I have 1992-2006 free tv with many different amps and antennas.
Adding an amp is good bad or indifferent. Adding a better antenna is good bad or indifferent.
There is a lot to be said and done in the ability to improve or not improve earnings.
First off your surrounding partners are huge for making profit.
So buying 400 dollar amps could be stupid or not stupid.
this company has a wide choice
this one is most likely to strong +27db
and too much noise. 3.5 db
it covers 40 to 960 MHz which is okay
https://www.rflambda.com/pdf/lownoiseamplifier/R04M96MSA.pdfI need to look more as I no longer have the contacts for these that I did in 1992-2006