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
DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes The present-day DX Engineering was launched in the year 2000. To celebrate our 20th Anniversar... Read more
“This video is a comprehensive review of the functions and operation of the RigExpert AA-55 ZOOM Antenna and Cable analyzer. This lightweight po... Read more
In this episode, we cover a few new products and fun at Huntsville Hamfest and Tokyo Hamfair. Read more
In the midst of packing for my DXpedition / SCUBA dive trip to San Salvador Island, I felt the need to start a series on designing and building a port... Read more
Uniden Advances Scanning with Digital Mobile Radio (DMR) Demonstrating our commitment to continually enhance the value and relevance of your investmen... Read more
IC-9700 Manual Basic Manual http://www.icom.co.jp/world/support/download/manual/pdf/IC-9700_ENG_Basic_0.pdf Advanced Manual: http://www.icom.co.jp/wo... Read more
TYT DM-UVF10 ,a dualdisplay, dual standby two-way radio,adopts high-technology and novel designDM-UVF10 adopts humanism design,making it smart... Read more
Plug & Play Auto Tuner Plug & Play! You won’t even know it’s there . . . MFJ-939I/K/Y automatically tunes your antenna as you tune your radio.... Read more