- published: 09 Dec 2013
- views: 71552
Telecommunication is – according to Article 1.3 of the International Telecommunication Union´s (ITU) Radio Regulations (RR) – defined as «Any transmission, emission or reception of signs, signals, writings, images and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems.» This definition is also identical to those contained in the Annex to the Constitution and Convention of the International Telecommunication Union (Geneva, 1992).
Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.
Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs. Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles. Modern technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites.
This is the first part of the video lectures on communication systems class 12
A short video to explain the basics of a simple communication system. The block diagram is shown and each part is explained in a most simplified way. Although it could have been extended, but the purpose of this channel is to explain Engineering in minutes or if possible in one minute. I hope you like the video. Rate, Comment and Subscribe if you would like to see more of these in your news feed. Thanks. Find my Blog at - http://www.codefap.com Follow me on Google+ - http://www.gplus.to/omkar4 Follow me on Facebook - http://www.facebook.com/codefap Follow me on Twitter - http://www.twitter.com/codefap My YT Channel 1 - http://www.youtube.com/c0defap My YT Channel 2 - http://www.youtube.com/engineersminute Wallpaper Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By A...
This is the 2nd part of the series Evolution of communication, In the first videohttps://goo.gl/2A9aah we showed how the way we communicate evolved from Pre historic age to modern age. In this video we have described how the wireless commercial communication developed from Push to Talk system to 1G and then 1G to 4G and towards 5G. For first generation we described AMPS(Advanced Mobile Phone system). For 2nd Generation we discussed the introduction of SMS and development of data services through GPRS and EDGE. For 3rd Generation we discussed the introduction of WCDMA in UMTS. We have also covered the key attributes of Release 4, release 5, Release6 and release 8 such as MIMO and QAM and the features of HSDPA, HSUPA and HSPA+. For 4G or LTE we have discussed the salient aspects th...
Do you want to learn more and practice with the content? Would you like to see this video with subtitles? You’ll find this online university course for free at coursera.org Contact: mooc@cdh.leidenuniv.nl
Communication Systems for IIT-JEE Physics | CBSE Class 12 XII | Video Lecture in Hindi In this chapter you will study following topics: Basic working and terms, Signa, Antenna (Attenuation, Repeaters, Range, Dipole Antenna, Modes of propagation), Modulation(Need, Amplification Modulation, Transmitter, Receiver, Modulation index)Types of Modulation. Here is a demo of online lecture. You can watch this complete at http://www.dronstudy.com Here is the list of important URLs related to dronstudy.com Link: https://www..com/watch?v=LaN6f3n2XpU Channel Link: http://www..com/channel/UCPiuJvuyMVFSwcIdBCTpTyQ Website Link: http://www.dronstudy.com Facebook Page:https://www.facebook.com/pages/Dronstudycom/582085731844505?ref=hl
First Lecture: Introduction to communication systems
For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ 7activestudio@gmail.com Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. In telecommunication, a communications system ...
For More Video lectures from IIT Professors .......visit www.satishkashyap.com "DIGITAL COMMUNICATIONS" by Prof. S. Chakrabarti, IIT KGP 1. Syllabus and Overview 2. EM Spectrum and Narrowband Signals 3. Introduction to Digital Communication Systems 4. Introduction to Information Theoretic Approach 5. Introduction to Information Theoretic Approach & Discrete Probability 6. Discrete Probability 7. Measure of Information 8. Average Mutual Information & Entropy 9. Huffman coding 10. Huffman coding & Error Control Coding 11. Error Control Coding & Hamming Code 12. Quantization & PCM 13. PCM (Cont.) 14. Uniform Quantization 15. Non Uniform Quantization 16. Non Uniform Quantization (Cont..) 17. DPCM 18. DPCM (Cont..) 19. Data Modulation 20. Data Modulation (Cont..) 21. Multiplexing 22. Multip...
Physics Communication Systems part 1 (Introduction) CBSE class 12
The present era is the era of ‘information and communication revolution’. In electronics, the term ‘communication’ refers to sending, receiving and processing of information electronically. In 1840’s, communication started with telegraphy. Few decades later, telephony was developed followed by radio at the beginning of twentieth century. Radio communication was made possible by the invention of the electronic valves. It subsequently became even more widely used and refined through the invention and use of the transistors, integrated circuits and other semiconductor devices. More recently, the use of satellites and fiber optics has made communications even more widespread, with an increasing emphasis on computer and other data communications. Radar, telemetry and satellite links play vital...
This is the first part of the video lectures on communication systems class 12
A short video to explain the basics of a simple communication system. The block diagram is shown and each part is explained in a most simplified way. Although it could have been extended, but the purpose of this channel is to explain Engineering in minutes or if possible in one minute. I hope you like the video. Rate, Comment and Subscribe if you would like to see more of these in your news feed. Thanks. Find my Blog at - http://www.codefap.com Follow me on Google+ - http://www.gplus.to/omkar4 Follow me on Facebook - http://www.facebook.com/codefap Follow me on Twitter - http://www.twitter.com/codefap My YT Channel 1 - http://www.youtube.com/c0defap My YT Channel 2 - http://www.youtube.com/engineersminute Wallpaper Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By A...
This is the 2nd part of the series Evolution of communication, In the first videohttps://goo.gl/2A9aah we showed how the way we communicate evolved from Pre historic age to modern age. In this video we have described how the wireless commercial communication developed from Push to Talk system to 1G and then 1G to 4G and towards 5G. For first generation we described AMPS(Advanced Mobile Phone system). For 2nd Generation we discussed the introduction of SMS and development of data services through GPRS and EDGE. For 3rd Generation we discussed the introduction of WCDMA in UMTS. We have also covered the key attributes of Release 4, release 5, Release6 and release 8 such as MIMO and QAM and the features of HSDPA, HSUPA and HSPA+. For 4G or LTE we have discussed the salient aspects th...
Do you want to learn more and practice with the content? Would you like to see this video with subtitles? You’ll find this online university course for free at coursera.org Contact: mooc@cdh.leidenuniv.nl
Communication Systems for IIT-JEE Physics | CBSE Class 12 XII | Video Lecture in Hindi In this chapter you will study following topics: Basic working and terms, Signa, Antenna (Attenuation, Repeaters, Range, Dipole Antenna, Modes of propagation), Modulation(Need, Amplification Modulation, Transmitter, Receiver, Modulation index)Types of Modulation. Here is a demo of online lecture. You can watch this complete at http://www.dronstudy.com Here is the list of important URLs related to dronstudy.com Link: https://www..com/watch?v=LaN6f3n2XpU Channel Link: http://www..com/channel/UCPiuJvuyMVFSwcIdBCTpTyQ Website Link: http://www.dronstudy.com Facebook Page:https://www.facebook.com/pages/Dronstudycom/582085731844505?ref=hl
First Lecture: Introduction to communication systems
For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ 7activestudio@gmail.com Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. In telecommunication, a communications system ...
For More Video lectures from IIT Professors .......visit www.satishkashyap.com "DIGITAL COMMUNICATIONS" by Prof. S. Chakrabarti, IIT KGP 1. Syllabus and Overview 2. EM Spectrum and Narrowband Signals 3. Introduction to Digital Communication Systems 4. Introduction to Information Theoretic Approach 5. Introduction to Information Theoretic Approach & Discrete Probability 6. Discrete Probability 7. Measure of Information 8. Average Mutual Information & Entropy 9. Huffman coding 10. Huffman coding & Error Control Coding 11. Error Control Coding & Hamming Code 12. Quantization & PCM 13. PCM (Cont.) 14. Uniform Quantization 15. Non Uniform Quantization 16. Non Uniform Quantization (Cont..) 17. DPCM 18. DPCM (Cont..) 19. Data Modulation 20. Data Modulation (Cont..) 21. Multiplexing 22. Multip...
Physics Communication Systems part 1 (Introduction) CBSE class 12
The present era is the era of ‘information and communication revolution’. In electronics, the term ‘communication’ refers to sending, receiving and processing of information electronically. In 1840’s, communication started with telegraphy. Few decades later, telephony was developed followed by radio at the beginning of twentieth century. Radio communication was made possible by the invention of the electronic valves. It subsequently became even more widely used and refined through the invention and use of the transistors, integrated circuits and other semiconductor devices. More recently, the use of satellites and fiber optics has made communications even more widespread, with an increasing emphasis on computer and other data communications. Radar, telemetry and satellite links play vital...