A new “pre-release” version of WSJT-X now is available. This is the Amateur Radio digital software suite developed by Joe Taylor, K1JT, that includes the new FT8 mode, which has been catching on like wildfire. The September 2 release, WSJT-Xversion 1.8.0-rc2, fixes a number of issues, provides better performance, and offers some new features.
“Implementation of FT8 and its auto-sequencing feature is now more capable and more polished,” Taylor said in the release notes. “The decoder is faster and better. It now includes signal subtraction, multi-pass decoding, and the use of accumulated ‘a priori’ information as a QSO progresses. Sensitivity extends downward as far as –24 dB in some circumstances.”
Taylor said that overlapping signals “two and three deep” are frequently decoded at essentially the same frequency, and on a crowded band “we sometimes see more than 30 decodes in a single 15-second interval, over a 2-kHz window.” In addition, the North American VHF Contesting Mode has been expanded to include both FT8 and MSK144 modes, and the WSJT-X User Guide has been extensively updated.
“Depending on what code revision you upgrade from, it may be necessary to do a one-time reset of the default list of suggested operating frequencies,” Taylor pointed out in his release notes. Some new features have been discussed in the WSJTMeteor Scatter and Weak Signal Group.
Digital modes such as JT65 and FT8 require that your computer’s internal time clock be set precisely. If your computer’s clock is off by more than 1 or 2 seconds, contacts may be difficult or impossible. Internet time synchronization may be sufficient. The WSJT-X documentation recommends using Meinberg NTP on Windows machines to synchronize with internet time servers.
Logbook of The World (LoTW) now supports the upload of FT8 contacts after a TQSL configuration file update, which was released shortly after the mid-August debut of the new ADIF standard (version 3.0.6) with support for FT8. — Thanks to the ARRL Contest Update
“Faith Hannah (AE4FH) and Hope (KM4IPF) are planing to make a mini DXpedition to the Dry Tortugas in December 2018 and also plan to work the RSG... Read more
Ameritron HF+6 1200W Solid State Amplifier 1.5-54 MHz . . . 1200 Watts PEP Output, Instant Automatic band switching, no tuning, no warm-up, SWR protec... Read more
A high-performance SDR in a mini PCIe form factor Features & Specifications RF Chipset: Lime Microsystems LMS7002M FPRF FPGA Chipset: Xilinx Artix... Read more
Hexbeam Finally and after many prayers and here the new Hexbeam with 40 meter band including 7 Bands! Note: The 40 meter band is not directional like... Read more
The Cushcraft MA6VA provides amazing coverage, great versatility and incredible performance with an addition of 6 meters. Enjoy the antenna con... Read more