See More about New FT4 Here “At about 20 minutes into the presentation, Joe describes FT4 as being asynchronous, meaning that you can start transmitting any time you wish, rather than being synchronized to an accurate clock. That asynchronous method did not work out as well as expected in on-the-air testing, and was abandoned. The […] Read more
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A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol began shortly after the FT8 Roundup held last December 1 – 2. The goal was a mode that could compete with RTTY contesting in terms of contact rates, while preserving many of the […] Read more
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Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS April 22, 2019 Introduction: FT4 is an experimental digital mode designed specifically for radio contesting. Like FT8, it uses fixed-length transmissions, structured messages with formats optimized for minimal QSOs, and strong forward error correction. T/R sequences are 6 seconds long, so FT4 is 2.5 × […] Read more
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“Neil investigates what really matters when you are aiming for the ultimate performance with FT8 and other digital modes. He demonstrates and explains the most common problems which affect the receive and transmit paths on analogue and SDR systems. Using real-world examples of each of the pitfalls, Neil presents practical tools and techniques to help […] Read more
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“We are pleased to announce the availability of V1.0a of the Spectrum Analyser software developed by Steve Andrew specifically for the RSP line of products. This is a very-much upgraded version of the original alpha release and includes many new features as well as removing the limitations imposed on the previous version. New features include […] Read more
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This is a view from NASA of the sun today, October 9, 2018, and I am making 10m DX contacts one after another. Zero sunspots but working DX on FT8! Is FT8 creating a “tipping point” for amateur radio at the very bottom of the solar cycle? Several years ago I was captivated by a book written […] Read more
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“Hi Folks, Thanks for staying patient with me on this one. Build servers were being weird today! Happy to bring you release with simple features, small screen compatibility and polish. Head over to the download page to grab your copy: https://groups.io/g/js8call/wiki/Download-Links Included in this release are a few nice things: Small screens are now more […] Read more
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MFJ-1204 Includes radio interface cable (8-PIN DIN) Sign up for the digital revolution and explore a whole new world of amateur radio excitement using MFJ`s universal USB radio interface! The new MFJ-1204 USB Radio Interface is exceptionally easy to setup and use. However, simplicity doesn`t mean compromised performance. Here are just a few of the […] Read more
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JS8Call Download “Hi folks! Happy to announce 0.8 of JS8Call. This is a backwards incompatible release (which is the primary reason for it being released right when 0.7 expired). So, head over to the Download Page to snag your copy: https://groups.io/g/js8call/wiki/Download-Links to enjoy the new features! Plenty of big changes included in 0.8, so make sure you […] Read more
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