What I mean by long range is that it has a rf amplifier to go about 1k distanceWhat is your definition of "long range"?
sooo audio guru what ur saying is that my antenna is too close to my tuning cap that it'll be hard to get the right frequency?The FM transmitter circuit is so simple that the frequency changes as the battery voltage runs down. The frequency also changes if something moves toward or away from the antenna since it is connected directly to the tuned LC circuit (the capacitance changes).
The circuit does not power the microphone so a normal electret mic will not work.
If something moves toward or away from the antenna then the capacitance changes at the antenna. The antenna is directly connected to the tuned LC so the frequency changes.sooo audio guru what ur saying is that my antenna is too close to my tuning cap that it'll be hard to get the right frequency?
Yes.What if adding a RF amplifier second transistor and connecting the antenna to the RF amplifier section??
C4 sets the radio frequency and C5 is peaked for maximum output power.Here I found a circuit with an rf amplifier.
I get that first transistor is the rf oscillator then it goes in to the rf amplifier.
Am I suppose to make it same value for (C5,L2) equal to my oscillator (C4, L1) to get my maximum output??
by Jake Hertz
by Duane Benson
by Aaron Carman
by Jake Hertz