Can quantum physics explain the workings of transmitters and receivers?

[ghost313]

Hello :)
So my question are:
-how to build a transmitter and a receiver?
-how do they actually work?(in detail,microscopic and macroscopic)
-which scientist was the one who invented this tech and if possible,are there any papers published that can be red today?
Thank you for your time.

 

[tech99]

Hello :)
So my question are:
-how to build a transmitter and a receiver?
-how do they actually work?(in detail,microscopic and macroscopic)
-which scientist was the one who invented this tech and if possible,are there any papers published that can be red today?
Thank you for your time.

Heinrich Hertz first did this using a spark gap at the centre of a dipole antenna. He used a very small spark gap in a tuned loop as his receiver. A book is available "Researches on the Propagation of Electric Action with Finite Velocity through Space", by Heinrich Hertz (Cornell University reprint). Of course, techniques quickly evolved for the next 122 years, so you can choose. Maybe you can use a signal generator and a diode detector with an oscilloscope.

 

[tech99]

Heinrich Hertz first did this using a spark gap at the centre of a dipole antenna. He used a very small spark gap in a tuned loop as his receiver. A book is available "Researches on the Propagation of Electric Action with Finite Velocity through Space", by Heinrich Hertz (Cornell University reprint). Of course, techniques quickly evolved for the next 122 years, so you can choose. Maybe you can use a signal generator and a diode detector with an oscilloscope.

(Professor John Hughes demonstrated reception using a mobile receiver in London in 1879, but it was rejected by members of the Royal Society because at that time they thought it was induction rather than radiation).

 

[davenn]

Hello :)
So my question are:
-how to build a transmitter and a receiver?
-how do they actually work?(in detail,microscopic and macroscopic)
-which scientist was the one who invented this tech and if possible,are there any papers published that can be red today?
Thank you for your time.

google is your friend for basic questions like that

do some searching, there's masses of info, come back with more specific questions on things you may not understand

we at PF will help you along, but we won't do your research study for you
you need to learn to make an effort for a startcheers
Dave

 

[jtbell]

A very simple type of radio receiver:

https://en.wikipedia.org/wiki/Crystal_radio

 

[Vanadium 50]

All I can say is that I hope the OP is talking about radio.

 

[ghost313]

google is your friend for basic questions like that

do some searching, there's masses of info, come back with more specific questions on things you may not understand

we at PF will help you along, but we won't do your research study for you
you need to learn to make an effort for a startcheers
Dave

I guess I did not put my questions rigth,when I said microscopic level I meant from the point of quantum physics,how does it really work,not some science 200 years agoo..hahah there is that...also for the scientist I meant for the new one who discovered it from the microscopic world,there is not much on the internet about that. Thanks :)

 

[ghost313]

(Professor John Hughes demonstrated reception using a mobile receiver in London in 1879, but it was rejected by members of the Royal Society because at that time they thought it was induction rather than radiation).

Thank you,answered most of my questions,helpful :)

 

[ghost313]

A very simple type of radio receiver:

https://en.wikipedia.org/wiki/Crystal_radio

Useful,looks easy to make than those RF,thanks mate :)

 

[Dale]

I meant from the point of quantum physics,how does it really work,not some science 200 years ago

Radio is classical. I don't think that it makes sense to think about it on a quantum level. It would be like trying to understand an inclined plane using general relativity.

There are some quantum phenomena that cause RF radiation, but those are not used for transmission and reception.