[Dx4win] How to search for no LoTW Upload date?

[Jim Reisert AD1C]

I want to search my log for the following:

- LoTW == N
- LoTW Upload Date = empty (no date)

How can you search for an empty date in this field?

-- 
Jim Reisert AD1C, <jjreisert at alum.mit.edu>, https://www.ad1c.us