Bands

Enter the number of bands used to weave the shield.  Shields are woven from an integer number of bands, half of which spiral clockwise along the length of the shield, and half of which spiral counter-clockwise along the length of the shield.  Each band consists of an integer number of parallel wire strands placed side-by-side.  The number of bands, and the space between adjacent bands, determines the weave angle and the optical coverage of the shield

More:

Apertures/m