FT8: WSJT-X 2.0 New version

It’ Incoming a new version of the software W1JT: the novelty is that we will have 77 bit instead 75 in transmission protocols.

It’ already possible to download the beta-tester version of WSJT-X v2.0 here: https://physics.princeton.edu/pulsar/k1jt/wsjtx-2.0.0-rc1-win32.exe

They are applied the most important new features of the program to the operating mode of FT8 and MSK144.

These protocols now carry a payload of information 77 bit, in comparison with previous messages 75 bit (FT8) and 72 bit bit (MSK144). The cyclic redundancy checks (CRC) They are expanded by 12 a 14 bit (FT8) e da 8 a 13 bit (MSK144). These changes enable The new message formats for efficient and robust North American QSO in VHF contests, European VHF contests, ARRL Field Day e ARRL RTTY Roundup. Also they provide a user-friendly support for names, non-standard rates

pretend decoding much smaller and many other benefits.

Transition period: to facilitate the transition of protocols from v1.x to v2.0, early versions beta test

accept the original format and the new FT8. The third candidate version (target date of 12 November 2018, see below) and later interrupt support for the old protocol FT8. Unlike, all candidates and the last WSJT-X 2.0 only accept the protocol by MSK144. (The user community MSK144 is much smaller than that of FT8 and we are sure that this group may be persuaded to quickly update).

During the beta test period, v2.0 protocols must used in different operational frequencies from FT8 / Use of MSK144 in v1.x. Per FT8 v2.0, We recommend using bands 40 and 20 meters, mark the frequencies 7.078 and 14.078 MHz.

the concentration should help the asset test and make many QSOs as possible random. For MSK144 during the recommended frequencies 50,380 MHz instead of the Quick Start Guide for WSJT-X 2.0

50.360 (IARU Region 1) and 50.280 rather than 50.260 (Regions 2 and 3). As soon as the majority of regular users updated to version v2.0, you can return the MSK144 activities to move to 50.360 the 50.260 MHz.


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Alex ik8yfu www.ik8yfu.it

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