The latest TQSL update (Config.xml version 11.8), released on May 22, includes FT4 as a submode of MFSK. It also adds AISAT-1 and PO-101 in the satellite category. As of May 23, 1,048,281,611 contact records have been entered into the system, resulting in 200,387,247 contact confirmations. LoTW has 118,328 users. https://lotw.arrl.org Read more
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Dave Bernstein reported this on the DXLabs support group today: —————————————————————– ADIF 3.1.0 was approved today: ADIF 3.1.0 specifies that the representation for FT4 is an ADIF record is <MODE:4>MFSK <SUBMODE:3>FT4 This is the representation used in the current version of DXKeeper (14.9.2) when expor... Read more
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The FT4 Protocol for Digital Contesting by K1JT Read more
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Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1JT Read more
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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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