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It’s not packaged for Debian or Fedora, so it must be built from source, available at the link above. Stefano, IZ3NVR/KD2BGM was trying to get so2sdr to work under Linux Mint and while it would compile, it did not run, so Russ set about trying to get it going. JT65 LINUX SOFTWARE
Several people at Hamvention asked about contest logging software for Linux, but Russ was at a loss for a recommendation. FCC Dismisses Texas Ham’s Fourth Petition, Calls it “Repetitive”. Thanks to Matt, KC8BEW, who stopped by and helped out at the booth. Estimated attendance was 25,000 individuals. LHS had the same booth as last year at North Hall #131. If there’s any interest, I’m happy to expend this article, but hopefully this tells you what FT8 is all about, and gives you enough to get started. This runs in the background and keeps your clock in-sync by resetting the time to one of the online atomic clock servers every 20 minutes. I use the Dimension 4 for keeping my clock accurate. That means that you need your clock to be accurate to the precise second. A computer’s onboard clock can be notorious for drifting off, and FT8 needs to transmit at very specific times to work. Your computer’s clock does have to be spot on with FT8. Often this will be a separate COM port that needs setting up in the software JT65 LINUX HOW TO
PTT – So that the PC can put the rig into Transmit, the software needs to know how to trigger Transmit. Typically the interface will appear as a COM port and WSJTX will need to be set to the correct COM Connecting to the radio’s CAT/DATA port for controlling the radio. Radio interface settings – Most common models of radio already have their comms settings built-in to WSJT-X, so it’s a case of selecting from a list of radios. Typically means connecting leads to the soundcard, or using a soundcard built in to the interface – then setting up software to use the right speaker and mic settings for sending and receiving on the WSJT-X app JT65 Alert – A handy add-on application that helps with things like logging and alerts for wanted countriesĪs with all data modes software, setup requires some setting up, notably:. WSJT-X– This is written by the creator of JT65 and FT8, and does a solid job of handling both modes (Versions for Windows, Linux & Mac). There are several types of interface available, depending on your rig. The interface will need to connect into the PC’s soundcard (for audio) and typically USB for controlling the radio. As with other data modes, you’ll need some kind of interface box to sit between the rig and your computer. JT65 LINUX PLUS
This is just a summary of the basics, plus a few tips I’ve picked up along the way.įirst off, you need to connect your PC to your HF rig.
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This isn’t a full “how to” guide on setting up FT8, as there are plenty of those online already. You can also use the excellent online PSK Reporter website to see where your FT8 CQ calls are reaching, as seen in this screenshot: PSK Reporter, showing FT8 getting to the US, Kuwait and Malaysia on 10 watts (30m) Setting up for FT8 New “chunks” of messages arrive every 15 seconds, and are decoded by the WSJT-X software, which displays the messages like this: FT8 decoded messages in WSJT-XįT8 handles very weak signals very well, meaning that a Foundation licence holder with just 10 watts should be able to make some impressive contacts with a modest antenna – something not possible with voice or some other data modes. You’ll see from the above “waterfall” screenshot that there are over a dozen QSOs visible – these are all taking place on a single frequency of 14.074MHz Here is what FT8 signals looks like, displayed in the WSJT-X waterfall view: FT8 on 14.074MHz (WSJT-X) The application WSTJT-X is one of the most common used for FT8 (As well as JT65), and was written by the inventor of the mode, Joe Taylor K1JT. The exchange above would therefore take about 90 seconds (compared with seven minutes on JT65). There are 4 slots per minute, and you transmit for one 15 second block, then listen for replies for 15 seconds, and transmit again for 15 seconds. G0QQQ confirms signal report & replies with his own reportĮach message of up to 13 characters takes 13 seconds to send. Here is a typical conversation over FT8: “CQ M6PSK JO01” With FT8, you’re restricted to very small messages, with a limit of 13 characters per message.
It’s a great way of racking up the countries you’ve worked, without too much hassleĪs with modes such as JT65 and PSK31, you interface your HF rig to a computer, and send out text encoded by your computer over the amateur bands. It’s semi-automated, making for easy contacts. It’s popular, so there’s lots of activity. It works very well even with a lot of noise. It’s significantly faster than the similar JT-65. At the time of writing (Feb 2018), it appears to be the most popular for a number of reasons: In 2017, FT8 started to become the most popular of the various data modes.
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