The RF mixer section is a pretty easy section with only 4 through hole parts and 2 SMD. Nothing terribly complicated here.
If you’re doing the build over an extended period of time like I am and following the WB5RVZ build instructions, make sure to double check the band selection before each build session.
Two capacitors and two resistors (band specific) are added to the top of the board.
On the bottom of the board, the only thing to watch out for is the orientation of the FST3253 IC.
RX op amp stage is next.