AA4OO http://hamradioqrp.com shows how to practice morse code (CW) conversations (QSOs) with the QSO Simulator built into the MFJ-493 Super Menu Keyer
Review of the MFJ-493 and user manual available at: the following link
http://www.hamradioqrp.com/2017/01/quirky-keyer-mfj-493.html
