Where should a shock-absorbing lanyard be attached to a tower when working above ground?
Why A shock-absorbing lanyard limits how far you fall before the energy absorber deploys, and free fall distance depends on how high the tower-side anchor is relative to your harness attachment. Anchoring above the climber's head keeps the free fall short, so the deceleration forces stay within what the harness and your body can tolerate, and it keeps you upright rather than letting you flip. Anchoring at or below your level lets you fall the full length of the lanyard plus that offset before anything starts to slow you down.
Watch out The belt or harness end is where the lanyard clips to you, not the tower anchor, so that choice confuses the two ends; guy wires are not rated structural anchor points for fall arrest and can also be climbed past or slip.
Anchor high: tie off above your head so there is almost nothing to fall.