However, further amplification of the signal is needed in order to transmit it to longer distances.
Also, achieving filter paramters are easier at lower frequency than otherwise.
" You're trying to build a system.
But input is first modulated to Intermediate frequency IF which is 38.
The conventional method of amplitude modulation provides simple demodulation at the receiver end.
I couldn't find any straight forward example of such processing, so maybe I'm understanding SSB demodulation wrongly.