Need Help regarding RF Transmitter

Thread Starter

coolbird457

Joined Apr 24, 2009
4
i am working on a project named wireless mic...

in first stage i got a simple common emitter to get an amplified audio signal.

now i need 100MHz radio signal to superimpose the amplified audio signal
upon it.

so plz help me how can i design a Transmitter circuit with antenna...

i 'd be grateful.
 

Thread Starter

coolbird457

Joined Apr 24, 2009
4
hello,

i need frquency modulation ...


basically its a wirless mic. for which the only legal frequency is 27 MHz

here.

can u plz tell me how can i get it or cite some good site for circuit samples (of 27 MHz)?
 

PRS

Joined Aug 24, 2008
989
I know of no samples except someone -- from my bad memory -- posted a circuit on this forum of an rf transmitter/receiver using a capacitor microphone. It was really simple, using the fact that a capacitor mic creates a voltage proportional to the frequency. Look in the archives; use the search thing.

Check out what 007 said. I think it's just what you want.
 
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