I need to boost the sensitivity of a circuit that uses a .22uf capacitor as antenna in a system that is detecting very high (between 700-950 mhz) frequencies. I am using a BC548 Transistor. Here is the video - https://www.youtube.com/watch?v=RwfgJM9719s
If I were to get the best quality transistors and capacitors would this make a noticeable difference? If I was to add an extra strip of wire to the circuit as an additional antenna would this make a difference? Do you have any other suggestions? Perhaps slightly varying the transistor??
I have looked at this website https://www.aktuellum.com/mobile/circuits/receiving/ but I cannot do the math required (I tried), any general rules of thumbs to go by?