What Are the Different Types of Radio Internships?

This book is based on the National Occupational Standards of the Radio Commissioner formulated by the Ministry of Human Resources and Social Security, with the knowledge and content of the radio commissioner as the core, and combined with the professional skills appraisal requirements. The content is divided into 8 chapters: circuits, analog electronic technology, digital electronic technology, high-frequency electronic technology, electronic measurement principle, radio whole machine debugging principle, single-chip microcomputer technology, safe and civilized production knowledge, etc.

Radio debugger training course

Right!

This book is based on national human resources and

Each chapter contains basic knowledge, skills training, debugging examples, unit test questions and answers. The knowledge content and skills training are closely combined to facilitate readers to study and take the exam. During the writing process, pay attention to the transition from basic skills to complex machine debugging. From shallow to deep, try to combine the latest job requirements and professional development requirements of the electronics industry enterprises, integrate with the current status of higher vocational education, and highlight new knowledge, new Technology, new craftsmanship, focus on vocational ability training, improve students' learning interest and exploration ability. This book is equipped with e-learning courseware, etc. See the Preface for details. ^[1]

Chapter 1 Circuits (1)

1.1 Basic knowledge of circuits (1)

1.1.1 Basic variables of circuit analysis (1)

1.1.2 Circuit components (3)

1.1.3 Voltage source (5)

1.1.4 Kirchhoff's Law (7)

1.1.5 Basic Concepts of Sinusoidal AC (9)

1.2 Basic Skills of Electrician (14)

1.2.1 Identification and measurement of resistors (14)

1.2.2 Identification methods of common capacitors (16)

1.2.3 Identification method of inductor (18)

1.3 Multimeter debugging example (19)

Unit Test Question 1 (24)

Chapter 2 Analog Electronics (27)

2.1 Basic knowledge of analog electronic technology (27)

2.1.1 Common Semiconductor Devices (27)

2.1.2 Basic knowledge of amplifier (29)

2.1.3 Negative feedback circuit (33)

2.1.4 Operational Amplifier (33)

2.2 Basic Skills of Analog Electronic Technology (35)

2.2.1 Identification and measurement of diodes (35)

2.2.2 Identification and measurement of triode (36)

2.2.3 Identification and measurement of thyristors (37)

2.2.4 Identification and Application of Integrated Operational Amplifier (38)

2.2.5 Parameter test of basic amplifier circuit (40)

2.3 Example of Debugging a Linear Regulated Power Supply (42)

Unit Test Question 2 (46)

Chapter 3 Digital Electronics Technology (51)

3.1 Basic Knowledge of Digital Electronics Technology (51)

3.1.1 Basic Knowledge of Digital Circuits (51)

3.1.2 Knowledge of Logical Algebra and Logical Expressions (52)

3.1.3 Basics of Combinational Logic Circuits (54)

3.1.4 Basics of Sequential Logic Circuits (56)

3.1.5 Digital to Analog and Analog to Digital Conversion (59)

3.2 Basic Skills of Digital Electronics Technology (61)

3.2.1 Identification and measurement skills of common components (61)

3.2.2 Clock Oscillator (62)

3.2.3 Square wave signal generating circuit (63)

3.3 Digital clock debugging example (64)

Unit Test Question 3 (67)

Chapter 4 High Frequency Electronics (71)

4.1 Basic knowledge of radio (71)

4.1.1 Radio wave band division (71)

4.1.2 Radio wave propagation methods (72)

4.1.3 Transmission and reception of radio signals (74)

4.2 High-frequency amplifier and high-frequency oscillator (75)

4.2.1 High Frequency Amplifier (75)

4.2.2 High Frequency Oscillator (77)

4.3 Modulation and demodulation (81)

4.3.1 Amplitude Modulation Circuit (81)

4.3.2 Amplitude detection circuit (83)

4.3.3 Frequency Mixing Circuit (86)

4.3.4 Frequency Modulation Circuit (86)

4.3.5 Frequency Discrimination Circuit (88)

4.4 Phase-Locked Loop and Frequency Synthesis (88)

4.4.1 Working principle of phase locked loop (88)

4.4.2 Frequency Synthesizer (89)

4.5 Basic Skills of High Frequency Electronic Technology (89)

4.5.1 Testing skills for high-frequency components (89)

4.5.2 Debugging skills for high-frequency unit circuits (90)

4.5.3 Debugging Skills of High Frequency Machine (95)

4.6 Radio debugging example (98)

Unit Test Question 4 (102)

Chapter 5 Principles of Electronic Measurement (105)

5.1 The main content of electronic measurement (105)

5.2 Measurement error and data processing (105)

5.2.1 Representation method of measurement error (106)

5.2.2 Sources of measurement errors (106)

5.3 Common measuring instruments and precautions (107)

5.4 Basic Skills of Electronic Measurement (110)

5.4.1 Use of a signal generator (110)

5.4.2 Use of oscilloscope (114)

5.4.3 Use of electronic counters (121)

5.4.4 Use of the frequency sweeper (124)

Unit Test Question 5 (128)

Chapter 6 Radio Debugging Principles (130)

6.1 Working principle of CRT color TV (130)

6.1.1 CRT color picture tube (130)

6.1.2 Block diagram structure of color TV (131)

6.2 Principles of LCD TV (132)

6.2.1 LCD TV Circuit Structure (132)

6.2.2 LCD display (133)

6.3 Set-top box principle (133)

6.3.1 Concept and Classification of Digital Set-Top Box (133)

6.3.2 Working principle of DVB set-top box (134)

6.3.3 Structure of DVB STB (135)

6.4 Radio whole machine debugging technology (137)

6.4.1 Radio whole machine debugging process (137)

6.4.2 Maintenance method of the whole radio (139)

6.5 TV debugging example (141)

Unit Test Question 6 (148)

Chapter 7 Microcontroller Technology (151)

7.1 Development of Microcontroller (151)

7.2 Structure of the single-chip microcomputer (152)

7.2.1 The Classic Structure of a Computer (152)

7.2.2 The basic structure of a single-chip microcomputer (152)

7.3 AVR microcontroller (153)

7.3.1 Features of AVR Microcontroller (153)

7.3.2 Selection of AVR MCU (153)

7.3.3 AVR microcontroller software (154)

7.3.4 Development Tools for AVR Microcontrollers (154)

7.4 Microcontroller Development and Use (154)

7.4.1 Minimal system of single chip microcomputer (154)

7.4.2 ICC AVR Development Compilation Environment (159)

7.4.3 AVR Studio download debugging tools (163)

7.5 Microcontroller Debugging Example (168)

Unit Test Question 7 (172)

Chapter 8 Safe and Civilized Production (175)

8.1 Safety Production Management (175)

8.1.1 Safe use of electricity (175)

8.1.2 Safe power consumption measures (176)

8.2 Production Technology Management (178)

8.3 6S Management (179)

Appendix A National Occupational Standards for Radio Commissioners (183)

Appendix B Unit Test Answers (191)

References (205) ^[1]