=  NOW 5 WPM  =  TEXT IS FROM SEPTEMBER 2022 QST PAGE 33  =

PRECISION CALIBRATION THE SI5351 CLOCK GENERATOR BREAKOUT BOARD, THE HEART
OF THE ARDUINO CONTROLLED SYNTHESIZER FOR THE TRANSMITTER, UTILIZES A
PRECISION 50 PPM, 25 MHZ REFERENCE CRYSTAL.  WHILE QUITE ACCURATE, WITHOUT
<  QST DE W1AW  =
COMPENSATION, FREQUENCY ERRORS OF SEVERAL HUNDRED HERTZ ARE NOTED AFTER
PHASE LOCKED LOOP PLL MULTIPLICATIONS.  USING AN ACCURATE FREQUENCY COUNTER
=  END OF 5 WPM TEXT  =  QST DE W1AW  <