WSJT-X ChangeLog ------------------------------------------------------------------ We are getting close to a stable "Version 1.0" release of WSJT-X. At that point program features will be frozen temporarily while we concentrate on any necessary bug fixes and improvements to the decoder. If you have bug reports on version 0.95 r3251, or important feature requests, please send them to us at wsjtgroup@yahoogroups.com as soon as possible! May 2, 2013: v0.95, r3251 ------------------------- 1. The "band change" function is executed whenever the Band combobox is activated, even if the selected band has not changed. 2. The program does not set rig mode. That task is left to the user. 3. Time interval for polling rig frequency is now a user parameter on the setup screen. I set mine to 1 second, which works fine with the Kenwood TS-2000. Set it to 0 if you want no polling for frequency (which means unidirectional CAT control from program to radio). Choose something like 10 s for the K3. 4. Much new work on the WSJT-X User's Guide, which is approaching its final form for Version 1.0. Please read it and tell us about anything you find unclear or missing! These changes address nearly all of the CAT issues found by a few users -- those with K3, IC-746, IC-706, in particular. One additional piece of advice when running WSJT-X in Windows: connect and turn on the radio and any interface equipment before starting WSJT-X, and exit the program before turning such equipment off. April 29, 2013: v0.95, r3243 ---------------------------- 1. Now has bi-directionsl CAT control using direct calls to hamlib functions. Highlights displayed dial frequency with red background if frequency differs from nominal for the selected band by more than 100 kHz. (Is there a more useful or logical condition to flag?) Small red square between Band selector and Dial Frequency display to indicate that CAT control is active. Mode is set to USB on startup. (Note: CAT control diagnostics are presently rather rudimentary, we're still working on this. Feedback is welcome!) 2. New controls on Setup | Configuration screen: - RTS/DTR OFF -- needed by K2 and maybe other radios - Data / Mic -- select CAT-control PTT type - Test CAT Control -- try settings before returning to main screen - Test PTT -- try settings for toggling PTT On/Off 3. Help menu now provides displays of Keyboard Shortcuts (quick access via F3) and Special Mouse Commands (F4). 4. Option "Setup | Advanced | Allow multiple instances" enables the use of more than one instance of WSJT-X for special applications. (The program must be copied into and run from different directories.) 5. No posts to PSK Reporter if band was changed during the reception period. 6. Improved behavior of Tune button. 7. Improved inter-process communication between WSJT-X and JT-Alert-X. 8. Better interaction between "Report" spinner control and Tx messages. 9. Removed the NB checkbox and slider. (Has anyone found these useful?) 10. New buttons on main window: "Tx=Rx" sets Tx frequency to current Rx frequency; "Rx=Tx" does the opposite. 11. Log QSO confirmation window is now "non-modal": you can keep it open and still access controls on the main window. 12. Tab-order has been rationalized on most screens. 13. Dial frequency and mode written to file ALL.TXT. 14. Double-click on decoded line sets Tx message #3 if message has the form "MyCall Call2 rpt". 15. Bug causing occasional, seemingly unpredictable program crashes has been fixed. 16. The WSJT-X User's Guide is somewhat closer to being complete. User feedback on the Guide will be most welcome. What is unclear? What is missing? April 17, 2013: v0.9, r3195 --------------------------- 1. Sorry, the CAT control changes in r3187/3188 were a dismal failure in many stations, and they introduced other bugs as well. This revision goes back to uni-directional CAT control: the program can set the radio's dial frequency and do T/R switching, but that's all. The band setting is not reset on program startup. 2. Logic for the Tune button has been corrected. 3. For Linux compile-it-yourself enthusiasts: the interface to PSK Reporter is now working undel Linux. April 16, 2013: v0.9, r3188 --------------------------- 1. CAT control now reads and follows changes in radio's dial frequency. Readout gets red highlighting if radio is on wrong band. On program restart, band is reset to the last selected band. 2. New "Tune" button generates an unmodulated carrier. Toggle button a second time to turn Tx off. 3. Added labels at top of "Tab 2" and enlarged the text entry fields. 4. Fixed the broken logic for "Runaway Tx watchdog". 5. Fixed "Prompt me to log QSO" so that it no longer requires also setting "ID after 73". 6. Additional changes of (eventual) interest to Linux users. Code for sending spots to PSK Reporter now in place. April 13, 2013: v0.9, r3166 --------------------------- 1. Option to send Tx messages (highlighted in yellow) to the QSO window. 2. Prevent starting a transmission more than 24 sec into a Tx period. 3. "Setup | Options" changed to "Setup | Configuration". 4. Type Alt-V to save the most recently completed Rx file. 5. Fixed bug that truncated Rx messages to 16 characters. 6. Internal program changes that should provide better user diagnostics when necessary at program startup. April 11, 2013: v0.9, r3157 --------------------------- 1. Maximum size of several window areas increased to accommodate system fonts set larger than default. 2. New behavior of Erase button: click once to erase the left (QSO) window, twice to erase both decoded text windows. 3. Keyboard shortcuts: Alt-D: decode again at QSO frequency (same as clicking the Decode() button) Shift-D: do another full decode in both windows Alt-E: Erase() Ctrl-F: Edit the free text message box Alt-H: Halt Tx() Alt M: Monitor() Alt-N: Enable Tx() Alt-Q: Log QSO() Alt-S: Stop() 4. New Setup options: "Tx disabled after sending 73" and "Runaway Tx watchdog". 5. Fixed bug in saving the "report received" for logging purposes. 6. Corrected the logic for "Runaway Tx watchdog". 7. Fixed bug that truncated characters 17 and 18 of decoded messages. April 10, 2013: v0.9, r3151 --------------------------- 1. Blank line between decoding periods is now in the right-hand text window, where it should be. 2. Decoding range defined by fMin and fMax is now enforced. April 9, 2013: v0.9, r3143 -------------------------- This minor release restores the decoding speed of earlier revisions and corrects a bug that prevented sending CW ID. April 9, 2013: v0.9, r3142 -------------------------- This version of WSJT-X has a number of significant changes. Please read the following notes carefully. Also -- even if you are already familiar with WSJT-X -- be sure to read the updated WSJT-X User's Guide at http://www.physics.princeton.edu/pulsar/K1JT/WSJT-X_Users_Guide.pdf , especially pages 3 and 4. Changes since v0.8 r3118 include the following: 1. There are now two scrolling windows for decoded text. The left window contains decodes only from close to the designated QSO frequency. The right window includes signals over the full decoding range. 2. An alternative set of controls is now available for generating and selecting Tx messages. Some may find these more convenient to use than the Tx1 through Tx6 message boxes. 3. A number of new user options are available on the Setup menu: - Blank line between decoding periods (right window only) - Clear DX Call and DX Grid after logging QSO - Display distances in miles - Runaway Tx watchdog - Background colors for left window - Double-click on decoded message sets Tx Enable 4. New or changed on-screen features - "Tol" replaced by fMin and fMax on waterfall screen (see User's Guide) - Spinner control for signal report - On waterfall scale: green marker for Rx freq, red for Tx. blue for decoding range 5. New behavior - "CQ DX" is now treated properly when decoded line is double-clicked - Message formate for compound callsigns (e.g., PJ4/K1ABC, G4XYZ/P) are now handled correctly. (Some restrictions apply, and will be spelled out in the completed User's Guide.) - Decode button now causes a decode only at the specified Rx frequency. - Click on waterfall spectrum sets Rx freq; double-click also invokes decoder (as though Decode button had been clicked). CTRL-click moves both Rx and Tx freqs. - Amplitude at end of transmission is ramped down to prevent a final key click. 6. The following bugs have been fixed: - Logic error in decoder - Certain non-standard Tx messages could cause a program crash. - Certain (rarely used) messages did not pack/unpack correctly April 2, 2013: v0.8, r3118 -------------------------- 1. Improved interface to program JT-Alert, by VK3AMA. 2. The LogQSO confirmation dialog no longer blocks the GUI updating process. 3. A blank line with gray background separates the decoded text lines for each new invocation of the decoder. 4. New suggested default frequencies: 5.357, 18.104, and 24.918 MHz. Be sure to edit these entries on the 'Default Frequencies' tab of the Setup screen. (When you have done this once, the new values will be remembered.) 5. The LogQSO button now does nothing is the 'DX call' entry field is blank. 6. Several minor bugs were fixed. March 27, 2013: v0.8, r3113 --------------------------- 1. Bug fix: VOX control of T/R switching now works. 2. Potentially useful error messages now appear when CAT control has failed. 3. Added an instruction on the Log QSO confirmation screen. 4. Clear the DXcall and DXgrid entries after logging a QSO. March 26, 2013: v0.8, r3112 --------------------------- Edson Pereira, PY2SDR, recently became an active contributor to this open-source project. Edson and I have been very busy over the past few days! WSJT-X revision 3112 has many changes and new features. 1. The GUI layout has been adjusted and optimized. 2. CAT control is now operational, offering optional control of your radio's dial frequency and T/R status. Go to the Setup | Options window to select the necessary parameters. 3. CW ID has been implemented. You can have your ID sent after a fixed time interval, or automatically when you transmit a "73" or free text message. 4. Default dial frequencies are available for each band on a new tab on the Setup | Options window. Please note: some of these frequencies are probably wrong! You can edit them as needed. (Please let us know if the original values are inconsistent with actual practice on any band.) 5. Several new options appear on the Setup menu. Try them! 6. Azimuth and Distance information is displayed whenever a valid grid locator appears in the "Dx Grid" box. 7. The decoder has again been adjusted for better compromise between sensitivity and decoding time. 8. The User's Guide is out of date, and needs work. We hope to get to that task soon. 9. Very important for some would-be users: WSJT-X now runs properly under Linux. We haven't made a package yet, so for now you must compile your own. If you don't know how, we hope to be set up to make packages before too long. 10. If you know someone who might be interested in contributing to the development of WSJT-X and related projects, please send him/her our way! We're especially looking for someone interested in producing packaged Linux distributions -- for example, *.deb or *.rpm packages, but other programming help is also wanted. As always: please report bugs, and don't be bashful about sending us your feature requests! March 22, 2013: v0.7, r3071 --------------------------- 1. Correct a bug that (still) allowed display of previous decodes when nothing new was decoded. 2. Add a user confirmation screen activated when you click Log QSO. This lets you edit or add information before it is written to the ADIF file. 3. Tx message macros and now available. Configure them on the Setup window. They are invoked as a pop-up menu by right-clicking on the Tx5 message window; then select the desired message by left-clicking on the desired message. March 20, 2013: v0.7, r3063 --------------------------- 1. Add Frequency to the generated ADIF records. 2. Correct a decoder bug that led to duplication of previous output when nothing new was decoded. March 19, 2013: v0.7, r3061 --------------------------- 1. Allow Windows COM port numbers up to 99. 2. Replace status files wsjtx_qrg.txt and wsjtx_txcall.txt with a single file, wsjtx_status.txt. 3. Combine wsjtx_rx.log and wsjtx_tx.log into a single file ALL.TXT. 4. "Log QSO" now writes a file in ADIF format. 5. Starting to implement popup macros for Tx message #5. 6. Big improvement in decoding speed. *** More changes to come! Please report any problems, especially *** with the ADIF-format log. March 12, 2013: v0.6, r3046 --------------------------- 1. Decoded calls can now be uploaded to the PSK Reporter web site. Check the box "Enable PSK Reporter" on the Setup screen, and go to http://pskreporter.info/pskmap.html to see the spots. Be sure to enter your "Dial Frequency (MHz)" at lower right of the Wide Graph window. (Rig control features are yet to come...) 2. Added some interfaces to permit use with the program JT-Alert, by VK3AMA. Look for this capability in the near future. March 6, 2013: v0.5, r3038 -------------------------- 1. Selection of Current/Cumulative/JT9Sync for the 2d spectral display changed to a combobox. 2. Double-click on decoded text does not change frequency settings if first decoded call is MyCall. March 1, 2013: v0.5, r3026 -------------------------- 1. The horizontal scale of 2d spectra (e.g., the "red curve") is now correct when the user has selected FFT Bins/Pixel > 1. 2. Double-clicking on a decoded text line now selects the second callsign independent of exactly where one has clicked on the line. In addition, it sets the selected frequencies (both Tx and Rx) to the frequency of the decoded transmission. December 11, 2012: v0.5, r2791 ------------------------------ 1. Messages of the form "CQ DX K1ABC" are now supported. November 30, 2012: v0.5, r2788 ------------------------------ 1. A bug was introduced when support for positive signal reports was added. It could cause a program crash when certain free-text messages were composed for transmission. The bug has been fixed. 2. In the slower JT9 sub-modes, the UTC listed on decoded text lines has been changed to the start time of the Rx sequence, rather than the time of the final minute. 3. The waterfall's "Auto Zero" button had no function, and has been removed. 4. In previous revisions the installer put a number of DLLs into the Windows system directory, normally C:\Windows\System32. This revision installs the DLLs to the WSJT-X installation directory. November 29, 2012: v0.5, r2786 ------------------------------ 1. In r2783, the companion program jt9.exe (started automatically when you start WSJT-X) was a CPU hog for no good reason. This was an oversight on my part, and the bug has been corrected. 2. The program should now run correctly if installed in a directory whose name contains embedded spaces. (Under Vista and Win7, however, it's still not a good idea to install WSJT-X into C:\Program Files, because of restricted write permissions there.) 3. In r2783 and earlier, stopping a transmission by toggling to "Auto OFF" would terminate Tx audio and release PTT almost simultaneously, possibly hot-switching your T/R relay(s). This has been corrected so that proper sequencing takes place. November 28, 2012: v0.5, r2783 ------------------------------ This revision has an unusually large number of changes relative to the previous release, v0.4 r2746. These changes include: 1. PTT control via COM ports COM10 and higher is enabled. 2. Improved decoder performance: higher speed as well as better chances of success. Moderate amounts of frequency drift are detected and compensated. Computed S/N values are more reliable. Time offsets from -2.5 to +5 s are now supported, which makes JT9 usable for EME. (EME tests on 144 MHz have been successful, and performance on that propagation mode appears to be good.) 3. Tx Frequency now tracks the selected QSO Frequency (unless you hold down the CTRL key when setting QSO Frequency via mouse-clicks or the F11/F12 keys). 4. Decoded text containing "CQ " is highlighted with green background; text including "MyCall" is highlighted in red. 5. In previous versions, signal reports were required to be in the range -30 to -01 dB. In v0.5 r2782 the range has been extended to -50 to +49 dB. There is backward compatibility for the range -30 to -01, but reports in the range -50 to -31 and 0 to +49 will NOT be decoded correctly by previous program versions. It is important to upgrade! 6. Items "Save Synced" and "Save Decoded" are now implemented. 7. UTC Date, JT9 submode, and a parameter related to the decoding procedure are now included in file wsjtx_rx.log. 8. Editing of Tx messages (in any of the six Tx message boxes) is complete when you hit "Tab" or "Return". The message is then parsed and converted to the form in which it will be displayed if decoding is successful. Free-text messages are trimmed to 13 characters and highlighted with a pink background. 9. The most recent transmitted message is displayed in the right-most label on the status bar. This can be useful if you have lost track of where you were in a QSO. 10. By default, the program now starts with Monitor ON. An option on the Setup menu allows you to select "Monitor OFF at startup". 11. Better scaling is provided for the red "JT9 Sync" curve. Note that JT9 signals in the active sub-mode should appear in this plot as a bump of width equal to the total signal bandwidth, with a narrow and slightly higher bump at the left edge. The narrow bump is the frequency of the Sync tone, which is defined as the nominal frequency of the JT9 signal. 12. Basic QSO information is now written to file wsjt.log when you click the "Log QSO" button. 13. The WSJT-X User's Guide has been updated. 14. Other known bugs have been fixed. There will probably be new ones! When you find one, or if you know of any old ones that have NOT been fixed, please send me email. Summary of Present Status ---------------------------------------------------------------------- I believe that WSJT-X is now a stable and very usable program. Many thousands of QSOs have been made with JT9-1, mostly at HF -- I have made nearly 100, myself. Also a number of QSOs have also been completed at MF, and successful tests have been made on 2m EME, etc. A number of QSOs have also been made with JT9-2. As far as I know the slower modes (JT9-5, JT9-10, and JT9-30) also work correctly. (Certainly they do in my laboratory test setup.) Most people will find these modes too slow for "everyday" use, and they require high frequency stability. It remains to be seen whether they will be widely used. An alternative approach to obtaining improved sensitivity would be to give the decoder an ability to average over several successive transmissions. For example, the average of five JT9-1 transmissions could reach a decoding threshold around -32 dB, only 2 dB worse than a single JT9-5 transmission. Because of QSB, the shorter transmissions may actually succeed in less total time. Stability requirements would be those of JT9-1, much less stringent than those of JT9-5. Program development is not finished, by any means. I will be grateful for your feedback on performance issues, as well as your "wish-list" of features to be added. As always, example recordings of files that you think should have decoded, but did not, will be much appreciated. November 16, 2012: v0.4, r2746 ------------------------------ Changes from v0.4 r2731 include the following: 1. Valid signal reports are now generated by double-clicking on a callsign in the decoded text window. 2. Consecutive spaces in a Tx message are now collapsed into a single space. 3. Decoding speed is much improved, especially when strong (possibly non-JT9) signals are present and "Tol" is set to a relatively large value. 4. Scaling of the "JT9 Sync" plot (red curve) is more reasonable. 5. Layout of widgets on the main window has been improved. 6. Several minor bug fixes. November 14, 2012: v0.4, r2731 ------------------------------ A number of known bugs have been fixed, and the JT9 decoder is significantly improved. Among other improvements, the program is now much less fussy about timing issues. November 6, 2012: v0.3, r2717 ------------------------------ Changes from r2713 include the following: 1. A bug in the decoder that led to erratic behavior (failed decodes) under certain conditions has been corrected. Decoding is now much more reliable. 2. A valid algorithm is now used to calculate S/N values for received JT9 signals. 3. The header format of recorded *.wav files has been corrected. These files will now play correctly in Windows programs that expect the standard header. November 6, 2012: v0.2, r2713 ------------------------------ Changes from r2711 include the following: 1. Updates to the Quick-Start User's Guide, http://www.physics.princeton.edu/pulsar/K1JT/WSJT-X_Users_Guide.pdf 2. Double-click on waterfall now sets Tol to a reduced (mode-dependent) value. 3. Tol is saved and restored on program restart. 4. A "digital gain" slider was added next to the green-bar audio level indicator. With the slider at mid-range, the scale reads correctly in dB above the least significant bit of 16-bit audio data. 5. There is now a test that rejects at least one type of data that is sufficiently corrupt to cause Eddie's best friend, the message "15P6715P67WCV". 6. Several minor tweaks to improve decoder performance. 7. The program now starts with Monitor OFF. You must click Monitor to start accepting audio. For some types of testing, this may be an advantage. This startup condition may be changed again, in the future. October 31, 2012: v0.2, r2711 ----------------------------- Three significant changes since r2706: 1. Three options are now provided on the "Decode" menu, controlling the "depth" of the decoding process. For most purposes I suggest you should use "Normal", but feel free to experiment with the others. 2. Decoding of multiple signals in one Rx interval has been improved. 3. Handling of strong signals has been improved. October 309, 2012: v0.2, r2706 ------------------------------ Changes since r2702 include the following: 1. The problem with "ghost" signals is fixed. 2. A problem causing very long decode times under certain circumstances has been fixed. Please note: decode times on any recent PC should no more than a few seconds! 3. I have re-directed the program's fatal error messages so they will be sent to the command-prompt window from which you started the program. Please send me full reports on any such messages you observe, preferably with details on how to reproduce the problem. ######################################################################### Some additional information ... 1. Yes, the JT9 modes require good stability in all system oscillators. The present JT9 bdecoder does not attempt to track frequency drifts. Such capability will be added, however. We have been using digital modes for EME for nearly ten years now, at 144 MHz and higher. There are more than 1000 WSJT users on EME, using all kinds of rige. We have learned how to deal with reasonable rates of drift. Surely if we can do these things at VHF, we can do them much more easily at MF and LF. 2. If you're sure that you have seen degraded JT9 performance because of frequency stability issues, don't just complain on the LF reflector. Document your case and send me an example file with a drifting JT9 signal. Making WSJT-X and JT9 better is partly YOUR responsibility! 3. In other ways as well, test files are needed. I can make many tests myself, but I can't foresee all the problems others will have. That's what the "Save All" function is for! In these early tests, always run with "Save All" checked, just in case you will want to refer back to something that happened. You may want to send me the file in question. You can always clean out your "Save" directory by using "File | Delete all *.wav files in SaveDir". I need good examples of signals that fail to decode for any unknown reason. Also some good examples of atmospheric or other impulsive noise, for testing the noise blanker. 4. I have added a page of "Hints for New Users" to the online WSJT-X User's Guide, http://www.physics.princeton.edu/pulsar/K1JT/WSJT-X_Users_Guide.pdf . Please read it! ... and let me know if you find other operational details of WSJT-X that need explanation. This will likely be especially true for those not already familiar with older versions of WSJT. 5. An operational suggestion: In many ways the different JT9 submodes are treated as distinct modes. If you receive a JT9-x signal in a different submode than the one you have selected, you won't decode it. For this reason, if JT9 is to become popular we'll probably need to choose one or two of the submodes for general use, and perhaps assign a narrow slice of the band to each one. Note that "message averaging" in the Rx software can make two or three JT9-2 transmissions as good as one JT9-5 transmission, with the advantage that you will copy sooner if signals are better than required for JT9-5. Message averaging is not yet present in the JT9 decoder... but in future it can be. Again, we have dealt with such issues very effectively on EME -- and can do so at MF/LF, for sure. 6. On the topic of CW, Beacons, WSPR, JT9, etc. I really don't understand what all the fuss is about. Surely there is room for everybody? Maybe I'm just too new here to understand? (Mal, is this mostly just a matter of "Mal being Mal"???) On the HF bands, the WSPR sub-band is just 200 Hz wide. If we did the same on 630 m, the WSPR sub-band would take up less than 3% of the 7 kHz band. If that's too much, we could cut it in half, or even less, and still have enough WSPR space. Moreover, a "slow WSPR", if warranted, would require even less bandwidth. Similar comments apply to JT9. The bandwidth of JT9 signals is significantly less than that of CW, for comparable information rates. There should be enough spectrum for both, even in our narrow MF and LF bands. 7. As for performance comparisons between JT9 and WSPR: WSPR is a mature program, and its decoder has been optimized and tweaked over a period approaching five years. You are playing with JT9 in infancy. With help (as opposed to simple complaints) from users, it will improve rapidly. October 29, 2012: v0.2, r2702 ----------------------------- Changes since version 0.1, r2696 include the following: 1. Sample rate for audio output has been changed from 12000 to 48000 Hz. Tx audio may now be generated at any frequency from 500 to 20000 Hz. 2. The Decoder now tries to decode all synchronizable signals in the "green zone", that is, within "Tol" Hz of the selected QSO frequency. (Before, by default it decoded only the signal producing the highest "sync" value. Other signals could be decoded by manually setting the QSO frequency and reducing Tol as needed.) 3. The user's selected QSO Frequency is now saved and restored on program restart. 4. The problem with re-initialization after changing sub-modes has been fixed. 5. The problem (for some users) of not releasing PTT after end of a transmission has been fixed. 6. The program now writes a log of all decodes to a file wsjtx_rx.log in the wsjtx directory. October 25, 2012: v0.1, r2695 ----------------------------- Initial version of WSJT-X (experimental WSJT) released for testing.