mr_byte31
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Hi All,
I checked some FM circuits over internet and all seems to miss the band pass filter at the last stage.
This make circuit transmits on all radio channel which is not something nice from my point of view
This circuit operates at 27 MHz and you can see the frequency domain and harmonics on the side of the middle peak
I was thinking about adding some filtration process before the antenna.
I only found a circuit that has filtration process at the end :
I would need to modify the L and C values so I can use it in the FM ranges (88-108 MHz)
would this idea work or i need more filteration stages?
I checked some FM circuits over internet and all seems to miss the band pass filter at the last stage.
This make circuit transmits on all radio channel which is not something nice from my point of view
This circuit operates at 27 MHz and you can see the frequency domain and harmonics on the side of the middle peak
I was thinking about adding some filtration process before the antenna.
I only found a circuit that has filtration process at the end :
I would need to modify the L and C values so I can use it in the FM ranges (88-108 MHz)
would this idea work or i need more filteration stages?