Trim the steak of any excess fat, place in a 1-gallon plastic zip-top bag, and place it in the freezer for 1 to 2 hours in order to firm up. This makes the meat much easier to slice.
Remove steak from the freezer and thinly slice, with the grain, into long strips.
Place the strips of meat, along with all of the remaining ingredients, in the zip-top bag and move around to evenly distribute all of the ingredients. Put the bag into the refrigerator for 3 to 6 hours.
Remove the meat from the marinade and pat dry. Evenly distribute the strips of meat on 3 of the air filters, laying them in the grooves and then stacking the filters on top of one another. Top these with 1 empty filter. Next, lay the box fan on its side and lay the filters on top of it. Strap the filters to the fan with 2 bungee cords. Stand the fan upright, plug it in, and set it to medium.
Allow the meat to dry for 8 to 12 hours. If using a commercial dehydrator, follow the manufacturer's directions.
Once dry, store in an airtight container in a cool, dry place for up to 3 months.