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Datamode - FT8 Part 2


The WSJT Development Group is pleased to announce the general availability (GA)

release of WSJT-X Version 2.0.0.

If you have been using version 1.9.1 or earlier, or one of the candidate releases

v2.0.0-rc#, it’s important to upgrade now. The original protocols for FT8 and MSK144

are no longer supported. With v1.9.1 and earlier you cannot communicate with WSJT-X

2.0 using these modes.

We now recommend using WSJT-X 2.0 anywhere in the conventional FT8 and MSK144

sub-bands. Everyone should upgrade to v2.0 by no later than January 1, 2019.


  1. Compound and nonstandard callsigns are automatically recognized and handled using

new FT8 and MSK144 message formats.

  1. The new FT8 protocol provides optimized message formats for North American VHF

contests, European VHF contests, ARRL Field Day, and ARRL RTTY Roundup. Similarly,

the new MSK144 protocol provides optimized message formats for North American VHF and

European VHF contests. Full support is provided for “/R” and “/P” calls in the

relevant contests.

  1. The new protocols provide nearly equal (or better) sensitivity compared to the old

ones, and lower false decode rates.

  1. New logging features are provided for contesting and for “Fox” (DXpedition) mode.

Logging is optionally integrated with N1MM Logger+ and WriteLog.

  1. Color highlighting of decoded messages provides worked-before status for

callsigns, grid locators, DXCC entities, continents, CQ Zones, and ITU zones on a

“by band� and “by mode� basis, and for stations that have uploaded their logs

to Logbook of the World (LoTW) within a specified time interval.

  1. The WSPR decoder now achieves decodes down to S/N = -31 dB. For the particular

benefit of LF/MF users, an option “No own call decodes” has been added.

  1. The UDP messages sent to companion programs have been expanded and improved.

A more detailed list of program changes can be found in the cumulative Release Notes:


Upgrading from earlier versions of WSJT-X should be seamless. There is no need to

uninstall a previous version or move any files.

Please do not continue to use any release candidate – that is, any beta release with

“-rc#” in the version name.

Links to installation packages for Windows, Linux, and Macintosh are available here:


You can also download the packages from our SourceForge site:


It may take a short time for the SourceForge site to be updated.

We hope you will enjoy using WSJT-X Version 2.0.0.

– 73, Joe, K1JT, for the WSJT Development Group


I’m hoping to give this a go today.


The uptake of Ver 2.0.0 seems to have been much faster in North America than in Europe. However on 40m and 20m yesterday it looked like there had been about a 40% changeover to the new version amongst European stations. If you are running Ver 2.0.0 you can see all signals as tracks on the waterfall, but only Ver 2.0.0 signals will decode.

Walt (G3NYY)


Friday 14th December 2018 - The Cloud G/SP-015

Gig: Joe Longthorne
Venue: Shaftesbury Casino, West Bromwich

It was a case of “spot the difference” from my point of view with my first activation using WSJT-X 2.0. Everything seemed to be exactly the same, initially at least.

I soon worked out that I could call CQ SOTA M1EYP/P IO83 - which I definitely couldn’t before. I couldn’t get the ‘SOTA’ bit to stick and had to keep putting it back in manually. I didn’t get round to experimenting if the IO83 could be replaced with a version of the SOTA reference, so I continued to use my free text line at the end of the QSO for that.

6 QSOs made on 20m FT8, including one into the USA, followed by a couple on 2m FM, including S2S with GW4HQB/P on Foel Fenlli GW/NW-051.

And of course, another gig. My first ever in a casino, and preceded by the promoter taking us to a nearby Indian restaurant and treating all the band and sound crew to a very good curry.


Wonder if that was the Vine in Roebuck Street. If not go there next time you’re in West Brom… Not for everybody, but it’s an experience anyone who likes curry and decent beer should try at least once :slight_smile:


No, it was Akash Balti on the High Street.


Hi Walt,
Monitoring the WSJTx Groups.io list there are now people reporting that they can no longer get any (or only very few) decodes with their 1.9x versions of WSJTx - so (at least in the US it seems) most people have moved to v 2.00 as request by JT. I’m actually seeing lots of traffic when using WSJTx v2.00 where a couple of weeks ago that was not the case, so it looks like also here in Europe people are moving over.
My previous thought that JT may have changed the defualt frequency on 20m for FT8 was a red herring - the frequency I came up with on first start was one I had entered for a DXpedition.

By the way if anyone is getting the error panel related to accessing LOTW coming up with v 2.00 GA (even if you don’t use LOTW!) it is due to a problem with SSL verification - the solution is documented in the V2.00 quick guide document. There’s a pre-prepared package to download and install, after that all is fine.