MARKHAM – Amid industry rumors that struggling Cygnal Technologies is planning a major announcement before the end of the year, John Milne, president and general manager of cable tech supplier White Radio, Cygnal's best-performing division, has left the company to pursue other interests."I would like to take this opportunity to thank John Milne for his contributions to the company; he has been a valued member of our team, and we wish him the best of luck in his future endeavors," said Jos Wintermans, president and CEO, in a press release. "We have established good momentum within our White Radio business,...