ARRL W1AW Bulletin For 18 April 2011

Experimenting with digital modes is always fun & exciting! For this article today, Digital Master 780 was used to copy the W1AW CW (Morse Code) bulletin from 0330Z to 0350Z. Given the poor propagation, Digital Master really did an outstanding job!

The W1AW bulletin was copied on 3581.10Khz. Note the mistakes made by Digital Master 780 were really not horrible overall.  Clearly, if you are going to use software to copy ANY digital mode, the software will not always copy everything 100%, but DO notice that as the bulletin went on in duration, the copy got better.

N E W GROUP ON WEDNESDAY* APRIL 13, AND YET ANOTHER ON APR* 14. = PA EDICTED SOLAR FLUX VA*UES FROM NMEAA/USIEF FOR THE NEAR IIRM HAVE INCREASID SINCE THE FXRECAST IN THE ARRL LETTER O 5SHURSDAY. PREDICTED SOL TR FLUX IS 125 AND 128 OR APRIL 15 AND 16, 13Ø ON APRIL 17 TO 19, HND WM35 ON APRIL 2*E AND 21 AN5 115 ON APRIL 22 AND 23. PLANETARY A SNDEX FOR THE SAME PERIOD IS PREDI*TED TO BE 5 ON APRI L 15 TO 17, B AND W * EE EI II**TEETEL * EI MAK E I E EWI EE A* E**I TTNT E E I*I * TI
I I SIJE I I ITKETI_TTT TT TT D 1 ON , AND 5 ON APRIL 2Ø TO E7. * ST DE W1AW = GEOPHYSICA5 INSTIHUTE PRRGUE PREDICTS QUIET GEOMAGNETIC C3NDITIONS APRIL 15 TO 17, QUIET TO UNSETTLED APRIL 18, ACTIVE CONDITIONS APRIL *9, AND UNSETTLED CONDITIONS APRIL 2Ø AND 21. = ON APRIL 12 A SOLAR WIND STREAM HIT EARTH, CAUSING AURORA TO BE VISIBLE ACROSS THE NORTHERN TIER STATES IN THE U.S. THE HIGH LATITUDE COLLEGE A INDEX HIT 39, AND PLANETARY A INDEX WAS 23. THE NEXT PERIOD OF HIGHER DIEOMAGNETIC ACTIVITY PREDICTED BY NOAA/USAF IS APRIL 28 AND 29, WITH A PLANETARY A INDIX OF 12 AND 15. * QST DE W1AW = JON JONES, NØJK OF WICHITA, KANSAS REPORTS, I HEARD OA4TT IN PERU ON 5ØR135 MHZ ON APRIL 4 AT 2Ø2ØZ. KN5 W IN LA HAD OA4TT IN STRONG, WAS WEAB F6IR ME. PERHAPS DIRECT F2 TO THE GUL CG TST THEN WEAK ES ON TO KSE BR5* IS ON MY GREAT CIRBLE BEARING TO PERU. = 3EFF HARTLEY, N8II OF SHEPHERDSTOWN, WEST VIRGINIA REPORTS, T5ERE HAVE BEEN PLENTY OF *CENT PROPAGATION SURPRISES. LAST FRIDAY, APRIL 8, K3SWZ NEAR HARRISBURG, PA REPORTED T ME WEASKING T V9RG ON 1Ø METER SSB AT 2348Z* SUNSET HERE LAS 2343Z. I DIDNT FIND ROBIN, D UT DID WORVEFILST VKNI OF CYCLE 24 ON 1Ø METERS, VK6DU ON SSB AROUND 235ØZ. THERE WERE SEVERAL OTHER EASTERN VKS AND ZLS WITH GOOD SIGNALS ON 1Ø AROUND THE SAME TIME. * QST DE W1AW = I HAVE WORKED 5N7M AROUND 23ØØZ ON 1Ø CW [353.0° 10,813.5km] AND HE IS FREQUENTLY ON 1Ø AND *2 METERS VERY LATE FOR HIM RIGHT AROUND THE BOTTOM TAIS THE BI E DS I HEARD HIM AS LATE AS E2Ø4Z WITH A GOOD SIGIAL 7N 12 METERS LAST NIGHT, THEN HE WENT DOWN TO THE BOTEOM OF 15 CW [312.7° 18,880.1km] AROUND Ø1ØØZT 5M2TT, IN LIBERIA, WAS RUNNING A BIG PILE UP ON 17 METERS SI B AROUT D MOZAØØZ AND WAS WORKED N MONDAY AROUND 233Ø6 TAN BMITH * TE T E METEFS PHXNE AND CW. I5 HAS BEEN REGULARLN T OSIEN TD A IN OUR EVENINGS THIS WEITT AND WSS STILL OPES AT Ø11ØZ AEAST NIGHT. EARLIER IN THE WEEK I HAD A RUN OF JAS ON 15 CW [353.6° 10,260.9km] AROUND 233ØZ WITH SIGNALS U G TO S9, NOT AN EVERY DAY EVENT FOR THIS QTH WITH ABOUT THE POOREST PROP TO JA IN THE USA, WITH A BEAM HEADE NG IS 33Ø. * QST DE W1AW = TO JAPAN, JEFF IS M 5ER 6,8ØØ MILES. FROM K7RA IN SEATTLE IT IS ABOUT 4,9ØØ MILES AT 3ØØ DEGREES. = IF YOU WOULD LIKE TO MAKE A COMMENT OR HAVE A TIAI FOR OUR READERS, EMAIL THE AUTHOR AT, K7RA AT ARRL.NET. = FOR MORE INFORMATION CONCERNING RADIO PROPAGATION, SEE THE ARRL TECHNICAL INFORMATION SERVICE WEB PAGE. A DETAILED EXPLANATION OF THE NUMBERS USED IN THIS BULLETIN IS ALSO AVAILABLE ON THIS SITE. AN ARCHIVE OF PAST EPROPAGATION BULLETINS IS ALSO AVAILABLE. = MONTHLY PROPAGATION CHARIS BETWEEN FOUR USA REGIONS AND TWELVE OVERSEAS LOCATIONS CAN E FOUND ON THE 41AW WEB SITE. * QST DE W1AW

Hopefully the Shortwave America readers and others curious about radio have enjoyed this piece as much as Shortwave America enjoyed bringing it to you.