‰  NOW 25 WPM  ‰  TEXT IS FROM JANUARY 2016 QST  PAGE 56‰

INITIAL TESTS INCLUDED MEASURING AMPLIFIER POWER OUTPUT AND CHECKING THE
AMPLIFIERS INTERNAL POWER METER AGAINST AN ARRAY SOLUTIONS POWERMASTER PEP
WATTMETER NIST TRACEABLE, SPECIFIED ACCURACY 3.  I ADJUSTED THE DRIVE FOR
AMPLIFIER OUTPUT POWER OF 1200 W PEP USING A PROPERLY SPACED STRING OF
MORSE CODE DITS THIS SHOULD CORRESPOND TO ABOUT A 25 DUTY CYCLE, WHICH IS
SIMILAR TO THE SSB DUTY CYCLE.  THEN I MEASURED THE POWER AFTER KEY DOWN
CONTINUOUS TRANSMISSION FOR 5 SECONDS.  THE ALS 1306 MET ITS 1200 W PEP
SPECIFICATION ON ALL BANDS EXCEPT 6 METERS, THOUGH THERE IS SOME POWER SAG
UNDER KEY DOWN CONDITIONS.  AS WE WENT TO PRESS, AMERITRON INDICATED THAT
THEY ARE REVISING THE INPUT ATTENUATOR BOARD TO SWITCH OUT THE ATTENUATOR
ON 6 METERS.  THIS WILL ALLOW THE AMPLIFIER TO MAKE 1200 W OUTPUT ON THAT
BAND WITH 60 TO 70 W OF DRIVE.  NOTE THE LOW DRIVE NECESSARY TO GET TO THE
US LIMIT OF 200 W OUTPUT ON 30 METERS.  I ALSO FOUND THE ALS 1306 PEAK
‰  END OF 25 WPM TEXT  ‰  QST DE W1AW  ƒ