‰  NOW 35 WPM  ‰
OUR FIRST TEST WAS PSK31.  IT REQUIRED A DELICATE BALANCING ACT TO ADJUST
THE COMPUTER AUDIO OUTPUT AND THE FTDX9000DS PKT GAIN MENU ITEM 64 TO
GENERATE THE HIGHEST OUTPUT WITHOUT DISTORTION.  WE FOUND THAT IT WAS EASY
TO OVERDRIVE THE TRANSCEIVER AND CREATE A TERRIBLY DISTORTED SIGNAL.
FORTUNATELY, YOU CAN MONITOR YOUR OUTPUT WAVEFORM ON THE FTDX9000DS SCREEN
AND SEE THE DISTORTION WITH YOUR OWN EYES.  WITH THE TRANSMIT SIDE SET UP,
WE SETTLED IN FOR A PSK31 SESSION WITH MIXW SOFTWARE ON A LAPTOP RUNNING
WINDOWS XP.  THE SENSITIVITY AND DYNAMIC RANGE CHARACTERISTICS OF THE
FTDX9000D BECAME EVIDENT AS WE EASILY COPIED SOME EXTREMELY WEAK PSK31
SIGNALS.  DURING THE SAME SESSION, WE MANAGED TO FIND A COUPLE OF MFSK16
CONVERSATIONS AND EVEN A HELLSCHREIBER QSO.  THE PERFORMANCE WITH EACH MODE
WAS FLAWLESS.  THE NEXT HF DIGITAL TEST WAS WITH RTTY, PUTTING W1HQ, THE
ARRL LABORATORY STATION, ON THE AIR DURING THE ALESSANDRO VOLTA RTTY
CONTEST.  STILL USING THE PACKET JACK TO OPERATE AFSK, WE WERE ABLE TO
GENERATE 200 W OF UNDISTORTED RTTY POWER.  THE FTDX9000D MANUAL CAUTIONS
AGAINST USING 200 W WITH A 100 DUTY CYCLE MODE SUCH AS RTTY UNLESS YOU
‰  FROM PAGE 103  ‰
DF3IS/328 DF3SV/335 DJ2SL/344 DJ2YI/373 DJ4PT/351 DJ5IH/346 DJ6OI/326
DL6KG/355 DL7EN/373 DL9MKA/327 DL9RCF/326 DL9YC/345 EA5KY/327 EA7TV/333
F5DBT/330 F5OIU/326 F6IMB/326 F8GB/341 G3BBR/332 G3OAG/334 G4SOF/332
‰  END OF 35 WPM TEXT  ‰  QST DE W1AW  ƒ