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Any trustable circuit if I want to design a circuit that will demodulate an amplitude moduated(AM) signal ?
Any suggestion schematic ?
Thanks !
Needed for my mini project ^^
Need some guidance here
Thanks ^^
Hey Vicki, i'm doing something similar but demodulating and then sending out through LED's. Want to work together? Let me know.
Btw, crystal radio would be a good choice to start. Siilar to FM i think ...
Sure, but my project should end by mid of May HAHAHA
AM and FM are quite different.
AM is amplitude modulation where the carrier strength is made larger and smaller.
FM is frequency modulation where the carrier frequency is made higher and lower.
What I suggested is for AM only.
AM is amplitude modulation where the carrier strength is made larger and smaller.
FM is frequency modulation where the carrier frequency is made higher and lower.
What I suggested is for AM only.
That's fine. I'm working on a project along those lines at the moment so if you're interested or if you know someone who's interested let me know. I'm up to the part of storing energy into a cap as in like a Li-Ion battery so i can use it for other parts in my project.
Cheers
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The (not your) link was to a simple crystal radio with no varicap diodes in sight.
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That Link wasnt mine !
Something like that with a preamplifier in the output maybe ?
Pretty much same as john's diagram
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Disregard what i sayd about the varicap. Theese are used in FM modulation.
My mistake.
A crystal radio can receive either AM or FM depending on the detector, and you would need different types of antennas for the higher frequencies used by FM.
CDRIVE
Hauling 10' pipe on a Trek Shift3
I think you need an electric guitar to do that
Bob
When you posted this it went right over my head but that was before I was enlightened!
Chris
When you posted this it went right over my head but that was before I was enlightened!
Chris
How am I able to do a AM transmitter and receiver ? My friend will be doing the AM transmitter and I am responsible for AM receiver. Any suggested circuit ?
No microcontroller is allowed
Thanks
Urgent help neded
In the UK the rules about transmitting are very strict but some people do transmit VERY low power to activate old radios.
Google 'pantry radio' , some are valve based and some, more convenient, semiconductor based.
You will need to use a low frequency unless you are an expert so, run on medium wave and use a medium wave receiver. If you wish to build your own receiver I would suggest a TRF.
Google 'pantry radio' , some are valve based and some, more convenient, semiconductor based.
You will need to use a low frequency unless you are an expert so, run on medium wave and use a medium wave receiver. If you wish to build your own receiver I would suggest a TRF.
davenn
Moderator
How am I able to do a AM transmitter and receiver ? My friend will be doing the AM transmitter and I am responsible for AM receiver. Any suggested circuit ?
No microcontroller is allowed
Thanks
Urgent help neded
Look at post #12 Hellastechn gave you the most basic and cheapest AM receiver possible !!
Dave
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