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Topic: Basic Wireless transmission from scratch (Read 253 times) previous topic - next topic

russellz

In AM/FM systems, we use a carrier to make the signal propagate as EM waves by feeding the antenna with a harmonic signal.

That's right and for digital transmission you stil need a carrier (RF sine wave signal) which is modulated by one of many different means, AM, FM, PSK, QAM, etc.  As Paul said, you need to first understand what radio is.  You could use one of the many ready made modules but it would help to do a little study.

Russell.
Retired after 40 years as a chartered engineer working mostly with RF and analogue electronics.

Paul__B

As Paul said, you need to first understand what radio is.  You could use one of the many ready made modules but it would help to do a little study.
Yes, it is not a matter at this stage, of asking questions.

You need to study what Radio is, and any remaining questions you have after you understand the concept will make sense, rather than simply spouting random technical terms!  :smiley-eek:

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