When adjusting illumination rounds, what are HOB corrections sent in multiples of?

When adjusting illumination rounds, height of burst (HOB) corrections are typically sent in multiples of 100 meters. This standard allows for significant adjustments that effectively account for the operational range of illumination rounds. It provides a more substantial and manageable means of adjusting the burst height to ensure adequate coverage of the target area, maximizing the effectiveness of the illumination for observing or engaging targets.

Using larger increments like 100 meters also helps to streamline communication and decision-making during operations, as smaller adjustments may be less practical in the context of artillery fire. It is important for operators and FIST members to understand these standards to coordinate fire support effectively, ensuring that the illumination rounds achieve the desired effect over the battlefield.