About Club Log

Introduction by Michael G7VJR

Club Log is a web-based application that uses a large database to analyse amateur radio log files, which are uploaded by users all over the world. Using the logs, it is possible to offer band-mode league tables, efficient log search tools, analysis for DXpedition planning purposes and most wanted lists for DXCC entities (including by date, band or mode for example).

There is a great deal of information that can be mined and analysed in a standard ADIF file. Club Log can provide empirical propagation charts, and give back to its users the ability to find "wanted" DX spots, identify QSLing gaps and perform other analysis of their logs which might be hard to do with normal logging software. Through Club Log, I also host online log search systems for significant DXpeditions.

One of the driving principles of Club Log is to store as many QSOs as possible, as this makes the reports and statistics more meaningful and representative. Everything in Club Log depends upon analysing real QSOs, and or this reason I am very grateful to everyone who participates. If you have not joined yet, I warmly invite you to sign up and join the action! It is completely free.

Acknowledgements

I am helped by Alan, 5B4AHJ, who maintains very high quality lists of exceptions and callsign information in Club Log. This is a huge job that requires a great deal of careful research. Currently, the list comprises 3,131 prefixes and 6,311 exceptions. These lists dramatically improve the quality and usefulness of the database. Thanks Alan.

Marios 5B4WN wrote and now maintains the innovative expedition tools, so popular with DXers the world over. These tools were first used by the Five Star DXers, and were originally inspired by features in John G3WGV's Star Software suite. Marios' work is also in evidence in the propagation tool, which is a fascinating way to explore DX paths using empirical information. Thanks Marios.

Dave G3NKC looks after the zone exceptions database in Club Log. Just like DXCCs, zones can be calculated from callsigns but there are many exceptions, and special date ranges. By researching these special cases Dave helps avoid obvious gaps and problems. Drop him a note if you find a new case!

Lastly, I am grateful to Robert HB9BZA for allowing me to use his LoTW database to add an extra layer of detail to Club Log. 34,349 calls are identified using this database.

Helping with Club Log

The best way to help is to encourage more users to join, and to give them your support and assistance on the Club Log reflector.

As Club Log is now fairly large it does require some significant equipment to function, so if you wish to make a donation I would be very grateful. I put donations towards the upkeep of the hardware and networks, and appreciate every bit of help, small or large.

Please click here to see a list of donors - thank you guys!

APIs and Developer Information

If you are a software developer, you can download the entire Club Log exceptions and prefix lookup data here: http://www.clublog.org/cty.xml.gz (GZIPped, 150kb, updated daily). You can download the XSD schema here.

You can also query Club Log to obtain an ADIF country code for a particular callsign, using a simple HTTP query. Please read the tips for more details.

The Club Log XML file is free but it would be appreciated if you could help promote Club Log if you incorporate this data into your logging program. Thanks!

Michael G7VJR - Author of Club Log

Alan 5B4AHJ - Database Manager

Marios 5B4WN - Expedition Tools

Dave G3NKC - Zones Manager

  SSB: 41.54%
   CW: 46.36%
Other: 12.10%