Date: May 31, 2024

Time: 10:00 PM MYT (Kuala Lumpur Time)

As of this date and time, the ARRL Logbook of the World (LoTW) is still down. In the world of amateur radio, keeping your QSO logs secure and up-to-date is paramount. When the ARRL Logbook of the World (LoTW) goes down, it can cause concern for many operators. But don’t worry—there are effective steps you can take to ensure your logs are safe and ready for upload once LoTW is back online. Here’s a logical approach to managing your QSO logs during this downtime.

1. Backup Your QSO Logs

First and foremost, creating backups of your QSO logs is essential. You can use various services that support logbook uploads and downloads. Some reliable options include:


ClubLog is a popular online service that allows you to upload and manage your QSO logs. It offers a straightforward interface and reliable backup solutions.


Ham Radio Deluxe Log (HRDLog) is another excellent choice for backing up your QSO data. It integrates well with many logging software programs and offers robust backup features.


For those who are comfortable with version control systems, GitHub provides an excellent platform to store and manage your QSO logs. You can create a private repository and upload your logs for safekeeping.

2. Export and Upload Your Logs

Once you have chosen a backup service, the next step is to export your QSO logs from your logging software. Most logging programs will allow you to export your logs in a standard ADIF format. Here’s how you can do it:

  1. Open your logging software.
  2. Select the option to export your log.
  3. Choose the ADIF format.
  4. Save the exported file to your computer.

After exporting your logs, upload the file to your chosen backup service. Each service will have its own method for uploading files, but generally, it involves logging into your account and following the upload prompts.

3. Prepare for LoTW Recovery

While waiting for LoTW to come back online, there are a few preparatory steps you can take to ensure a smooth transition once the service is available again.

Apply for New Callsign Certificates

If your callsign certificates are nearing expiration or if you need new ones, now is a good time to apply for them. Visit the ARRL LoTW website to initiate the process. Having your new certificates ready will save time once the system is operational.

Re-sign Your QSO Logs

When LoTW comes back online, you will need to apply new certificates and re-sign your QSO logs. This process involves using the TrustedQSL software to sign your logs with your updated callsign certificates. Here’s a brief overview of how to do it:

  1. Open TrustedQSL.
  2. Import your new callsign certificate.
  3. Select your QSO log file.
  4. Sign the log file using the new certificate.

This will ensure that your logs are properly authenticated and ready for upload to LoTW.

4. Upload to LoTW

When LoTW comes back online, you will be ready to upload your signed QSO logs. Simply log into your LoTW account and follow the usual process for uploading logs. By having your logs pre-signed with the updated certificates, you will avoid any delays and ensure your contacts are quickly verified.


While the downtime of ARRL LoTW can be inconvenient, taking these proactive steps will help you maintain the integrity and security of your QSO logs. By backing up your logs to other services, applying for new callsign certificates, and re-signing your logs, you will be well-prepared to upload your data as soon as LoTW is back online. Happy logging, and 73!


An amateur radio operator, Royal Signals veteran, jack of all trades and master of none.

4 thoughts on “ARRL Logbook of the World (LoTW) is Down: Steps to Secure Your QSO Logs”
  1. Good morning,
    I want to be a “visionary”, that is, I intuit, see and predict HI!
    Let’s say that, after many reports of “non-legal” QSOs, and by non-legal I mean QSOs, for example in 160/80m made at 12pm Italian time with a right Pacific station… Arrl was implementing a “software” routine to find those who “made” QSOs using SDR?
    Technically it is not impossible, it just takes time, setting the sunrise and sunset for each country, cross-referencing the data; it just takes time and patience. The software must be partially rewritten and implemented with the new control routines.
    If so we’ll see some good ones… fingers crossed.

    If it had been a hardware and/or firewall technical problem, the matter would have been resolved in 2/3 days.
    Your comments are welcome, 73 Lorenzo

    1. Hi,
      It is not possible but for me it will be massive of work and wasting time and resources.
      Since amateur radio is self dicipline and self regulatory hobby, i’d think that non-legal as a junk and wasting time to think about it.
      Should use dx cluster to the maximum for QSO confirmation.

  2. …amateur radio is self dicipline and self regulatory hobby, if u are an honest and wise person. If u are not honest… think about it. 73!

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