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Why cant you get cell service in my house if tower is next door?
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What service does Cell C provide?
Cell C is a South African mobile network provider.
A house is to blueprints as a cell is to?
chromosomes-novanet
Do cell phones create radiation?
To a human being cell phone radiation is harmless. use of a cell phone is equivalent to a nominal amount of time in the sun. A live radio tower however could be extremely dangerous, do not climb over the safety fences or on the tower itself.
How do cell phone jammers work?
How Cell Phone Jammers work Cell phones are everywhere these days. According to the Cellular Telecommunications and Internet Association, almost 195 million people in the United States had cell-phone service in October 2005. And cell phones are even more ubiquitous in Europe. It's great to be able to call anyone at anytime. Unfortunately, restaurants, movie theaters, concerts, shopping malls and churches all suffer from the spread of cell phones because not all cell-phone users know when to stop talking. Who hasn't seethed through one side of a conversation about an incredibly personal situation as the talker shares intimate details with his friend as well as everyone else in the area? While most of us just grumble and move on, some people are actually going to extremes to retaliate. Cell phones are basically handheld two-way radios. And like any radio, the signal can be disrupted, or jammed. In this article, you'll see how cell-phone jammers work and learn about the legality of their use. Disrupting a cell phone is the same as jamming any other type of radio communication. A cell phone works by communicating with its service network through a cell tower or base station. Cell towers divide a city into small areas, or cells. As a cell-phone user drives down the street, the signal is handed from tower to tower. A jamming device transmits on the same radio frequencies as the cell phone, disrupting the communication between the phone and the cell-phone base station in the tower. It's a called a denial-of-service attack. The jammer denies service of the radio spectrum to the cell-phone users within range of the jamming device. amming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out. Cell phones are designed to add power if they experience low-level interference, so the jammer must recognize and match the power increase from the phone. Cell phones are full-duplex devices, which means they use two separate frequencies, one for talking and one for listening simultaneously. Some jammers block only one of the frequencies used by cell phones, which has the effect of blocking both. The phone is tricked into thinking there is no service because it can receive only one of the frequencies. Less complex devices block only one group of frequencies, while sophisticated jammers can block several types of networks at once to head off dual-mode or tri-mode phones that automatically switch among different network types to find an open signal. Some of the high-end devices block all frequencies at once, and others can be tuned to specific frequencies. To jam a cell phone, all you need is a device that broadcasts on the correct frequencies. Although different cellular systems process signals differently, all cell-phone networks use radio signals that can be interrupted. GSM, used in digital cellular and PCS-based systems, operates in the 900-MHz and 1800-MHz bands in Europe and Asia and in the 1900-MHz (sometimes referred to as 1.9-GHz) band in the United States. Jammers can broadcast on any frequency and are effective against AMPS, CDMA, TDMA, GSM, PCS, DCS, iDEN and Nextel systems. Old-fashioned analog cell phones and today's digital devices are equally susceptible to jamming. The actual range of the jammer depends on its power and the local environment, which may include hills or walls of a building that block the jamming signal. Low-powered jammers block calls in a range of about 30 feet (9 m). Higher-powered units create a cell-free zone as large as a football field. Units used by law enforcement can shut down service up to 1 mile (1.6 km) from the device. Electronically speaking, cell-phone jammers are very basic devices. The simplest just have an on/off switch and a light that indicates it's on. More complex devices have switches to activate jamming at different frequencies. Components of a jammer include: Antenna Every jamming device has an antenna to send the signal. Some are contained within an electrical cabinet. On stronger devices, antennas are external to provide longer range and may be tuned for individual frequencies. Circuitry The main electronic components of a jammer are: * Voltage-controlled oscillator - Generates the radio signal that will interfere with the cell phone signal * Tuning circuit - Controls the frequency at which the jammer broadcasts its signal by sending a particular voltage to the oscillator * Noise generator - Produces random electronic output in a specified frequency range to jam the cell-phone network signal (part of the tuning circuit) * RF amplification (gain stage) - Boosts the power of the radio frequency output to high enough levels to jam a signal Power supply Smaller cell phone jammers are battery operated. Some look like cell phone and use cell-phone batteries. Stronger devices can be plugged into a standard outlet or wired into a vehicle's electrical system.
What do you need to do to get online with splinter cell for ps2?
Get internet DSL or cable service purchase a router and connect the ethernet cable
When you enter your sim it says no service?
If your cell phone has a sim card, your phone may say out of service if you are far from a town or city. A phone needs a cell tower to work, so you may get an out of service message if you are not close to cell tower.
Why Weak cell phone signals outside the house?
Might because of your distance from a cell tower.
Can you get a cellphone signal on the moon?
there is no cell phone service on the moon because there is no cell phone tower.
Why doesnt your iPhone get service?
Either you are not in signal range i.e. not close enough to a cell tower or there's an obstruction (mountain) between your phone and the service tower. Or your phone is just broken.
What is a 'house phone number'?
Before cell phones, anyone who had telephone service had a "house phone" or what is now called a "landline". Since cell phones have become popular, people will often use the words "house phone" to distinguish between that service/number and their cell phone service/number.
What do you do if you cant find your cell but you know its in your home?
you should call your cell from your house phone or a friends phone.
What is the basic need for cell phones?
to call and text people if you cant go to their house OR YOU CANT KEEP UP WITH THEM AND YOU HAVE BUISNESS
What do you do when you lose your phone and you cant find it at all?
If the phone is on, try calling the phone and listen for the ring. If the ringer is off but the phone is on, try text message from computer etc or call your cell phone company and ask for tech support. Have them use the call registry to see which tower it last used when a call was made or if the phone still has power and is on, which tower it's currently connected to. Then have them pull it up on the map service they have and tell you the approximate location of the tower. That will tell you in some cases if you left it at home, work, friend's house, etc or buy a new 1
How does data travel from mobile to mobile?
Using radio waves to a cell tower and then from cell tower to cell tower via a high speed packet switching network.
Why cant you have your house phones connected to your cell phone so you can pick up any phone that is tied to your cell phone number?
If you have call forwarding, you can.
Why are there places that a cell phone does not work?
I'll list a few: -Service isn't provided there. -Your not receiving signal from the cell tower since your out of range. -Sometimes repairs on cell towers cause signals not to be sent at all.
Is mobile broadband available anywere?
No, just as cell phone service has gaps, so does mobile broadband. It also depends upon the cell tower providers. I was right next to a cell tower the other day and couldn't get good reception for the mobile broadband to work even though I had full bars on my phone.
