- •Lesson 1
- •I. Arrange synonyms in pairs and memorize them:
- •II. Arrange antonyms in pairs and memorize them:
- •III. Read and translate the text: “electronic principles”
- •VI. Complete the following sentences, using active vocabulary:
- •VII. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VIII. Answer the following questions:
- •IX. Put the questions to the following sentences:
- •X. Translate the sentences. Define the function of Gerund:
- •XI. Translate the following sentences paying attention to the functions of the Gerund:
- •Lesson 2
- •V. Complete the following sentences, using active vocabulary:
- •VI. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VII. Answer the following questions:
- •VIII. Put the questions to the following sentences:
- •IX. Translate the sentences. Explain the conditional sentences:
- •XI. Read the following supplementary text and translate it without a dictionary; entitle it.
- •Lesson 3
- •I. Arrange synonyms in pairs:
- •II. Read and translate the text: “the electron tubes”
- •VI. Complete the following sentences, using active vocabulary:
- •VII. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VIII. Answer the following questions:
- •IX. Translate the sentences. Pay attention to the -ing form:
- •X. Define the part of the speech of each world:
- •XI. Explain the suffiхes “-able”
- •I. Memorize the pronunciation of the following words and word combinations:
- •II. Find the Ukrainian equivalents for the following English word combinations.
- •III. Read and translate text: “how electric light is produced”
- •I. Fill in the blanks with following words:
- •II. Arrange synonyms in pairs and translate them:
- •IV. Put the words in order:
- •V. Complete the following sentences, using active vocabulary:
- •VI. Which of the following statements are true or false? If statement is wrong, correct it:
- •VII. Answer the following questions:
- •VIII. Describe an electric lamp and the process of producing the light in it.
- •IX. Define the tense-forms of the verbs in the following sentences and translate them into
- •X. Render the text, according to the scheme. Lesson 4 Text: Amplifiers
- •1. Pronounce the following words paying attention to the letter combinations:
- •II. Memorize the pronunciation of the following words:
- •III. Read and translate the text: “amplifiers”
- •Post-text exercises
- •I. Find the English equivalents for the following Ukrainian words and word combinations:
- •VI. Answer the following questions:
- •VII. Translate the following definitions and memorize the terms:
- •VIII. Translate the following sentences paying attention to the Subject clauses:
- •IX. Translate the following sentences paying attention to the Predicative clauses:
- •X. Translate the following sentences paying attention to the Object clauses. Name the tenses:
- •XI. Change the following sentences into Indirect speech. Mind the Sequence of Tenses:
- •XII. Read the following supplementary text and translate it using, a dictionary.
- •XIII. Say a few words about the types of amplifiers and their application. Lesson 5 Text: What is amplitude modulation and % ge of modulation?
- •I. Memorize the pronunciation of the following words:
- •II. Read and translate the text: “what is amplitude and % ge of modulation”
- •Post-text exercises:
- •V. Complete the following sentences, using active vocabulary:
- •VI. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VII. Answer the following questions:
- •VIII. Translate the following definitions and memorize the terms:
- •IX. Translate the following sentences paying attention to the attributive clauses:
- •X. Translate the following sentences paving attention to the adverbial clauses:
- •XI. Retell the text according to the scheme. Lesson 6 Text: Communication
- •I. Arrange synonyms and antonyms in pairs and memorize them:
- •II. Read and translate the text: “communication”
- •Post-text exercises
- •V. Complete the following sentences, using active vocabulary:
- •VI. Answer the following questions:
- •VII. Memorize the following terms:
- •VIII. State the functions of the Infinitive and translate the sentences:
- •IX. Translate the sentences paying attention to the forms of the Infinitive:
- •X. Read the following supplementary text and translate it without a dictionary; entitle it.
- •XI. Speak on the problems:
- •Lesson 7
- •I. Pronounce the following words paying attention to the stress markings:
- •II. Learn the following words
- •III. Find the English equivalents for the following Ukrainian words and word combinations:
- •VI. Read and translate the text: “messages by electricity”
- •I. Give the Ukrainian equivalents for the following English word combinations:
- •II. Find in the text the English equivalents for the following Ukrainian word combinations:
- •III. Fill in the blanks with the following words:
- •VIII. Translate the following sentences paying attention to the use of Perfect Tenses:
- •IX. Translate the following sentences paying attention to the functions of "it":
- •X. Translate the following sentences paying attention to the functions of "that":
- •XI. Translate the following words paying attention to the suffixes;
- •XII. Translate the following sentences into English:
- •XIII. Open the brackets using the correct form of the Infinitive:
- •XIV. Read the following supplementary text and translate it without a dictionary.
- •XV. Describe the way electricity is used for sending messages. Lesson 8
- •I. Pronounce the following words paying attention to the stress markings:
- •II. Learn the following words
- •III. Read and translate the text: “the electric telegraph”
- •V. Answer the following questions:
- •VI. Translate the following definitions and memorize the terms:
- •VII. Open the brackets using the correct tense form:
- •VIII. Translate the following sentences paying attention to the verbs in the Passive Voice:
- •IX. Use the Passive Voice (with the preposition "by") in the following sentences:
- •X. Translate the following sentences paying attention to the tense forms of the verb:
- •XI. Analyze the following words and translate them paying attention to the negative prefixes:
- •XII. Read the following supplementary text and translate it without a dictionary; entitle it.
- •Lesson 9 Text: The History of Telephone
- •IV. Read and translate the text: “the telephone”
- •I. Find the Ukrainian equivalents for the following English words and word combinations:
- •II. Find in the text the English equivalents for the following Ukrainian word combinations:
- •III. Fill in the blanks with the following words:
- •IV. Arrange synonyms in pairs and translate them:
- •V. Answer the following questions:
- •VI. Translate the following definitions and memorize the terms:
- •VII. Translate the sentences paying attention to the tense forms of the verbs in the Passive Voice:
- •VIII. Complete the following sentences and translate them into Russian:
- •IX. Translate the following sentences:
- •X. Translate the following sentences paying attention to the -ing- forms. Define what part of speech they are:
- •XI. Fill in the blanks with the following prepositions:
- •XII. Translate the following sentences paying attention to the use of the conjunctions:
- •Lesson 10
- •I. Find in the text the English equivalents for the following Ukrainian word combinations:
- •II. Find the Ukrainian equivalents for the following English words and word combinations:
- •III. Put the words in order:
- •IV. Fill in the blanks with the following words:
- •V. Complete the following sentences, using active vocabulary:
- •VI. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VII. Answer the following questions:
- •VIII. Open the brackets using the correct tense form:
- •IX. Form Participle I and Participle II of the following verbs:
- •X. Translate the following sentences paying attention to Participle I and Participle II:
- •XI. Read the following supplementary text and translate it using a dictionary. Put your own questions on the text and discuss them with your fellow-students; entitle it.
- •Lesson 11 Text: Main task and application of radio
- •I. Find the Ukrainian equivalents for the following English words and word combinations:
- •II. Read and translate the text: “radio”
- •I. Without understanding the inquiries of pure science we cannot follow the story of radio. Try to remember all information that you know about the radio.
- •II. Say about a. S. Popov’s contribution to the development of radio.
- •III. Match following words and word combinations with the Ukrainian:
- •IV. Arrange antonyms in pairs and memorize them:
- •V. Arrange synonyms in pairs and memorize them:
- •VI. Put the words in order:
- •VII. Fill in the blanks with the following words:
- •VIII. Complete the following sentences, using active vocabulary:
- •IX. Match terms with the proper definitions:
- •X. Give the definitions to the terms:
- •XI. Which of the following statements are true or false? If the statement is wrong, correct it:
- •XII. Translate the following sentences paying attention to the word "broadcast". State what part of speech this word belongs to:
- •XIII. Answer the following questions:
- •XIV. Put the questions to the following sentences:
- •XV. Choose the correct form of the verb.
- •Lesson Text: Radio Waves
- •I. Memorize the pronunciation of the following words:
- •II. Find the Ukrainian equivalents for the following English words and word combinations:
- •III. Read and translate the text: “radio waves”
- •VII. Answer the following questions:
- •VIII. Speak on different kinds of radio waves and their use in communication.
- •IX. Translate the following sentences into Ukrainian:
- •X. Translate the following sentences paying attention to the Infinitive and its function:
- •I. Find the Ukrainian equivalents for the following English words and word combinations:
- •II. Read and translate the text: “television”
- •I. Try to remember the origin of the word “Television”.
- •III. Match following words and word combinations with the Ukrainian:
- •IV. Arrange synonyms and antonyms in pairs and memorize them:
- •V. Fill in the blanks with the following words:
- •VI. Complete the following sentences, using active vocabulary:
- •VII. Which of the following statements are true or false? If the statement is wrong, correct it:
- •XII. Open the brackets using the correct form of the Infinitive:
- •XIII. Use the Objective Infinitive Construction in the following sentences:
- •XIV. Use the Subjective Infinitive Construction in the following sentences:
- •XV. Read the following supplementary text and translate it using a dictionary. Put your own questions on the text and discuss them with your fellow-students.
- •I. Memorize the following English words and word-combinations:
- •I. Give the Ukrainian equivalents for the following English words and word combinations:
- •II. Put the words in order:
- •III. Fill in the blanks with the following words and word combinations:
- •IV. Complete the following sentences, using active vocabulary:
- •V. Which of the following statements are true or false? If the statement is wrong, correct it:
- •VII. Answer the following questions:
- •VIII. Translate the following definitions and memorize the terms:
- •IX. Change the following sentences into Indirect speech. Mind the Sequence of Tenses:
- •X. Read the following supplementary text and translate it without a dictionary
- •XI. Speak on the problems:
- •XII. Render the text: “What is a computer”
- •Processing hardware
- •Storage hardware
- •VI. Fill in the blanks with necessary words:
- •VII. Give the definitions to the following words:
- •VIII. Which of the following statements are true or false?
- •IX. Answer the following questions:
- •X. Retell the text. Speak about the basic parts of computer.
- •XI. Translate the following sentences paying attention to the Predicative clauses:
- •XII. Translate the following sentences paying attention to the Object clauses. Name the tenses:
XII. Read the following supplementary text and translate it using, a dictionary.
SUPPLEMENTARY TEXT.
Planning the broadcasting-satellite service in the 12 GHz band involves assigning frequency channels and satellite positions in the geostationary orbit to all telecommunication administrations in accordance with their requirements. In their article, published in Telecommunication journal — monthly magazine of the International Telecommunication Union, Dr. A. L. Badalov and Prof. S. V. Borodich— two eminent telecommunication experts of the USSR — discussed the need to plan the broadcasting-satellite service and the conditions governing frequency sharing by television broadcasting facilities and analogue multichannel telephone radio-relay systems.
They found formulae for calculating interference in the telephone channels of the radio-relay system and determined the maximum permissible power flux density produced by a space station in the area of a radio-relay link in a 4 kHz band. They also studied the influence of radio-relay stations on earth receiving stations of the broadcasting-satellite system. The Soviet scientists explained that if there is no plan, the introduction of every new broadcasting-satellite system may necessitate a review of the frequency plans of the existing terrestrial services. Moreover, the introduction of every new system will necessitate co-ordination with the systems previously brought into operation.
XIII. Say a few words about the types of amplifiers and their application. Lesson 5 Text: What is amplitude modulation and % ge of modulation?
Pre-text exercises:
I. Memorize the pronunciation of the following words:
adjacent, assume, coupling, desirable, sufficiently, evaluate, mill watts, technique, discard, shrinkage
II. Read and translate the text: “what is amplitude and % ge of modulation”
Amplitude Modulation (AM) is a process in which the amplitude of a radio frequency current is made to vary and modify by impressing an audio frequency current on it. A radio frequency current has a constant amplitude in absence of modulation and this constant amplitude RF carries no information, i.e. no audio intelligence and is of no use to radio telephone (voice communication), but has application in Morse code communication. So, to give intelligence to the RF current, audio signal is impressed/superimposed on the RF current in a non-linear modulator circuit; as a result of which carrier current amplitude begins to rise to a maximum value above and below its original amplitude during the positive cycle of the audio signal and during the negative cycle of the audio signal, it falls to a minimum value. This results in the carrier having two outlines of the audio signal; this is because the variation at instant in the amplitude of the carrier wave is directly proportional to the value of the modulating signal. During amplitude modulation, two side band frequencies are also produced. Upper sideband frequencies equal to the carrier frequency plus audio frequency and lower side band frequency is equal to carrier frequency minus audio frequency. So the amplitude modulated carrier occupies a space in frequency spectrum, the width of which is equal to twice the highest modulating frequency.
Percentage of modulation:
The degree of modulation in an AM wave is expressed by %ge of maximum deviation from the normal amplitude of the carrier RF wave.
The effect of such modulated wave is measured by a receiver's ability to reproduce the signal in distorted or undistorted manner.
Why over modulation is not desirable?
Over modulation is not desirable, i.e. modulation should not exceed 100 %, because if modulation exceeds 100 % there is an interval during the audio cycle when the RF carrier is removed completely from the air thus producing distortion in the transmission.
Side bands are the sum and difference frequencies produced at the transmitter by the modulating frequencies.
What is Single Side Band (SSB) transmission?
At full modulation the carrier in an AM signal requires two thirds of the power but conveys no information. The second side band can be viewed as redundant (overlooking frequency-selective fading in an ionospheric transmission path, that may distort one side band at times). Interference between several carrier frequencies, resulting in steady audio whistles or 'beats' is another disadvantage of AM.
Power may be saved and the band occupied by an AM signal in the frequency spectrum can be halved if only one side band is transmitted without carrier. The result is single side band suppressed carrier signal, called simply single side band signal (SSB) transmission.
The carrier must be reintroduced at the receiver in such systems and closely adjusted to the original carrier frequency to avoid signal distortion. The introduced carrier carrier must be within 10 or 20 Hertz of the original carrier frequency for adequate intelligibility of voice signals, and stable oscillators are needed for generation of the local carrier.
RF Oscillator
This is the stage where the carrier frequency intended to be used is generated by means of Crystal Oscillator Circuitry or capacitance-inductance based Variable Frequency Oscillator (VFO). The RF oscillator is designed to have frequency stability and power delivered from it is of little importance, hence can be operated with low voltage power supply with little dissipation of heat.
Buffer Amplifier
The low power RF carrier output from the RF oscillator is amplified in this portion and it also keeps the RF oscillator and power amplifier circuits separate electrically imparting frequency as desired by the amateur can be done in this stage, when the carrier frequency multiplication technique is applied here. In it the Morse key for keying out carrier continuous wave can be accomodated.
Modulator
Audio information is impressed upon the carrier frequency at this stage Balanced Modulator
In this type of modulator, while the audio information (voice) is impressed upon the carrier frequency, at the same time its output gives a signal without carrier frequency but yet with the two side band frequencies carrying the voice/audio information.
RF linear Amplifier
RF power amplification is done here and this stage is coupled to the antenna system through antenna impedance matching circuitry. Care is taken at this stage so that no harmonic frequency is generated which will cause interference in adjacent band (splatter) on other bands.