Player base[valheim.fandom.com]

Anything on that page provides a 20 meter (spherical) anti-spawn radius (the 32 meter radius attributed to Wards are for preventing player modifications, anti-spawn is still only 20 meters). Only Wards will produce noise and light when anything in its protection is attacked, so use something else if you'd like to get rid of that effect.

Be warned, however, that those same items are also what are used to determine whether or not you qualify for most raid events to be triggered.