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Telecommunications

Telecommunications refer to the transmission of information over distances for the purpose of communication. In the modern age of electronics and electricity, telecommunication includes the use of electrical devices, radio and microwave communications, fiber optics, orbiting satellites and the Internet.

2,044 Questions

How do you hook up a DSL connection to your computer?

the actual physical connection is simple, almost every DSL provider will sell/lease you a modem, and probably install it, either free or for a price. The DSL modem connects either to your phone line, a fiber optic line (if your in a large city) or most commonly a coaxal line, just like your tv. That modem, also connected to the power outlet, is then connected to your computer via a jumper Ethernet line, commonly Cat5e.

You could also connect a router to the modem instead, and then connect your computer to the router via another Cat5e line, or Wifi. This is only required when you are connecting many computers to the same internet connection, or when you really need Wifi for a laptop or remote computer.

How many Morse codes are there in the world?

there are two different symbols in Morse code: dots and dashes

for example Morse code would be (in international Morse code):

-- --- .-. ... . -.-. --- -.. .

What is the average salary for telecommunications workers?

It depends on the scope or coverage of work and what functions are going to perform in a certain telecommunication company. Here in new zealand the basic rate for a Cellular /Transmission,inside plant Technician is 20 NZd / Hr, the highest rate will be 26 NZD / Hr. It depends on the scope or coverage of work and what functions are going to perform in a certain telecommunication company. Here in new zealand the basic rate for a Cellular /Transmission,inside plant Technician is 20 NZd / Hr, the highest rate will be 26 NZD / Hr. It depends on the scope or coverage of work and what functions are going to perform in a certain telecommunication company. Here in new zealand the basic rate for a Cellular /Transmission,inside plant Technician is 20 NZd / Hr, the highest rate will be 26 NZD / Hr. It depends on the scope or coverage of work and what functions are going to perform in a certain telecommunication company. Here in new zealand the basic rate for a Cellular /Transmission,inside plant Technician is 20 NZd / Hr, the highest rate will be 26 NZD / Hr. It depends on the scope or coverage of work and what functions are going to perform in a certain telecommunication company. Here in new zealand the basic rate for a Cellular /Transmission,inside plant Technician is 20 NZd / Hr, the highest rate will be 26 NZD / Hr.

Morse code who invented it?

The land telegraph was invented by Samuel F. B. Morse, in the 1830s I think. He built this thing that when a button was pushed at one place, it could cause a clacker to go clack at the other end of a wire many miles long. In order to send information over it, he invented a code of clacks for each letter of the alphabet ... which he modestly called Morse's Code. The message sent as the first public demonstration was "What hath god wrought".

What is the att uverse code for Sony ht-ct100 soundbar?

Spent hours trying to find the code myself -- 4029 should do the trick!

Here's a tutorial in case you need it, I've slightly re-written the instructions to help you.

01.) Power on the device to be programmed (Sony HT-CT100 Sound Bar).

02.) Point the remote control at the selected device.

03.) Press and hold the AUX key along with the OK key. Hold both keys for one second, then release. The four mode keys (AT&T, TV, DVD, AUX) on the remote control flash twice to indicate you are in search mode.

04.) Enter the 4-digit device code (4029) using the keypad on the remote.

05.) The appropriate mode key (AUX) will give a long flash indicating it received the code.

06.) Point the remote control at the selected device and press the POWER key to turn off the device and confirm programming.

How much does it cost to activate an Att phone?

Most activations should happen within a few minutes of selecting your plan. If there are any questions around your account status or credit, there may be delays in activation. There have been some problems with activation over the past few days of release but AT&T says the problem is being corrected.

Why -48volt in telecommunication?

Let's take the voltage first. The exchange 'battery' (or CO if you are in the USA) is set between -48 to -55v depending on where you are in the world, and to some extent, the type of exchange you are connected to. The figure of -48v is not set in stone. No need to worry if it is above this.

This battery voltage drops the minute a telephone is taken off of hook. The exchange 'equipment' senses the current flowing and drops the voltage to around 9 to 11 volts. The On-hook voltage stems from a day of long lines, electro-mechanical switching and phones.

They next point is that in an idle state a telephone line has a NEGATIVE potential with the EARTH being positive. Take out a voltmeter and set it so you can measure 50v DC. Place the POSITIVE probe to a known good earth and the NEGATIVE probe to the A and then the B legs respectively. (Ring & Tip in the USA). You will measure 48-55 volts on one leg, and around 4v on the other in relation to earth. The exchange battery has it's positive terminal put to Earth. Why? Simple. Corrosion. Positive earth systems don't suffer from corrosion (caused in a similar way to electro plating) in the same fashion as negative earth systems. Something the telephone companies worked out a very long time ago.

What is the GSM?

please answer

GSM is global system for mobile.

Its wireless communication system.

Was Morse code used in World War I?

Morse Code requires less transmitter power and/or a less sensitive receiver to successfully send a given signal over a given path both of which can be an advantage, for example in mobile communications. Conversely, for the same transmitter power and receiver sensitivity, a Morse Code signal may be sent successively over a longer distance or under noisier conditions, for example when "Jamming" is in use. Finally, with the technology available in WWII it was much easier to send encrypted messages with Morse Code, since voice scramblers and computers were generally unavailable. That is, all that was necessary was to encode a text message with some encryption scheme, often by hand, and send the encrypted characters otherwise "in the clear" by Morse Code.

Hotel telephone call conversation about reservation?

good morning sir,is this is reception could u provide information about luxierious rooms in our hotel,and i would like to know about how much ur charging?

Who is the actress in the ATT dead zone commercial?

If you are referring to the scary neighbor lady, I thought she may be the actress who played Nina on the t.v. series "Just Shoot Me".

Can you track a cell phone from your PC?

i found it as i had put the full lookout on my dads phone

and it linked to plan b

but it is meant to be a last resort

using this app: https://market.android.com/details?id=com.lookout.labs.planb.

for more information visit this website

http://track-android-phones.blogspot.com/

If intermittent and difficult-to-diagnose wireless communication errors occur what might be the culprit?

Interference - If intermittent and difficult-to-diagnose wireless communication errors occur, interference might be the culprit.

What happened to the Morse code operators when the telephone was invented?

First of all; It would be "What happened after Morse code was invented" and Second of all; do your own stupid work.

When was Morse code used?

Morse Code provides a letter-based method of communication by means of any type of signal that can be switched on and off ... light, sound, etc. As such, it can accomodate messages in any language that uses the familiar Roman (English) alphabet. While using the simplest possible transmitting and receiving equipment, it is highly immune to noise, and can succeed over very noisy 'channels'.

How can you use your ATT SIM card in a tracfone?

"first you have to read your sim serial number remember that or write it down. now go to tools scroll all the way down and go to sim app ignore all that stuff that pops up and put in the last 8 digits of your sim serial number. if that doesnt work i cant help you.

it worked for me."

Nobody reports this as being potentially successful, and members of Tracphone discussion groups are unaware of this workaround.

In reality, TF chaingangs the SIM to that phone and the provider they choose in that locality, by zip code. SIM swaps, porting, even transfer of minutes and air time usually involve inputting codes into the phone given by Customer Service, and the first level of Customer Service usually follows a scripted pattern which too often does not resolve all the issues. If you have more than 1100 minutes to move, it will have to be elevated to another supervisory level.

TF does this because the phones are so inexpensive that resellers could basically purchase a significant number and then jailbreak them, eliminating their future profit selling their airtime. In most cases, the phones aren't leading edge technology - usually old models from manufacturers that are middle of the road in features. Buying a new one is cheaper than investing the average wage in hours it takes to get it done.

For example, a $40 purchase will get you a Double Minutes For Life phone, under $20, and a $19.99, 60 minute, 90 day airtime card. Combined with the start up minutes and time, you net 140 minutes, and 150 days air time. Two phone purchases a year totalling $80 just about cover all you need. 3G service runs $75 a month in comparison - on contract.

Tracphone leases airtime from ALL the major providers, Tracphone users rarely hang on long enough while moving to transition from one to another. It's a pay as you go phone service, not an unlimited plan. Treated that way, it's quite successful.

Considering the huge difference in service and models available, there really is no point in jailbreaking a Tracphone. It's like stealing an old used Yugo, it's practically it's own punishment.

Name an application of the total internally reflected of light in the world of telecommunication?

It allows fibre optic cables to work thus transferring data over huge distances very quickly. That said it's not perfect and the signal strength still needs to be boosted at set intervals depending on the quality of the cable.

What is the evolution of data communication?

The 1970s and 1980s saw a merger of the fields of computer science and data communication which has profoundly changed the technology and products . The revolutionary merger has resulted in a new combined computer communication industry.