SOFTWARE FOR RTTY

STILL VERY POPULAR DESPITE ALL THE OTHER NEWER DIGITAL MODES APPEARING. AMATEUR  BAUDOT HAS A SPEED OF 45 BAUD PLUS A SHIFT OF 170 HZ - SOME COMMERCIAL STATIONS ARE STILL USING BAUDOT - WITH A USUAL SPEED OF 50 BAUD - 425 REVERSED SHIFT  - BUT OTHER SPEEDS AND SHIFTS ARE EMPLOYED .THERE ARE  OTHER FORMS OF RTTY I.E SWED-ARQ  POL-ARQ   ETC. DON'T EXPECT TO BE ABLE TO DECIPHER ALL COMMERCIAL TRANSMISSIONS THAT YOU COME ACROSS WITH THESE PROGRAMS.THE PROGRAM FROM HOKA ELECTRONICS  CLAIMS  IT WILL DECODE JUST ABOUT ANYTHING ( WELL THIS MIGHT HAVE BEEN TRUE A FEW YEARS AGO, BUT THERE'S SO MANY ENCRYPTED SIGNALS AROUND THAT I DOUBT ANYTHING AVAILABLE FOR THE HAM MARKET IS GOING TO BE ABLE TO DE-CODE MUCH OF IT AT ALL ) THE ABOVE  SOFTWARE PACKAGES ARE VERY EXPENSIVE, HOKA GOLD CODE 3 CAN BE OBTAINED FROM  WATERS & STANTON.

SOFTWARE FOR SITOR

THE FOLLOWING SOFTWARE WILL ALSO DE-CODE SITOR B / AMTOR. BOTH MSCAN METEO TEXT & seaTTY DECODES BOTH RTTY AND NAVTEX TYPE MESSAGES AND ARE EXTREMELY GOOD.THE WDCODE IS A WINDOWS SOUNDCARD PROGRAM AND DECODES RTTY AND SITOR  WELL.

IF SOME OF THE ABOVE PROGRAMS DON'T SEEM TO WORK, ESPECIALLY PC-HFDL ( IT KEEPS SAYING" CRL FAIL" , EVEN WITH STRONG SIGNALS, TUNED IN CORRECTLY ) AND YOUR SOUND CARD IS BUILT INTO THE COMPUTER MOTHER-BOARD  ( AC97 ) OR IF ITS AN EXTERNAL USB TYPE, OR ITS A CHEAP UN-BRANDED TYPE - THEN CHANGE IT FOR A" CREATIVE SOUND BLASTER LIVE" TYPE AND EVERYTHING SHOULD BE OK.THIS HOLDS FOR MOST SOUNDCARD PROGRAMS THAT ARE PROBLEMATIC.THE EXTERNAL USB SOUNDCARDS  SEEM TO BE PARTICULARLY POOR FOR THESE APPLICATION.

VARIOUS CIRCUITS / SOFTWARE / LINKS

  COMMERCIAL STATIONS STILL USING BAUDOT

  COMMERCIAL STATIONS USING FEC ( SITOR B)

   LISTEN TO RTTY  AND OTHER  SIGNALS

RSGB BULLETINS

               SUNDAYS

              MODE MT63 …..1 KHZ LONG INTERLEAVE