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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/wsjtx/trunk@8745 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
411 lines
14 KiB
Plaintext
411 lines
14 KiB
Plaintext
__ __ ______ _____ ________ __ __
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| \ _ | \ / \ | \| \ | \ | \
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| $$ / \ | $$| $$$$$$\ \$$$$$ \$$$$$$$$ | $$ | $$
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| $$/ $\| $$| $$___\$$ | $$ | $$ ______ \$$\/ $$
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| $$ $$$\ $$ \$$ \ __ | $$ | $$| \ >$$ $$
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| $$ $$\$$\$$ _\$$$$$$\| \ | $$ | $$ \$$$$$$/ $$$$\
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| $$$$ \$$$$| \__| $$| $$__| $$ | $$ | $$ \$$\
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| $$$ \$$$ \$$ $$ \$$ $$ | $$ | $$ | $$
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\$$ \$$ \$$$$$$ \$$$$$$ \$$ \$$ \$$
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Copyright 2001 - 2018 by Joe Taylor, K1JT.
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Release: WSJT-X Version 1.9.1
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June 1, 2018
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-----------------------------
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This critical bug fix release repairs an unintended restriction in the FT8
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DXpedition mode. It supersedes v1.9.0 and must be used for DXpedition Fox
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operators.
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Release: WSJT-X Version 1.9.0
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May 28, 2018
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-----------------------------
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Changes from WSJT-X Version 1.9.0-rc4 include the following:
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- Display in the right text window of MSK144 messages addressed to
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"MyCall" has been restored.
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- Fox is not allowed to transmit in any of the default FT8 sub-bands.
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- Fox can now work Hounds using compound callsigns.
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- Fox can now transmit free-text messages (and any standard FT8 message)
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by using Tab 1 or Tab 2.
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- Added a checkbox to enable more frequent programmed CQs by Fox.
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Default is OFF.
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- Alt+N keyboard shortcut has been restored.
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- MacOS program crash on unexpected decode request has been fixed.
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- Several minor bug fixes and added convenience features.
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- Hamlib, support for TRXManger added.
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- Hamlib, improved support for flrig.
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Release: WSJT-X Version 1.9.0-rc4
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April 30, 2018
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---------------------------------
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Changes from WSJT-X Version 1.9.0-rc3 include the following:
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- Corrected a number of flaws in Fox and Hound behavior, FT8
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DXpedition Mode
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- Decoded CQ calls where a prefix has been used as a suffix should
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have the DXCC entity name assigned correctly in almost all cases
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- Improved AFC capability for the wider JT65 sub-modes to help with
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drifting signals
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- Better support for macOS using hi-DPI Retina displays
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- New UDP message that allows external applications to highlight
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decoded callsigns
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- Main-screen geometry and state of the "splitter" setting between its
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two text windows is now properly restored after program restart.
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- New simulator jt49sim[.exe] replaces jt4sim and jt9sim
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- Correct S/N measurements for the JT9 slow/wide submodes
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- Other minor bug fixes
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- Updated copy of cty.dat
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Release: WSJT-X Version 1.9.0-rc3
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March 18, 2018
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---------------------------------
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Changes from WSJT-X Version 1.9.0-rc2 include the following:
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- Corrected a number of flaws in Fox behavior, FT8 DXpedition Mode
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- Allow Hounds to use compound callsigns
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- Write debugging information to FoxQSO.txt.
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- Fix the "Blue Decode Button" bug
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- Allow partial processing of incoming UDP Reply messages so that
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non-CQ/QRZ decodes can be processed. The processing is the same as
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double-clicking the same decoded message within WSJT-X except that
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"Enable Tx" will not be enabled.
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- Send DX grid locator to wsjt_status.txt, for use by applications like
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PstRotatorAZ
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- Correct the display of DXCC status of KG4 calls
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- Updated copy of cty.dat
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- Updates to documentation
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- Other minor bug fixes
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- This release contains updated Hamlib functionality including changes
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to the Yaesu FT-817 back end that allows the uBITx kit transceiver
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to be CAT controlled by WSJT-X.
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Release: WSJT-X Version 1.9.0-rc2
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February 26, 2018
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---------------------------------
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Changes from WSJT-X Version 1.8.0 include the following:
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- New FT8 DXpedition Mode to facilitate high QSO rates in pileup
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situations
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- Decoding improvements for JT65 mode, including a priori (AP)
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decoding when VHF/UHF/Microwave features are enabled
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- Optional Auto-Sequencing in JT4, JT9, and JT65 when
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VHF/UHF/Microwave features are enabled
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- Better suppression of low-confidence false decodes generated by AP
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decoding in FT8 mode
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- Improved decoding performance for WSPR mode, especially effective at
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LF and MF
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- Minor adjustments to auto-sequencing behavior
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- More flexible Doppler control features for EME
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- Improved waterfall sensitivity for very weak signals
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- Automatic real-time forwarding of logged information to N1MM Logger+
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- Expanded and improved UDP messages sent to companion programs
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- Bug fixes and other minor tweaks to user interface
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A primary purpose of this beta release is to allow field testing of
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FT8 DXpedition Mode. Instructions for this mode are posted here:
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http://physics.princeton.edu/pulsar/k1jt/FT8_DXpedition_Mode.pdf
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Contacts in FT8 DXpedition Mode must use WSJT-X v1.9.0 at both ends of
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the QSO. Please report any anomalous behavior to email list
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wsjt-devel@lists.sourceforge.net. You must be a subscriber in order
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to post there.
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Release: WSJT-X Version 1.8.0
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October 27, 2017
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-----------------------------
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This is the full General Availability release of WSJT-X Version 1.8.0.
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Changes from WSJT-X Version 1.8.0-rc3 are very minor:
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- Right-click on the Wide Graph now pops up a Context Menu. Select
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the item *Set Rx & Tx Offset* to complete a one-handed setting of
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both red and green frequency markers.
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- Several clarifications and additions to Tool Tips and the User Guide.
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We recommend that all users should upgrade to WSJT-X Version 1.8.0.
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If you upgrade from v1.8.0-rc1 it may be necessary to do a one-time
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reset of the default list of suggested operating frequencies. Go to
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*File->Settings->Frequencies*, right click on the table and select
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*Reset*.
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Release: WSJT-X Version 1.8.0-rc3
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October 16, 2017
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---------------------------------
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Most (but not all) changes since Version 1.8.0-rc2 involve user
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control of the increasingly popular FT8 mode. The "RC3" release also
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includes minor bug fixes and updates to the WSJT-X User Guide.
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The following list includes all of the more important changes:
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- New optimization of GUI for simplex and split behavior in FT8 mode.
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1. Checkbox "Lock Tx Freq" on main window is relabeled "Hold Tx Freq".
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2. Double-clicking on decoded messages that do not contain your own
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call moves both Rx and Tx frequencies. If the first callsign is
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your own call, only Rx freq moves.
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3. Double-clicking on decoded messages moves the Rx frequency. If
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"Hold Tx Freq" is checked, Tx frequency is moved only if CTRL was
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held down.
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4. Clicking on the waterfall moves Rx and Tx frequencies as
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before: Rx only on a simple click, Tx only on SHIFT-click, and
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both on CTRL-click. This happens even if "Hold Tx Freq" is
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checked.
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- Add a semi-automated "FreqCal" procedure: see *Solve for calibration
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parameters* on the Tools menu.
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- Improv auto-sequencing behavior: stop and on-frequency
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transmission if a called station comes back to someone else.
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- Improve S/N estimation in some situations involving QRM.
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- Fix an initialization issue with user-modified application fonts.
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- Fix an issue with Tx5 message generation with Type 2 compound calls.
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- Enhance and improve the ADIF parser of logbook records. Update
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the band limits as per ADIF 3.0.6 specification.
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- Increase the FT8 DT range to +/- 2.5 s.
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- Do not allow window manager events to close the astronomical data
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window.
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- Add an "Erase" item to the context (right-click) menu for decoded
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text.
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- Extend UDP messages with an "off air" boolean field indicating that
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the decode was derived from a .WAV file playback rather than an on air
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reception.
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- Extend reference applications to use the new off air decode message
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field.
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- Improve performance of FT8 decoder, especially for overlapping
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signals.
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- Allow specialized use of "x2 Tone Spacing" in FT8 and slow JT9
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modes.
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- Move "NA VHF Contest Mode" checkbox to main screen. Query the
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operator if d > 10000 km.
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- Adjust UI to improve portability with font size changes and between
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platforms.
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- Extend UDP Reply message to support keyboard modifiers. This allows
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UDP servers to emulate keyboard modified double-clicks on decoded
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messages, e.g. ALT+double-click for replying to a CQ or QRZ call
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without changing ones Tx frequency offset.
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- Update the cty.dat file (21st Sept 2017).
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- Ensure that Fast Graph is properly initialized.
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- Better handling of worked before and country name display. Appended
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text is added at a fixed column unless the message overlaps in which
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case the appended information floats to the right.
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- Restore printing of MSK144 decode quality information.
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- Display Echo Graph automatically when Echo mode is started.
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- Fix a bug that prevented double-click on a JT65 EME-style "OOO"
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message from populating the Tx message boxes.
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- Fixed behavior with double-click on 'CQ <AA-ZZ> <call> <grid>.'
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- Update the "blank line" divider with band ID at 4*TRperiod/5.
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- Fix cty.dat lookups that were not honouring exact match flags
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- Add some further Copyright protections.
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- Fix a bug involving "firstcall contains mycall" but not equal to mycall.
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- Fix an issue with editing IARU regions in the working frequencies table.
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Release: WSJT-X Version 1.8.0-rc2
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September 2, 2017
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---------------------------------
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Implementation of FT8 and its auto-sequencing feature is now more
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capable and more polished. The decoder is faster and better: it now
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includes signal subtraction, multi-pass decoding, and the use of
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accumulated "a priori" information as a QSO progresses. Sensitivity
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extends downward as far as -24 dB in some circumstances. Overlapping
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signals 2 and 3 deep are frequently decoded at essentially the same
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frequency. On a crowded band we sometimes see more than 30 decodes in
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a single 15-second interval, over a 2 kHz window. The North American
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VHF Contesting Mode has been extended to include both FT8 and MSK144
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modes.
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The "RC2" release also includes many minor bug fixes and an
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extensively updated WSJT-X User Guide.
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Depending on what code revision you upgrade from, it may be necessary
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to do a one-time reset of the default list of suggested operating
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frequencies. Go to *File->Settings->Frequencies*, right click on
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the table and select *Reset*.
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Release: WSJT-X Version 1.8.0
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-----------------------------
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NEW FEATURES IN WSJT-X Version 1.8.0
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------------------------------------
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1. New mode called FT8: sensitivity down to -20 dB on the AWGN
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channel; QSOs 4 times faster than JT65 or JT9; auto-sequencing
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includes an option to respond automatically to first decoded
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reply to your CQ.
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2. New mode for accurate Frequency Calibration of your radio.
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3. Improved performance of decoders for JT65, QRA64, and MSK144.
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MSK144 includes facilities for amplitide and phase equalization
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and an "SWL" mode for short-format messages.
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4. Options to minimize screen space used by Main and Wide Graph
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windows.
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5. Enhanced management scheme for table of operating frequencies, and
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a new set of default frequencies specific to the three IARU
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Regions.
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6. Improved CAT control for many rigs, including those controlled
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through Commander or OmniRig.
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7. New keyboard shortcuts to set "Tx even/1st" ON or OFF.
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8. A number of (mostly minor) bug fixes and tweaks to the user
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interface. For example: new behavior for the audio level slider;
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correctly logged QSO start times in certain situations; correct
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control of FT-891/991 and some other radios via rigctld.
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At the time of the v1.8.0-rc1 release the following tasks are yet to
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be completed:
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1. Updates to WSJT-X User Guide.
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2. Sample files for FT8.
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3. Enhanced decoding using AP ("a priori") information.
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4. Signal subtraction and multi-pass decoding.
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5. Option to Auto-respond to the weakest responder to your CQ.
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Installation packages for Windows, Linux, OS X, and Raspbian can be
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downloaded from the WSJT web site:
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http://physics.princeton.edu/pulsar/K1JT/wsjtx.html
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Please send bug reports to either wsjtgroup@yahoogroups.com or
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wsjt-devel@lists.sourceforge.net. Such reports should include a full
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prescription of steps to reproduce the undesired behavior. You must
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be a subscriber to post to either of these lists.
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Brief Description of the FT8 Protocol
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-------------------------------------
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WSJT-X Version 1.8.0 includes a new mode called FT8, developed by K9AN
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and K1JT. The mode name "FT8" stands for "Franke and Taylor, 8-FSK
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modulation". FT8 uses 15-second T/R sequences and provides 50% or
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better decoding probability down to -20 dB on an AWGN channel. An
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auto-sequencing facility includes an option to respond automatically
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to the first decoded reply to your CQ. FT8 QSOs are 4 times faster
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than those made with JT65 or JT9. FT8 is an excellent mode for HF
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DXing and for situations like multi-hop E_s on 6 meters, where deep
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QSB may make fast and reliable completion of QSOs desirable.
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Some important characteristics of FT8:
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- T/R sequence length: 15 s
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- Message length: 75 bits + 12-bit CRC
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- FEC code: LDPC(174,87)
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- Modulation: 8-FSK, tone spacing 6.25 Hz
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- Constant-envelope waveform
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- Occupied bandwidth: 50 Hz
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- Synchronization: 7x7 Costas arrays at start, middle, and end
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- Transmission duration: 79*1920/12000 = 12.64 s
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- Decoding threshold: -20 dB; several dB lower with AP decoding
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- Multi-decoder finds and decodes all FT8 signals in passband
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- Optional auto-sequencing and auto-reply to a CQ response
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- Operational behavior similar to JT9, JT65
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We plan to implement signal subtraction, two-pass decoding, and use of
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a priori (AP) information in the decoder. These features are not yet
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activated in v1.8.0.
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We haven't yet finalized what the three extra bits in the message
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payload will be used for. Suggestions are welcome!
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-- Joe, K1JT, for the WSJT Development Team
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