Electrical and Electronics: Module 27

Module 27A: Communications, Radio (Optional)

Suggested time: 10 - 15 hours

Level: Intermediate

Prerequisite: Module 26B

Foundational Objectives

To use appropriate terminology for electricity or electronics in context.
To become knowledgeable of the various principles and characteristics of electricity and electronics.

Common Essential Learnings Foundational Objectives

To describe and compare AM and FM systems of communications. (COM)
To use technological "know how" and tools to extend human capabilities. (TL)
To strengthen students. understanding by applying knowledge of numbers and their interrelationships. (NUM)

Learning Objectives	Notes
AM COMMUNICATIONS
27.1 To draw a block diagram of an AM transmitter. (COM)	Explain to students and discuss the purpose of each section of a transmitter.
27.2 To draw a block diagram of an AM receiver. (COM)	Discuss the action of an AM waveform and the action of the receiver.
27.3 To list the characteristics of the AM waveform.	Investigate and list the characteristics of the wave. Have students identify advantages and disadvantages of AM communication.

FM COMMUNICATIONS

27.4 To draw a block diagram of an FM transmitter. (COM)	Discuss the purpose of each section.
27.5 To draw a block diagram of an FM receiver.	Provide an explanation of the purpose of each section.
27.6 To list the characteristics of the FM waveform.	Discuss the action of an FM waveform.
27.7 To list two advantages and two disadvantages of FM communication. (COM, CCT)	Have the students investigate the characteristics of the wave. Determine the advantages and disadvantages of FM communication.

Module 27B: Communications, Antennas (Optional)

Suggested time: 10 - 15 hours

Level: Advanced

Prerequisite: Module 27A

ANTENNAS

Learning Objectives	Notes
27.8 To list two common types of antennas used for transmission and reception. .	Provide pictures or samples of antennas.
27.9 To draw the radiation pattern for a half-wave dipole.	Use illustrations of transmission patterns available in communications manuals.
27.10 To calculate the length of a half-wave dipole. (NUM)	Provide a desired frequency.
27.11 To explain the propagation of a radio wave. (COM, CCT)	Provide students with an explanation of the phenomenon of wave propagation.

Module 27C: Communications, Fibre Optics (Optional)

Suggested time: 10 - 15 hours

Level: Advanced

Prerequisite: Module 27B

Learning Objectives

Notes

FIBRE OPTIC PRINCIPLES

27.12 To describe the historical development of fibre optics. (COM) Students will research and write a report on the history of the industry. Some pioneering applications of fibre optic applications occurred in Saskatchewan

27.13 To describe the physical characteristics of bundled and single fibres. (COM)

27.14 To describe how light is propagated in a fibre optic conductor. (COM)
Provide students with data sheets describing the characteristics of fibre optic cables.

FIBRE OPTIC CHARACTERISTICS

27.15 To list four sources of light for use in fibre optics.

27.16 To describe the types of losses associated with fibre optics.
Discuss losses associated with fibre optic material, light dispersion- absorption, scattering and bending.

Learning Objectives	Notes
FIBRE OPTIC PRINCIPLES
27.12 To describe the historical development of fibre optics. (COM)	Students will research and write a report on the history of the industry. Some pioneering applications of fibre optic applications occurred in Saskatchewan
27.13 To describe the physical characteristics of bundled and single fibres. (COM)
27.14 To describe how light is propagated in a fibre optic conductor. (COM)	Provide students with data sheets describing the characteristics of fibre optic cables.
FIBRE OPTIC CHARACTERISTICS
27.15 To list four sources of light for use in fibre optics.
27.16 To describe the types of losses associated with fibre optics.	Discuss losses associated with fibre optic material, light dispersion- absorption, scattering and bending.