Hugh wrote: > Would welcome feedback on sensible/cautious first steps with the unit - initial need, if possible, is a "simple" go/no go/does it power on ? You may find the information on this page helpful: <http://www.ko4bb.com/doku2015/doku.php?id=precision_timing:how_to_check_an_hp5061a_cesium_standard> Best regards, Charles