cac4f9b2__for_Morse_Code__CW____3_28_97_Q_Signals_for_Morse_Code__CW__Used_as_a_Question
[Q Signal] QTU [Used as a Reply] My station is open from ___ hours to ___ hours. [Used as a Question] 
What are the hours during which your station is open?
Q SIgnals for Morse Code (CW) - 3/28/97
Used as a Question