jLog v6.6.4 released

About jLog

jLog is a free Java based Ham Logging program that can run on all major platforms, e.g. Mac OS X, Linux/Unix, Windows, etc. It offers a nice, clean interface and allows efficient entry of QSOs.

Import or Export of data using the standardized ADIF 3 or ADIF 2 formats are possible to easily exchange data with any other Log programs.

jLog is written in Java and needs a Java Runtime Environment (JRE) to run both the installer and the application. JREs are available for all major platforms, either as an integrated part or as an installable option.

jLog V 6.4 – Release Notes

jLog V 6.4 is a new major release with new installers. It requires a full installation using the installers. jLog V6.4 utilizes Java SE 8 (or newer) and cannot run on older versions of Java. The newest update of Java SE 8, 9, 10 or 11 is recommended. Please report any problems to [email protected].

User files and application support files are stored in ‘<HOME>/jLog/save’. The log file format has been changed and logs will be automatically updated.

Make sure you have BACKUP COPIES OF YOUR LOG FILES (i.e the *.jdb-files) stored somewhere else. I recommend that you strongly consider updating the Java Runtime Environment (JRE) before installing the new version (links to the newest versions can be found on jLog’s Java download page). Frequent update of the JRE is generally recommended (Java is being continuously improved!).

New features (V 6)

  • Improved versions of support files (jna.jar, macify.jar)
  • Support for Java 7 and 8 also on Mac OS X
  • Support for international characters in many fields, UTF-8 file format, force ASCII in export?
  • Many new log fields for full support of ADIF 3.0.4 (released in July 2013)
  • ADIF Import and Export in ADX-format (XML)
  • ADIF Import Log Viewer window
  • New frequency and many new Modes and Submodes, e.g. JT9-x
  • More powerful and informative ‘Check for Updates’
  • DX Cluster (Spots) Log improvements
  • More compact Log Dialogue window (more fields in fewer Tabs)
  • New installers based on izPack 5.0.8  New V 6.1
  • Separator before hundreds in main window frequency display  New V 6.1
  • Extra digit for Icom frequencies from radio  New V 6.1
  • US City to County Lookup  New V 6.1
  • eQSL Download and View QSL card  New V 6.1
  • 23 new modes and submodes  New V 6.2
  • Corresponding S/R dates are set when checking S/R in the Main Window  New V 6.2
  • HamQTH lookup added (to be extended later)  New V 6.2
  • Kosovo added  New V 6.2.2
  • Advanced Search adds Gridsquare as a criteria  New V 6.3
  • New installers based on izPack 5.1.3 allows use of Java 9, 10, 11 and 12 for all platforms New V 6.4
  • MSK144 mode as well as FSQCALL and JS9 submodes are added New V 6.4

Errors corrected (V 6)

  • Better font sizing, in particular for Linux
  • Ignore TAB as delimiter in .jdb-files, disallow ‘;’ in text fields
  • New FCC source
  • Adapted to new LoTW format
  • Improved error handling when updating jLog  New V 6.1
  • Degree character corrected  New V 6.1
  • Duplicates removal fixed  New V 6.2
  • Removed lookup in ON6DP QSL Manager file (not updated since 2008)  New V 6.2
  • Miscellaneous minor cosmetic changes  New V 6.2
  • Installer for Linux and Windows supports Java 7  New V 6.2.1
  • Corrected Verification of some modes New V 6.2.3
  • ADX import improvements  New V 6.4

Limitations and known errors

  • Menu buttons does not size properly with Ubuntu Linux 18.04 or 18.10 and Java 11 New V 6.4
    Note: Avoid using openjdk-11 because font scaling fails with Java Swing applications like jLog.
  • Profile relocation using ‘profile.txt’ does not function properly
  • The Help window may display external (Internet) pages improperly. Use an external browser if you experience problems. Help file has not been updated.


Please send comments, suggestions, etc. to [email protected]. Thanks!



Download jLog

jLog can be downloaded from the jLog.org website.