Long Range Radio Transmitter Circuit. Lora is short for long range radio. It has a very stable oscillator because you use lm7809 stabilizer which is a 9v stabilized power supply for t1 transistor and for frequency adjustment that can be achieved by using the 10k linear potentiometer.
There are various different types of fm transmitters circuits available in on the different online websites. Designed primarily for m2m and iot applications it won t send data fast but it will send it far up to 2km. Long range fm transmitter presented here is a long range fm transmitter.
Long range fm transmitter this is very stable harmonic free long range fm transmitter circuit which can be used for fm frequencies between 88 and 108 mhz.
It has a very stable oscillator because you use lm7809 stabilizer which is a 9v stabilized power supply for t1 transistor and for frequency adjustment that can be achieved by using the 10k linear potentiometer. It includes 3 blocks. The circuit enables transmiting music signals to fm band with frequencies from 88 mhz to 108 mhz. This is very stable harmonic free long range fm transmitter circuit which can be used for fm frequencies between 88 and 108 mhz.
