cac4f9b2__for_Morse_Code__CW____3_28_97_Q_Signals_for_Morse_Code__CW__Used_as_a_Question
[Q Signal] QSW [Used as a Reply] I am going to send on this frequency ( or on ...khz (or ...Mhz)). [Used as a Question] 
Will you send on this frequency ( or on ...khz (or ...Mhz))?