The mark consists of the letters "B", "N", "N" in white, each inscribed respectively within a red block, a medium blue block and a green block, which blocks increase in height from left to right, with a solid red rectangle floating above the red block having the letter "B" inscribed in white therewithin, with two solid medium blue rectangles floating above the medium blue block having the letter "N" inscribed in white therewithin and with a solid green rectangle floating above the green block having the letter "N" inscribed in white therewithin, where the different height blocks and floating rectangles synergistically suggest the fluctuation of a transmission signal. The top edge of a bottom rectangle in dark blue outline having rounded corners touches at a position along the top edge that is intermediate its left and right rounded corners the bottom edges of the red, medium blue and green blocks having the letters "B", "N", "N" respectively inscribed in white therewithin, where the words "Boston Community Radio", in black, are inscribed on a white background within and at the top of the bottom rectangle in dark blue outline, where the call letters "WBCA", in black, are inscribed on a background that fades from light blue to white within and in the middle portion of the bottom rectangle in dark blue outline, and where the station frequency designation "102.9 FM", in white, is inscribed on a medium blue background within and at the bottom portion of the bottom rectangle in dark blue outline.