New year, new challenges..

DSC_2321The updates on the blog during the last few months has been rather slow and not as many as i would like it to be. This is mainly because a lot have happened since the end of September last year and the energy for blogging have shifted focus somewhat towards my new job as a Technical Superintendent in marine electronics at the Swedish Coast Guard, as well as another honoring request. During the autumn I was contacted by the editorial staff of the Swedish Amature radio association magazine, QTC, to start a new digital section of the monthly magazine. After some consideration I decided to accept the request but with a focus mainly on digital modes on HF.

I managed so far to publish two contributions to the digital section and have another for publication by the end of this month. The articles will also be published here on my blog for download. You can find them, in Swedish, on my special section on the blog. My hope is that the readers will find the section both interesting and inspirational to learn more about digital modes in general. My goal is also to inspire to experimentation and to educate to make the readers able to get more out of the ham-radio hobby. I’m really looking forward to write more for the new section and to discover more about digital modes in particular!

73 de SM7VRZ, Anders


WSJT-X 1.8.0 GA Released

Yesterday evening, SNT, K1JT announced through the development groups e-mail reflector that the GA-version of WSJT-X 1.8.0 had been released. The changes from the RC3 version was only minor things and a full list of changes can be found in the release notes.


To download WSJT-X 1.8.0, visit the WSJT-webiste.

The job of doing the Swedish translation of the manual will now commence and hopefully I will release it within a two month period.

73 de SM7VRZ



WSJT-X 1.8.0-RC3 släppt

Igår vid 22-tiden svensk  tid meddelande K1JT och utvecklargruppen bakom WSJT-X att en ny Release candidate har släppts till allmänheten. Användare av RC 2 rekommenderas att uppgradera för att få  tillgång till alla nya funktioner och uppdateringar som skett. RC3 finns tillgänglig på WSJT-projektets hemsida för nerladdning. 

Man har också meddelat att ett släpp av den riktiga 1.8.0-versionen är tänkt att släppas inom kort. 

Detta gör även att den svenska översättningen av användarmanualen för RC2 behöver uppdateras dock inväntas den kompletta engelska manualen före den slutgiltiga översättningen kommer att ske. Min förhoppning är att kunna släppa den svenska översättningen några veckor efter den engelska utkommit. 

73 de SM7VRZ 🙂

Svensk manual WSJT-X 1.8.0-RC2


Lagom till releasen av WSJT-X 1.8.0-RC2 kunde jag färdigställa den svenska översättningen av användarmanualen för programmet. Denna finns nu tillgänglig för nerladdning på WSJT:s hemsida.

En direktlänk till manualen hittar du här.

Notera att manualen är inte komplett då denna tillhör en RC version. Den bygger på det arbete som hittills har utförts i den engelska manualen fram till RC2-utgåvan varför det kan fattas information alternativt finnas felaktig sådan.

För er som använder manualen är jag väldigt tacksam för kommentarer och förslag till förändringar då målet är att göra användarmanualen så bra som möjligt!

73 de SM7VRZ



Svensk manual, WSJT-X 1.8..


Svenska användarmanualen, WSJT-X 1.8

Arbetet med användarmanualen för WSJT-X 1.8 går framåt och jag har nu översatt och korrigerat majoriteten av materialet. Nu kvarstår införande av ev. ändringar och lite finputsande på meningar, stavfel och annat som upptäcks efterhand. Min tanke från början var att denna skall släppas ungefär samtidigt som den skarpa versionen av WSJT-X 1.8.

Dock finns det kanske ett behov av att släppa det tidigare då RC1 versionen har fått stor spridning. Därför är min intention att så snart som möjligt släppa ett utkast till användarmanualen så att de som idag använder RC-versionen har ett stöd i en Svensk version av användarmanualen. När och om detta sker kommer att meddelas här på min blogg.


73 de SM7VRZ

SOP-activity 2017, results are in..

It’s a new month and with that the end of the SOP-activity for this year. The results are in and it seems like I’ve managed to get enough points to for the award this year aswell! From an activity point of view I’ve didn’t manage to get that many stations worked as hoped and only digimode but there will be more chances  to do better next year! 🙂

The complete log will be available soon on Clublog and for thoose interested to see wich stations that was worked.

Some quick statistics for this years activation: 🙂

Top three worked continents:

Quantity Continent
226 Europe
6 Asia
5 North America

Top three longest distance:

# Call Mode Band Distance
1 W0OGH FT8 20m 8814km
2 JR3IIR FT8 20m 8489km
3 JA4FKX JT9 30m 8397km

Top three shortest distance:

# Call Mode Band Distance
1 SM7IUN FT8 40m 111km
2 SP1BBV JT65 20m 287km
3 DF9OX FT8 17m 361km

Rarest QSO:

Call Mode Band Distance
SO1WS FT8 10m 3872km

Number of worked SOP-qualified countries:

Quantity Country
44 Germany
19 Russia
14 Finland
10 Poland
8 Sweden
4 Norway
2 Lithuania
2 Latvia
1 Estonia
1 Denmark
1 Kaliningrad

Already looking forward to the next activation and hopefully a lot more stations in the log! 🙂

73 de SM7VRZ

New release candidate for WSJT-X

The development team behind WSJT-X announced the new release candidate for WSJT-X version 1.8.0 (WSJT-X 1.8.0 rc1) for about two weeks ago. Since then, more and more users are “upgrading” to the new RC-version exploring the new exciting functions that have been developed.


The greatest attention has undoubtedly been the new mode FT8, Franke Taylor 8-FSK modulation. Since the release the number of stations working FT8 has been growing immensely on the bands. The supporting software, JTAlert by VK3AMA, have also been updated to support the new mode.

The new mode have been developed by K1JT and K9AN and uses 15sec TX/RX-sequences. Compared to JT65/9:s 60sec this means it´s about 4 times faster. Because of this, the modes puts the operators timing skills to the test and requires a much more quicker operating style than JT65/9. But don’t worry, the software has a built in auto-sequencing function that will help you with the fast maneuvers required. The message structure is similar to the other JT-modes and the normal JT65 user will find it familiar right away.

The list below summarizes more details on the FT8-mode (according to release note):

  • 15 sec T/R-sequence length.
  • 75 bit messages length + 12 bit CRC.
  • LDPC FEC-code.
  • 8-FSK modulation with 6.25 Hz tone spacing.
  • Constant-envelope waveform.
  • 50 Hz bandwidth.
  • 7×7 Costas array synchronization at start, middle and end.
  • 12.64 sec transmission duration.
  • -20dB decoding threshold. With the forthcoming “AP” decoding some extra dB:s will be possible.
  • Multi decoder to decode signals i passband, just as in JT65. Multipass decoder possibility is under development.
  • Auto sequencing (optional) as well as optional auto reply function when sending CQ.

More functions are being developed and as usual the input from the users is an important factor for enhancing the operating experience. Hopefully there will be an second release candidate some time soon so more exciting functions will be available.

If you would like to download the release candidate, click here and choose the correct package for you platform.

Regarding the user guide, the work with translating it to Swedish is under way. However a release date for the user guide is not available for the moment.

73 de SM7VRZ