The Radio Arc is one of the brightest systems of non-thermal filaments ( NTFs ) in the Galactic Center , located near several prominent HII regions ( Sickle and Pistol ) and the Quintuplet stellar cluster . We present observations of the Arc NTFs using the S- , C- , and X-bands of the Very Large Array interferometer . Our images of total intensity reveal large-scale helical features that surround the Arc NTFs , very narrow sub-filamentation , and compact sources along the NTFs . The distribution of polarized intensity is confined to a relatively small area along the NTFs . There are elongated polarized structures that appear to lack total intensity counterparts . We detect a range of rotation measure values from -1000 to -5800 rad m ^ { -2 } , likely caused by external Faraday rotation along the line of sight . After correcting for Faraday rotation , the intrinsic magnetic field orientation is found to generally trace the extent of the NTFs . However , the intrinsic magnetic field in several regions of the Arc NTFs shows an ordered pattern that is rotated with respect to the extent of the NTFs . We suggest this changing pattern may be caused by an additional magnetized source along the line of sight , so that we observe two field systems superposed in our observations . We suggest that the large scale helical segments near the Radio Arc could be components of such a source causing these changes in intrinsic magnetic field , and some variations in the polarization and rotation measure values along the NTFs .