The author drills a 3/4-inch-diameter hole (big enough for a maximum of two cables) through the plates and into a joist bay.
A spooler mounted on a wall stud keeps the cable straight and flat as it comes off the roll.
Cable often comes in large spools, and can be dispensed directly from the spool mounted on an axle between two factory-made brackets.
Taking care to keep the cable flat with no twists, the author feeds a length of cable through a joist bay.
To keep the cable flat and without a twist, the author makes a large gentle loop in the cable as he feeds it through the hole drilled in the plates.