[K3CAL] W1AW Field Day Broadcast: An interesting take on digital modes

[Eric Christensen]

On Saturday night we received W1AW's Field Day Broadcast via digital modes 
RTTY, PSK-31, and MFSK16.  Since these modes were used sequentially we were 
able to compare each mode, basically using the same ionospheric conditions, to 
see which broadcast was received the best.

Overall, we received nearly-complete versions of the bulletin with each mode.  
The RTTY and PSK-31 versions, however, did contain errors.  The MFSK-16 
version was received error-free.  Obviously, the RTTY text only used uppercase 
characters while the other two modes have a much larger character set and, 
thus, the messages received were in a more eye-pleasing sentence case.

Overall, I'd think I'd much rather receive MFSK-16.  :)  I wish I had timed 
the time it took to receive the messages so I could also provide that 
comparison as well.  I can do some test transmissions later, though, and 
determine speed.

Here's what we received:

      CALLING ALL RADIO AMATEURS.  CALLING ALL RADIO AMATEURSWM

                   THIS IS W1AW IN NEWINGTON, CT.
    V               
       CALLING ALL RADIO AMATEURS.  CALLING ALL RADIO AMATEURS.

                  THIS IS W1AW IN NEWINGTON, CT.

AN OFFICIAL W1AW FIELD DW BULLETIN TRANSMISSION FOLLOWS USING 45.45 BAUD 
BAUDOT, 
FOLLOWED IMMEDIATELY BY PSK31 IN BPSK MODE AND THEN MFSK16.


THIS IS W1AW



ARLX010 FOLLOWS

ARLX010 FOLLOWS

ZCZC AX10
QST DE W1AW  
SPECIAL BULLETIN 10  ARLX010
FROM ARRL HEADQUARTERS  
NEWINGTON CT  JUNE 26, 2015
TO ALL RADIO AMATEURS 

SB SPCL ARL ARLX010
ARLX010;182 W1AW FIELD DAY BULLETIN
AWPQT FUN STARTS AT 1800 UTC SATURDAY FOR YOU AND YOURV CLUB.  SWAP
SKILLS, THOUGHTS OR A STORY ABOUT FDS PAST. K6KPHWILL TRANSMIT
W1AWS THOUGHTS ROM CALIFORNIAWITH CW AND DIGITAL TRANSMISSIONS ON
SATURDAY AT 1430 UTC AND SUNDAY AT 0030, 0130, 1430 AND 1630 UTC.

TRY AN ORIGINAL BRAINSTORM AS YOU FIND YOUR LIMIT OR SURPASS WHAT
YOU THINK YOU CAN ACCOMPLISH. CW, SSB, AND DIGITAL MODULATIONS WILL
ALLOW YOU TO SHOW YOUR SKILLS AND TRAIN FOR ANY UPCOMING CALL TO
ARMS. DAY OR NIGHT, HAMS SUPPLY IMPORTANT SLLS TO OUR COMMUNITY,
COUNTRY AND ORGANIZATIONS.

SUBMIT YOUR FD FORMS BY JULY 28 INCLUDING PHOTOGRAPHIC HIGHLIGHTS OF
YOUR GROUPS PLANNING AND FUN.  A GOTA AND A VHF STATION WILL ALLOW
YOUR ORGANIZATION TO INSTRUCT AND ACQUAINT VISITORS WITH YOUR CLUBS
STORY AND OUR HOBBY.

HAM RADIO IS FUN AND FD2015 IS AN IMPORTANT PART OF OUR HOBBY.
PROUDLY SHOW OFF YOUR RADIO ACTIVITY.
NNNN





VT
SM
Before RSID: <<2015-06-28T01:07Z RTTY @ 3597000+0922>>
I

ARLX010 follows

ARLX010 follows

ZCZC AX1u
QST de W1AW  
Special Bulletin 10  ARLX010
>From ARRL Headquarters  
Newington CT  June 26, 2015
To all radio amateurs 

SB SPCL ARLRLX010
ARLX010 2015 W1AW Field Day Bulletin

FD2015 fun starts at 1800 UTC Saturday for you and your club.  Swap
skills, thoughts or a story about FDs past. K6KPH will transmit
W1AWs thoughts from California with CW and Digital transmissions on
Saturday at 1430 UTC and Sunday at 0030, 0130, 1430 and 1630 UTC.

Try an original brainstorm as you find your limit or surpass what
you think you can accomplish. CW, SSB, and Digital modulations will
allow you to show your skills and train for any upcoming call to
arms. Day or night, hams supply important skills to our community,
country and organizations.

Submit your F r form
 by July 28 including photographic highlights of
your groups planning and fun.  A GOTA and a VHF station will allow
your organization to instruct and acquaint visitors with your clubs
story and our hobby.

Ham Radio is fun and FD2015 is an important part of our hoy.
Proudly show off your radio activity.
NNNN







Before RSID: <<2015-06-28T01:11Z BPSK-31 @ 3597000+1006>>
et



ARLX010 follows

ARLX010 follows

ZCZC AX10
QST de W1AW  
Special Bulletin 10  ARLX010
>From ARRL Headquarters  
Newington CT  June 26, 2015
To all radio amateurs 

SB SPCL ARL ARLX010
ARLX010 2015 W1AW Field Day Bulletin

FD2015 fun starts at 1800 UTC Saturday for you and your club.  Swap
skills, thoughts or a story about FDs past. K6KPH will transmit
W1AWs thoughts from California with CW and Digital transmissions on
Saturday at 1430 UTC and Sunday at 0030, 0130, 1430 and 1630 UTC.

Try an original brainstorm as you find your limit or surpass what
you think you can accomplish. CW, SSB, and Digital modulations will
allow you to show your skills and train for any upcoming call to
arms. Day or night, hams supply important skills to our community,
country and organizations.

Submit your FD forms by July 28 including photographic highlights of
your groups planning and fun.  A GOTA and a VHF station will allow
your organization to instruct and acquaint visitors with your clubs
story and our hobby.

Ham Radio is fun and FD2015 is an important part of our hobby.
Proudly show off your radio activity.
NNNN






GL de W1AW


This is ARRL Headquarters Station W1AW in Newington CT.