it's $4.99 a month. If I'm not mistaken, you must also have a talking plan, so you would add that cost to your total. Follow the Cincinnati Bell rate plan link in the related links to know the plans and their costs.
What assumptions do mobile phones make of society in general?
Mobile phones are not capable of making assumptions...
Advantages of mobile phone for campus?
You can obviously get your 3g mobile enabled for a variety of functions that ideally suit campus life, including note taking, video, sound functionality and a range of other flexible uses - <a href="http://www.3gmobilephones1.com">3gmobilephones1</a>
How are magnets used in mobile phones?
mobile phones are magnetic created by rishabh mittal in jagadhri welham boys school
Ummm.....dis is a childish situation and the decision is up to you...i just happen 2 have a good b.friend and i think that u should cut(break up) with him.......he's not TRUSTWORTHY go to www.google.com for more of my answers (i hope that your situation improves) ESSENCE ARCHIE: AGE:13
How much does cell phone fees cost?
It all just depends what the company charges.
Before you buy a phone i would look into all the possible companys first. IF you can't find a company that suites you or wants way to much, you can also go to pre-paid which lets you add how much you want to add to your "account" and you can buy a card from them at walmart,k-mart, radio shack, etc. (:
What are the disadvantages to recycling copper from mobile phones?
errrrr i dunnno <- erm hello, if you dont know the answer then dont answer!
Why FM is more noise immune than AM?
F.M has low noise in received signal than A.M, the reason is being that Noise signal is amplitude mdulated and will be received by the A.M. receiver and will be rejected by Frequency modulation (F.M) receiver. Because F.M is designed to receive frequency modulated signals.
In the course of communication through electromagnetic waves (em) the message waves are usually not able to traverse long distances due to their large wavelength and hence less energy. So for long distance communication, the message wave is superposed on some other high frequency carrier wave which is known as modulation. That can be done in three ways
- by changing the amplitude of carrier wave(am)
- by changing the frequency of carrier wave(FM)
- by altering the phase of carrier wave(pm)
so as the amplitude and energy of am wave can change due to atmospheric disturbances am is distorted but no disturbances can alter the frequency and hence FM is clearer
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Also, Radio waves are a form of light. When a radio wave is amplitude modulated, it varies the "brightness" of the signal. and a "brighter" source of radio waves, like a lightning bolt or the noise from TVs or Computer equipment is "seen" by the radio easier than the actual radio signal, blocking it out.
FM Radio is like varying the "color" of the radio wave, so if you have a brighter source, you can still see the color of the source (signal), and therefore noise and static.
FM Radio is subject to being reflected in an event called multipath, in which the primary radio signal is reflected by hills and tall buildings, and a secondary signal is received and this causes the ghosting you see on a TV screen or that swishing that you hear on FM in a big city, so FM is still susceptible to noise and static, though not as much as AM.
Difference between CDMA 800 and CDMA 1900?
- CDMA800 (low band) is at freq 800MHz whereas CDMA1900 (high band) is at 1900MHz.
- TX power of CDMA800 is lower than the CDMA1900.
