Unwanted radiation is reduced in a high-frequency signal transmission line that includes a ground conductor provided with an opening that overlaps a signal line. The transform coefficient data may include exponent data and mantissa data. The management station may interact with the modified user interface display and evoke the additional functions through the use of keyboard, mouse or any suitable user interface input means. Alternately, the low-light processing algorithm, prior to compressing, filters noise from the received digital image information.