WSJT-X implementeert communicatieprotocollen of “modes” genaamd JT4, JT9, JT65, QRA64, ISCAT, MSK144 en WSPR, evenals een Echo genoemd voor het detecteren en meten van uw eigen radiosignalen die van de Maan worden weerspiegeld. Deze modi werden allemaal ontworpen voor het maken van betrouwbare, bevestigde QSO’s onder extreme zwakke-signaal omstandigheden.

Alles behalve ISCAT gebruiken bijna identieke berichtstructuur en “broncodering”, de efficiënte compressie van standaard berichten gebruikt om minimale QSO’s te maken. JT65 en QRA64 zijn ontworpen voor EME (“moonbounce”) op de VHF / UHF bands; JT65 is ook erg populair en effectief voor wereldwijde QRP communicatie bij HF. JT9 is geoptimaliseerd voor de LF, MF en HF bands. Het is ongeveer 2 dB gevoeliger dan JT65 terwijl u minder dan 10% van de bandbreedte gebruikt.

Met ofwel JT9 of JT65 zijn wereldwijde QSO’s mogelijk met vermogensniveaus van een paar watt en compromissen van antennes. JT4 en QRA64 zijn geoptimaliseerd voor EME op de VHF en hogere bands, en vooral de microgolfbanden van 2,3 tot 24 GHz. Ten slotte, zoals beschreven meer volledig op zijn eigen pagina, implementeert de WSPR-modus een protocol dat is ontworpen voor het onderzoeken van potentiële voortplantingspaden met low power transmissies. WSPR is nu volledig geïmplementeerd binnen WSJT-X, inclusief automatische bandhopping.

Het biedt flexibele controle op bijna alle moderne transceivers. Upgraden van WSJT-X versies 1.4, 1.5, 1.6, 1.7 en 1.9.1 zullen naadloos zijn; Er is geen noodzaak om een vorige versie te verwijderen of bestanden te verplaatsen. Als u upgraden van WSJT-X v1.3 moet u uw logbestanden naar een nieuwe locatie kopiëren en uw instellingen opnieuw invoeren.

 

Quick-Start Guide to WSJT-X 2.4.0 Dutch: https://physics.princeton.edu/pulsar/k1jt/wsjtx-doc/wsjtx-main-2.4.0_nl.pdf

 

Changelog:  

WSJT-X 2.4.0 General Availability Release adds new Q65 mode
functionality and decoder optimizations and repairs several defects
and regressions discovered in the RC4 and v2.3.1 GA releases. Since
the release candidates documented below this final release includes
the following enhancements and defect repairs.

 - On MS Windows WSJT-X now ships with a DLL version of the Hamlib
   library, specifically Hamlib version 4.2. This should allow Hamlib
   bug fixes to resolved by the user replacing the DLL with an updated
   version.

 - Repair a defect with own call decode highlighting when callsigns
   with a common root are decoded.

 - Q65 message averaging correctly disabled as be menu option.

 - Repair a regression with missing timestamps in AlL.TXT for the
   MSK144 mode.

 - Repair a defect in the selection of working frequencies matching
   the current band and mode combination.

 - WSPR band hopping mode now generates a tune up tone for bands where
   it is scheduled to transmit.

 - Repair a long standing defect per band tune and Tx power level
   memories.

 - More flexibility for inputting calls into the DX Call field,
   leading and trailing white space characters are allowed but
   ignored.


	        Release: WSJT-X 2.4.0-rc4
	               Mar 26, 2021
	        -------------------------

WSJT-X 2.4.0 Release Candidate 4 adds new Q65 mode functionality and
decoder optimizations and repairs several defects and regressions
discovered in the RC3 and v2.3.0 GA releases.

 - Correct a problem with display of Q65 sync curves for submodes
   Q65-120x and Q65-300x.

 - Audio frequency and decoded message are now saved for up to 100
   most recent Q65 decodes.  Subsequent double-click on waterfall will
   search the list for the clicked frequency +/- 10 Hz, recover
   "DXCall" from the mosr recent decode there, and attempt a decode at
   that frequency with full "q3" sensitivity.

 - Use new ADIF recommendations for Q65: mode=MFSK, submode=Q65.

 - If "Single decode" is unchecked, look for Q65 decodes from
   accumulated average even after obtaining a single-sequence
   decode at selected Rx Freq.

 - For data read from .wav files, display the original UTC (derived
   from file name) on the waterfall instead of current UTC.
   
 - Protect against bounds errors caused by unusual settings on the
   Wide Graph.

 - Correct a problem with Split operation in FT4 mode.  Thanks to
   JG1APX.


	        Release: WSJT-X 2.4.0-rc3
	               Mar 15, 2021
	        -------------------------

WSJT-X 2.4.0 Release Candidate 3 adds new Q65 mode functionality and
decoder optimizations; repairs defects and regressions discovered in
the RC2 and v2.3.0 GA releases.

 - Repaired a memory corruption related to display of Q65_Sync,
   particularly nasty on macOS.

 - Q65 now dissplays two sync curves: orange for the current sequence,
   red for the accumulated average.

 - Behavior of "Save decoded" has been corrected.

 - Repaired a defect that caused crash when displaying the Wide Graph
   with lower frequency limit set to 0.

 - Program no longer terminates a transmission when Settings is
   closed.

 - Program no longer forces TxFreq to 700 or 1000 Hz when entering Q65
   mode or closing Settings.  Instead, it highlights TxFreq with red
   background when its value should be 700 Hz but is not.

 - Program displays a warning label if a contest mode is active in Q65
   mode.

 - Many updates to User Guide, mostly related to Q65.

 - Repaired a regression that disallowed a new QSO initiation after an
   abandoned QSO.


	        Release: WSJT-X 2.4.0-rc2
	               Mar 6, 2021
	        -------------------------

WSJT-X 2.4.0 Release Candidate 2 adds new Q65 mode functionality and
decoder optimizations; repairs defects and regressions discovered in
the RC1 release.

 - Q65 sample .WAV files added.

 - Repair a defect that caused WSJT-X to crash when launched from an
   icon on macOS.
   
 - Repair a crash when using the JT4 mode.

 - Sequencing improvements to hold transmitted signal report fixed
   during a QSO.

 - UI translation updates tnx to Sze-to, VR2UPU, and Michael, 5P1KZX.

 - Enable the "Call 1st" option for Q65.

 - Improved Q65 message averaging that linearly averages the first 4
   sequences and averages exponentially thereafter using a
   time-constant of 4 sequences.

 - Improved macOS post-install instructions, tnx to John, G4KLA.

 - Enhanced Q65 simulator that generates file names compatible with
   message averaging, tnx Charlie, G3WDG.

 - Q65 simulator option to generate single tone waveforms, tnx to
   Charlie, G3WDG.

 - Better suppression of birdies in the Q65 decoder.

 - Blank Q65 decode messages removed.
 
 - Automatic low Tx audio offset for the widest Q65 modes to keep Tx
   signal in transmitter passband, tnx to Charlie, G3WDG.

 - Improved SNR estimates for Q65 mode.

 - Decode depths Fast/Normal/Deep are now identical in Q65 mode.

 - "Save decoded" is now enabled for Q65 mode.

 - The obsolete ISCAT mode has been removed.


Upgrading from a previous version will be straightforward.  There is no need to uninstall or move any files.  If you want to make sure to  have the latest list of default working frequencies, go to File Settings Frequencies, right-click in the Working Frequencies list, and select Reset.

 

Besturingssystemen:  Windows XP tot Windows 10, Linux, OS X
Website: https://physics.princeton.edu/pulsar/k1jt/wsjtx.html
Download: https://physics.princeton.edu/pulsar/k1jt/wsjtx.html
Licentietype: Freeware
Bron: https://physics.princeton.edu/pulsar/k1jt/index.html

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