Dear Joe and all, the iLotus M12M is at the current front line of timing receivers. Less than 40nsec out-of-the-box and <15ns with some effort. http://www.ilotus.com.sg/sites/all/themes/zeropoint/pdf/m12m/M12M%20-%20User%20Guide%20%28Ver%201.0.0%29.pdf 73s Achim, DH2VA 1300163500.0