Basic wireless transmitter and receiver for mourse code function
I been request to build a simple wireless transmitter and receiver . i understand some electromagnetic wave , and how a signal can travel through a medium "air". But i really don't have any idea on how to build a simple wireless transmitter and receiver. Can u please provide some information . Thanks and appreciate your help.
You're question is overly simplistic.
You've not provided much information other than they are using CW (morse).
What kind of homework is this ? You would not be asked to build a radio transmitter in a college course without having been taught some basic high school physics and electronics on oscillators and amplifiers.
The Dick Smith Funway 1 electronics book has just such a transmitter and receiver in it.
These books are common in Australia and NZ. They can be hard for somebody not in Australia to acquire. Placing a wanted ad on somewhere like vkham.com is your best chance. (there aren't any on ebay at the moment) It is a very basic beginners electronics books and the article on that circuit has a very good novice explanation of radio waves and radio circuits.
A quick search for "crystal radio" will yield results and a circuit you can build and understand.
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