ARRL's Logbook of the World (LoTW) system is a repository of log records submitted by users from around the world. When both participants in a QSO submit matching QSO records to LoTW, the result is a QSL that can be used for ARRL award credit.
To minimize the chance of fraudulent submissions to LoTW, all QSO records must be digitally signed using a digital certificate obtained from ARRL. Obtaining such a certificate requires verification of the licensee's identity either through mail verification (US) or inspection by ARRL of required documentation (non-US).
Software developed by ARRL can be used to convert a log file (in ADIF or Cabrillo file format) into a file of digitally signed QSO data, ready for submission to LoTW.
LoTW began operation on September 15, 2003
Logbook of the World is not a backup or on-line storage of your logs. Computer failures
can and will happen so safeguards must be taken to protect important data. LoTW
users should be in the habit of backing up important files to external media for
safekeeping.
Logbook of the World does not replace paper QSL cards. Many hams you enjoy
swapping and collecting colorful QSL cards and are encouraged to go on with this time
honored tradition in addition to using LoTW. Using LoTW saves QSL card collectors the
hassle of sending cherished mementos to ARRL HQ for verification.
Creating a LoTW account is easy and it’s FREE, click here for details.
I now use Logbook of The World. My entire log has been uploaed and my LoTW is updated on a monthly basis. My log for January is uploaded to LoTW in early February and so it continues through the year.
Posted 14 September, 2011 15:29:25 GMT