[Dxbase] LoTW and PSK63 Mode

[Sanford Ardern]

   This is no biggie - but- I worked RV6YZ/6 on PSK63 a couple nights ago.
DXB2006 logs it as PSK63F but an ADIF Export to LoTW's TQ8 format refuses to
recognize it as a legitimate mode - even if I edit out the 'F' in PSK63F in
ADIF.   LoTW does show PSK63 as a mode supported by LoTW.  Does anyone know
why LoTW won't accept it?   I finally changed the mode to BPSK in DXB2006
and LoTW's TQ8 file accepted it.
     Like I said - no biggie but I am curious. ??
Any ideas?
      73    Sandy     W4DUP