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KD5066 Assignment - 2023/24

Analog Communications

Produce a report describing each section. Include equations, schematics and results

where necessary.

Part A: Analog Communications Review

Modulation methods within Analog Communications have evolved

considerably over the last century. Produce a report outlining the key analog

modulation methods. Within your report discuss each of the major techniques.

You are required to describe the operation of each technique, how to

generate each technique and the major advantages and disadvantage of each

technique.

(As a guideline this should be approximately 1000 words)

Part B: Single Audio Signal Transmission

An audio signal described below is to be transmitted using a radio signal.

V=2cos (27*10³) t

Propose 3 different ways to do this. Include choice of frequency, carrier

frequency, bandwidth, modulation index, etc. Compare the advantages and

disadvantages of each type and suggest the most appropriate method -

justify all decisions.

Part C: Multiple Audio Signal Wireless Transmission

Three audio signals described below is to be transmitted on the same

wireless channel.

Signal 1 has a frequency response from 2KHz to 4KHz

Signal 2 has a frequency response from 2KHz to 4KHz

Signal 3 has a frequency response from 4KHz to 8KHz

Design a system to achieve this. You should include the frequency response

at each stage. You should also justify all key decisions.

Fig: 1