I want to use software timelab（http://www.miles.io/timelab/readme.htm） and HP3132a to test 2 rubidium 10MHz ADEV, I don't know how to use TI mode (time interval), please help me how to operate. I have 2 10MHz channels, 1 and 2, software Acquire---HP 53131A/53132A/53181A---start measurement, but test ADEV is wrong. The curves of each measurement vary greatly. wei