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2nd Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible:

from The ARRL Letter on April 12, 2018
View comments about this article!

Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible:

The second public test of FT8 DXpedition Mode has shown that the mock DXpedition stations ("Foxes") were able to work the pileups of callers ("Hounds") at a fairly good clip. Logged data showed that 390 unique stations were copied by one or more of the three Foxes. FT8 is part of the WSJT-X https://physics.princeton.edu/pulsar/k1jt/wsjtx.html digital software suite. Ned Stearns, AA7A, the operator at W7/KH7Z, learned to manage queues of calling stations much more effectively as his hour progressed, according to co-developer Joe Taylor, K1JT.

"After a program restart at 1532 UTC, he worked 105 additional stations at a rate of 225 per hour during the remaining part of the hour," Taylor reported. "Slowly but surely, we are optimizing the software and improving our 'FoxOp' skills. Further progress will definitely be possible!"

Taylor also released a list http://www.arrl.org/files/media/News/FT8%20DXpedition%20Mode%202nd%20test%20logged_calls.txt of stations heard and worked during the second public test of the still-beta FT8 DXpedition Mode protocol. It showed that W1/KH7Z logged 61 stations in 36 minutes for a rate of 102 per hour; K1JT logged 55 stations in 21 minutes for a 157 per hour rate, and W7/KH7Z worked 174 stations in 60 minutes, a rate of 174 per hour.

Stearns told ARRL that FT8 DXpedition Mode is nearing general release, but he expects another public test. "The development team has identified a few of the defects that were uncovered in the test on April 7 and is currently working on the fixes," he said.

Taylor's March presentation on WSJT-X http://www.microhams.com/2018/03/28/edited-k1jt-talk-on-wsjt-x/ at the MicroHAMS Digital Conference has been posted on YouTube. Taylor has credited the "very professional" editing by Budd Churchward, WB7FHC.

Source:

The ARRL Letter

Member Comments:
This article has expired. No more comments may be added.
 
2nd Test of FT8 DXpedition Mode Demonstrates High Contact Ra  
by KG4RUL on April 13, 2018 Mail this to a friend!
I can see it now. You drop off an automated 'Fox' at the DXpedition site and turn it ON. The 'Hounds' fire up their fully automated stations and the hunt is on. No pesky, human intervention involved.

How Sad!
 
RE: 2nd Test of FT8 DXpedition Mode Demonstrates High Contac  
by WD4ED on April 15, 2018 Mail this to a friend!
How sad it is that even just that possibility seems to really bother you enough to whine about it public! Long live sparkgap!
 
RE: 2nd Test of FT8 DXpedition Mode Demonstrates High Contac  
by KG4RUL on April 15, 2018 Mail this to a friend!
How sad that you feel the need to respond publicly. IMHO, amateur radio is becoming less about communications between people and more about technology and no real communication between living people. The goal of recent technological advances is to promote instant gratification. Key the transmitter, get another notch on your belt. I will stick to voice communications, thank you.
 
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