having thought of a way to make our reciever , we started looking for the feasibility of our idea. we saw a video of 1420 MHz reciever.
https://www.youtube.com/watch?v=934_teo14Ik
https://www.youtube.com/watch?v=fsGRM024jRc
seeing this video we were assured that our idea was somewhat correct. However, there was a problem with the amplifier, the noise that the circuitry produces will add to the signal even if external noise is filtered. The internal noise may depend on the thermal conditions and the circuit design. we discussed about this with our seniors. There was two ways left, either we buy a low noise amplifier or discuss it with some electronics proffesor. However , this is a part of some modifications , we had planned.our basic design is ready and we are prepared to work as the components arrive.