= NOW 5 WPM = TEXT IS FROM DECEMBER 2020 QST PAGE 34 = THE 25 MHZ CRYSTAL ON THE SI5351 BREAKOUT BOARD IS QUITE ACCURATE, BUT IF ADJUSTMENT IS NEEDED, IT IS EASY ENOUGH TO COMPENSATE FOR THIS IN THE ARDUINO CODE. USING A FREQUENCY COUNTER OR EXTERNAL RECEIVER, DETERMINE < QST DE W1AW = THE FREQUENCY OFFSET FROM THE DISPLAYED VALUE ON THE OLED. THIS OFFSET IS THEN SUBTRACTED FROM THE DESIRED OPERATING FREQUENCY PRIOR TO SETTING THE = END OF 5 WPM TEXT = QST DE W1AW <