Practise translating noun chains into Russian. Use the dictionary if needed:
Long-distance carrier; long-distance carrier industry; local telephone markets; cable-TV companies; package plan offerings; self-service information-access device; twenty-first century life; Public Switched Telephone Network; intelligent switching device; single telephone number; automatic call distributor; IP call center systems; Web - based text; incoming and outgoing voice calls; The Web - enabled IP call center; call center agent; a suitably equipped multimedia PC; cable modem connection; the Internet data call; return voice call; various component elements; Network Operating System; e-mail network; document exchange; e-mail message handling; Open Systems Interconnection model; Simple Mail Transfer Protocol; mobile communication system; radio-based mobile communication system; advanced radio-based mobile communication system; modern railway communication systems; Short Message Service; Multimedia Message Service; Mobile Data Association; text - messaging service; digital cellular telephone networks; wireless - enabled devices; store - and - forward messaging technology; Code Division Multiple Access; Universal Mobile Telecommunications System; Time Division - Synchronous Code Division Multiple Access.
Translate the following words and word combinations into English:
Телекоммуникационные ресурсы; дистанционное обучение; приобретать товары и услуги; интерактивная обстановка; сжатые видеоданные; получать доступ к информации; беспроводные технологии; спутниковая связь; мультимедийные технологии; организация видеоконференций; телевизионное вещание; принимать оплату онлайн.
In class discuss the advantages and disadvantages of distant learning.
Make a speech on the most popular educational platforms, e.g. Coursera.
Unit 3 radio communication
1. Before reading the text «Radio Communication» answer the general knowledge questions:
- What is radio communication?
- What scientists made their contribution to the study of electromagnetic waves and radio communication?
- How did the development of radio communication influence our life?
2
.
Before reading the text «Radio Communication» check if you know the
meaning of special words:
Amplifier (n) - усилитель
Attempt (n) – попытка
Detect (v) – обнаруживать
Emitter (n) – излучатель
Equipment (n) – оборудование
Frequency (n) – частота
Improvement (n) - усовершенствование
Oscillation (n) – вибрация
Transfer (v) – переносить
Transmit (v) –передавать
Wire (n) – провод
Wireless (adj) – беспроводной
3. Read and translate the text «Radio Communication» Part 1.
Radio Communication (1)
Radio communication requires the use of both transmitting and receiving equipment. The transmitting equipment, which includes a radio transmitter and a transmitting antenna, is installed at the point from which messages are transmitted. The receiving equipment, which includes a radio receiver and a receiving antenna, is installed at the point at which messages are received.
In the transmitter, sinusoidal oscillations are generated at a carrier frequency belonging to some range of radio frequencies. These oscillations are modulated in accordance with the information being transmitted. The modulated radio-frequency oscillations constitute the radio signal. The signal passes from the transmitter to the transmitting antenna, which excites correspondingly modulated electromagnetic waves in the surrounding space.
The radio waves travel to the receiving antenna, in which they excite electrical oscillations. These oscillations are passed on to the receiver. The signal thus received is very weak, since only a very small fraction of the radiated energy reaches the receiving antenna. For this reason, in the receiver the signal first is fed into an amplifier and is then demodulated, or detected. As a result, there is obtained a signal analogous to the signal used to modulate the carrier-frequency oscillations in the transmitter. Usually after an additional amplification, the signal is converted by an appropriate reproduction device into a message equivalent to the original message.
As early as the 1890’s, T. A. Edison made an attempt at radio communication and was granted a patent for his invention. Edison’s work was undertaken before H. Hertz discovered electromagnetic waves in 1888. Although Edison’s efforts did not result in a practical solution, they provided a stimulus for other work on the realization of wireless communication. Hertz invented the spark transmitter, which subsequently underwent various improvements and remained for several decades the type of transmitter most widely used in radio communications.
https://www.techwalla.com/articles/radio-communication-its-uses