[SOLVED] Oscillators for FM radio

[Chiranka K]

I was building a radio receiver for FM waves (87.5-108MHz), I want to build every block on my own (oscillators, mixers, demodulators) and then put them together. I was designing a oscillator, and came across 2 options
1. Colpitts

2. Clapp

I had a few doubts
1. Which of these two performs better?
2. What range of frequency should my LO be able to give?
3. What IF frequency to use (I did my research and most of them show 10.7Mhz).
4. while running a simulation of this on LtSpice, what component should I use for RFC, and what BJT should I use?

Finally, do u think I should be building a receiver for AM or for FM as my first radio receiver?

Thank you.
Chiranka K

 

[Chiranka K]

There are different configurations of Colpitts & Clapp.

Maybe how the transistor is operated (com. emitter or collector or base).

Maybe whether the power supply is contained within the resonating loop.

Maybe whether 0V ground is connected to the node between the two caps.

Maybe whether the LCC tank develops high Amperes or low, or whether supply voltage is a few volts or high.

Maybe whether output is taken from the LCC tank or from a node at the transistor.

Thanks Brad, that clears my doubts.