Here is the full list of all 11 Transmissions: Element 120 achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Complete chapter 4.
Reunite two little gnomes.
Find all journals.
Find and decode all qr codes.
Smash two striders with shipping containers.
Complete chapter 3.
Complete chapter 2.
Find a way to get the magnum revolver.
Cut a zombie in half with a large object.
Use a special weapon to gravity jump.
Complete chapter 1.