mstechca
New Member
It seems that I have made the basic wiring required to generate an FM radio signal. Along the way, I have picked up modem signals, and I can barely pick up a station but I couldn't hear (from the announcer) what frequency it was on. I have picked up an FM station before using the same circuit.
The only parts that create difficulty are resistors, and capacitors.
An astable multivibrator (made with two transistors) is in my FM radio. This acts as the radio oscillator. What should the frequency of it be? Also, I have a tank circuit (capacitor and inductor in parallel) which determines (I think the input) frequency.
The first thing I want to accomplish is to have an FM radio tuned to 102.9Mhz. I need to know what frequency I should set the oscillator and the tank circuit so that I can get this frequency.
My radio does not use a mixer.
The only parts that create difficulty are resistors, and capacitors.
An astable multivibrator (made with two transistors) is in my FM radio. This acts as the radio oscillator. What should the frequency of it be? Also, I have a tank circuit (capacitor and inductor in parallel) which determines (I think the input) frequency.
The first thing I want to accomplish is to have an FM radio tuned to 102.9Mhz. I need to know what frequency I should set the oscillator and the tank circuit so that I can get this frequency.
My radio does not use a mixer.