The construction consists of three pairs of microlasers emitting coherent radio waves with a wavelength of approximately one light-second.
These microlasers impact the location of the poin-source HE node in a way as to cancel one another out completely at that location only: the node is thereby kept there and is not allowed to wander.
The node is triggered by the microlasers who switch simultaneously to a wavelength of approximately one angstrom, maintain that frequency for a single pulse and then disconnect.
At that moment, the field's power is turned on, and electrical power is fed into the field from any source provides the necessary energy for its maintenance.
- Dune Encyclopedia, entry HOLTZMAN EFFECT