Nov 01, 2017  Joe Taylor, K1JT, has announced the full General Availability release of version 1.8.0 of the popular WSJT-X software package. WSJT-X implements communication protocols or “modes” called FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for.

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Joe Taylor, K1JT, has announced the full General Availability release of version 1.8.0 of the popular WSJT-X software package.

WSJT-X implements communication protocols or “modes” called FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions.

As we find ourselves slowly strolling toward the bottom of the solar cycle, HF propagation continues to decline. Many people are turning to these weak digital signal modes as a way to continue to be active, even under the worst conditions. Others enjoy these modes for use with QRP rigs or minimal antennas. There’s a lot to be said about having the ability to get a signal from here to there at >20db below the noise floor.

This is a major update of WSJT-X, featuring the new FT8 mode and improvewd performance of JT65, QRA64 and MSK144 as well as many other performance enhancements, support for additional radios, a new and improved user guide and many other features. Complete release notes are available here, or at the bottom of this post.

WSJT-X is a complex program. Be sure to read the online WSJT-X User Guide for Version 1.7.

WSTJ-X v1.8 is a free download and is available from the WSJT-X website here.

NEW FEATURES IN WSJT-X Version 1.8.0
————————————

1. New mode called FT8: sensitivity down to -20 dB on the AWGN
channel; QSOs 4 times faster than JT65 or JT9; auto-sequencing
includes an option to respond automatically to first decoded
reply to your CQ.

2. New mode for accurate Frequency Calibration of your radio.

3. Improved performance of decoders for JT65, QRA64, and MSK144.
MSK144 includes facilities for amplitide and phase equalization
and an “SWL” mode for short-format messages.

4. Options to minimize screen space used by Main and Wide Graph
windows.

5. Enhanced management scheme for table of operating frequencies, and
a new set of default frequencies specific to the three IARU
Regions.

6. Improved CAT control for many rigs, including those controlled
through Commander or OmniRig.

7. New keyboard shortcuts to set “Tx even/1st” ON or OFF.

8. A number of (mostly minor) bug fixes and tweaks to the user
interface. For example: new behavior for the audio level slider;
correctly logged QSO start times in certain situations; correct
control of FT-891/991 and some other radios via rigctld.

At the time of the v1.8.0-rc1 release the following tasks are yet to
be completed:

1. Updates to WSJT-X User Guide.
2. Sample files for FT8.
3. Enhanced decoding using AP (“a priori”) information.
4. Signal subtraction and multi-pass decoding.
5. Option to Auto-respond to the weakest responder to your CQ.

Installation packages for Windows, Linux, OS X, and Raspbian can be
downloaded from the WSJT web site:
http://physics.princeton.edu/pulsar/K1JT/wsjtx.html

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Please send bug reports to either wsjtgroup@yahoogroups.com or
wsjt-devel@lists.sourceforge.net. Such reports should include a full
prescription of steps to reproduce the undesired behavior. You must
be a subscriber to post to either of these lists.

Brief Description of the FT8 Protocol
————————————-

WSJT-X Version 1.8.0 includes a new mode called FT8, developed by K9AN
and K1JT. The mode name “FT8” stands for “Franke and Taylor, 8-FSK
modulation”. FT8 uses 15-second T/R sequences and provides 50% or
better decoding probability down to -20 dB on an AWGN channel. An
auto-sequencing facility includes an option to respond automatically
to the first decoded reply to your CQ. FT8 QSOs are 4 times faster
than those made with JT65 or JT9. FT8 is an excellent mode for HF
DXing and for situations like multi-hop E_s on 6 meters, where deep
QSB may make fast and reliable completion of QSOs desirable.

Some important characteristics of FT8:

– T/R sequence length: 15 s
– Message length: 75 bits + 12-bit CRC
– FEC code: LDPC(174,87)
– Modulation: 8-FSK, tone spacing 6.25 Hz
– Constant-envelope waveform
– Occupied bandwidth: 50 Hz
– Synchronization: 7×7 Costas arrays at start, middle, and end
– Transmission duration: 79*1920/12000 = 12.64 s
– Decoding threshold: -20 dB; several dB lower with AP decoding
– Multi-decoder finds and decodes all FT8 signals in passband
– Optional auto-sequencing and auto-reply to a CQ response
– Operational behavior similar to JT9, JT65

We plan to implement signal subtraction, two-pass decoding, and use of
a priori (AP) information in the decoder. These features are not yet
activated in v1.8.0.

We haven’t yet finalized what the three extra bits in the message
payload will be used for. Suggestions are welcome!

— Joe, K1JT, for the WSJT Development Team

Features:

• SQLite super fast data base, 100% Native macOS app.
• Integrated Real Time Club Log, QRZ Logbook, LoTW, HRDLOG and eQSL QSO upload, LoTW and eQSL Confirmations.
• Log directly from WSJT-X, JTDX, JS8Call and automatically upload to Club Log, QRZ Logbook, LoTW, HRDLOG and eQSL.
• DX Lab Suite Commander TCP Radio CAT server for WSJT-X.
• Log directly from MacDoppler satellite tracking software.
• Internal databases updated daily over the Internet.
• QRZ XML, HamCall, HamQTH, QRZCQ and WM7D Call Books.
• 2D and 3D display of DX Cluster Propagation by Band.
• Filtered DXCluster, WSJT-X, JTDX spots color coded for worked/confirmed status.
• Band Activity Display.
• CW Keyer Supports K1ELWinkeyer for Mac, and ZLP DigiMaster.
• Text To Speech and Record/Playback audio files keyer.
• Exports ADIF, SOTA CSV, KML, Imports ADIF, SOTA CSV.
• 2D, 3D & Web Map Full Screen Mode.
• 2D Map VUCC Grid square overlay.
• DXpedition Tracker with Band/Mode Alarms.
• NCDXF/IARU Beacon tracking.
• DX Alarms including Band Openings, specific calls, missing DXCCs.
• DX/Contest mode data entry.
• Mode mapping and user band plans.
• Echo frequency over USB/Serial for amplifiers, SteppIR, etc.
• AppleScriptable.
• SOTA Grid lookup, DXCluster spot SOTA decode.
• HB9BZA LoTW user list. SKCC number list updates.
• Label Printing - Address or QSO Details - sheet or Dymo.
• Spot integration with dogparkSDR FlexRadio 6000 client.
• Google Earth Pro support.
• Update exisiting log entries with Call Book.
• Contest Helper with K5ZD call completion and by-band Dupe Checking.
• QSL print and email.
• SWL Schedules, Rig Control and Memory Scanning.
• Speed Log for entering old paper log and QSL card data.
• Online and built-in Mac Help.
  

Supported Radios

• Elecraft K2 (with KIO2) and K2/100, K3, K3S, KX2, KX3.
• Kenwood TS-50, TS-60, TS-440S, TS-450, TS-480, TS-570, TS-590S, TS-590SG, TS-670, TS-690, TS-790, TS-850, TS-870, TS-890S, TS-940S, TS-950S,TS-950SDX, TS-990S,TS-2000, R-5000.
• Icom IC-703, IC-706, IC-706MkII, IC-706MkIIG, IC-718, IC-735, IC-736, IC-737, IC-746, IC-746Pro, IC-751, IC-756, IC-756Pro, IC-756ProII, C-756ProIII, IC-7000, IC-7100, IC-7200, IC-7300, IC-7400, IC-7410, IC-7600, IC-7610, IC-7700, IC-7800, IC-7850, IC-7851, IC-9100, IC-9700, IC-765, IC-775, IC-781, IC-910, IC-970, R71A, R75, R8500, R9000, PCR-1000, PCR-2500.
• Yaesu FTdx101D, FTdx101MP, FTdx1200, FTdx3000, FTdx5000, FTdx9000, FT-2000, FT-1000MP, FT-1000D, FT-991, 991A, FT-990, FT-950, FT-920, FT-900, FT-897, FT-891, FT-890, FT-857, FT847, FT-840, FT-817, FT-818, FT-757GXII, FT-450, FT-100, VR-5000.
• JRC JST-245, NRD-525, NRD-535, NRD-545.
• Drake R8B.
• Ten-Tec Jupiter, Argonaut V, Argonaut VI, Orion, Eagle, RX-320, RX-350, Pegasus, Omni VI, Omni VII.
• Racal 6790/GM, Alinco DX-77, Rockwell-Collins HF-2050, Collins/AOR DDS-2A, DZKit SIenna.
• ELAD FDM-DUO (TS-480).
• XieGu G90.
• Expert Electronics SunSDR2 Pro, DX, QRP, MB1 and Colibri.
• FlexRadio 6000 series LAN Interface SSDR V1 - V3.
• AOR AR8200, AR8600, AR5000, AR3000A, AR7030.
  

Supported Rotor Controllers

• Yaesu GS-232
• hy-gain DCU-1 Pathfinder
• Green Heron
• SARtek
• Easy-Rotor-Control (ERC)
• M2 RC2800
• MDS RC1
• Idiom Press RotorCard SDX
• Prosistel CBOX
• AlfaSpid
• Radant AZ
  

Other rotor controllers not listed here support the popular GS-232 or DCU-1 protocols.