CQ WW logs, 2005 - 2015

The logs for the 2015 running of the CQ WW CW contest are now available from CQ. This means that logs from the period 2005 to 2015 are now available for both SSB and CW.

As before, I have created a compressed file that contains all the cleaned QSO lines from the Cabrillo files from all the logs for all the years for which data are available. The MD5 checksum of this file is: 84864c3d7a7f80653243a35ae014f0dc.

I have also created an augmented file, in compressed format, that adds useful data to each QSO. Each QSO line in the augmented file includes an additional four columns, with the following meanings:

  1. The letter "A" or "U" indicating "assisted" or "unassisted"
  2. A four-digit number representing the time if the contact in minutes measured from the start of the contest. (I realise that this can be calculated from the other information on the line, but it saves a lot of time to have the number readily available in the file without having to calculate it each time.)
  3. Band
  4. A set of eight flags, each encoded as T/F: 
    • a. QSO is confirmed by a log from the second party 
    • b. QSO is a reverse bust (i.e., the second party appears to have bust the call of the first party) 
    • c. QSO is an ordinary bust (i.e., the first party appears to have bust the call of the second party) 
    • d. the call of the second party is unique 
    • e. QSO appears to be a NIL 
    • f. QSO is with a station that did not send in a log, but who did make 20 or more QSOs in the contest 
    • g. QSO appears to be a country mult 
    • h. QSO appears to be a zone mult
The MD5 checksum of this file is: f2ab0dc3af3a4b5ed3f1846953c4d03b.
Note that the flags in the augmented data are calculated from the raw data independently of CQ. This is because:
  1. for reasons I cannot guess, CQ does not make the actual scoring code available ;
  2. the checklogs are not public, and hence represent additional data that CQ can use in determining the values of the flags. 

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