The mark consists of a left situated rectangular white box with a black border, and a horizontal line extending from the left side of said box, and thereafter a right angled vertical line segment from the left end of said horizontal line, and at the top of said vertical segment line there is a left upward 45 degree line segment, and a right upward 45 degree line segment, and a horizontal line segment connecting the top end of said left and right upward horizontal forming a downward triangle, and whereby said triangle has an internal vertical line segment from the base to the apex of said downward triangle, and located at the base of said downward triangle is a dimensional progression of four semi-oval lines that touch the base of said downward triangle, and is visually utilized to indicate electromagnetic wave radiation from a radio antenna comprised of the afore described horizontal and vertical line segments. Within said rectangular box are the black capitalized letters "ISM" in stencil font and to the right inline of said rectangular box are the stencil font black capitalized letters comprising the word "ENIGMA" and whereby the word "ENIGMA" has a white downward 9 degree angular contiguous line space passing through each and every letter of said word "ENIGMA".