am modulation

Thread Starter

xw0927

Joined Dec 19, 2010
114
doing a am modulation/demolution,Can anyone give me some idea,because the basically i had draw the schematics,how i can connect it with the speaker and microphone?Trying to do some modification ,then my circuit can work special a bits.View attachment dekstop.pdf
 

Thread Starter

xw0927

Joined Dec 19, 2010
114
just try to make some device include modulator and demodulator like radio,isn't got any device can do beside radio?
 

crutschow

Joined Mar 14, 2008
34,285
A modulator requires a non-linear element such as a multiplier. You cannot do modulation with a linear circuit. Google "modulator" and "demodulator" for more info.
 
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