The FT8 parameters were tweaked slightly during the beta phase prior to the release of WSJT-X 1.8.0, and the TX time was reduced to 12.64 sec, so the duty cycle is now about 42%.
73, Richard G4DYA On 15/02/18 01:22, Dennis Moore wrote: > Specification is 13.48 sec TX, 16.52 sec RX, 45% Duty Cycle. > > Source: http://qrznow.com/new-digital-mode-from-k1jt-ft8/ > > 73, Dennis NJ6G > > > On 2/14/2018 17:07, Tom-KQ5S wrote: >> I believe FT8 is 13 sec TX, 2 sec decode and then 15 sec RX for a >> total of >> 17 sec non-TX so you have 13 sec TX and 17 sec RX. Much less than 50%. >> >> ----------------- >> 73, >> Tom - KQ5S >> >> On Wed, Feb 14, 2018 at 6:51 PM, Jim Brown <j...@audiosystemsgroup.com> >> wrote: >> >>> And even this is conservative -- JT65 is 48 sec TX and 72 sec RX, so 40% >>> duty cycle. FT8 and MSK144 have equal TX and RX times, so 50% duty >>> cycle. >>> The TX period for MSK144 can be varied from 5-30 sec, but TX and RX >>> times >>> are always equal. >>> >>> 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
