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Tag: Alexanderson

QSL SAQ Grimeton Xmas 2023 on 17.2 kHz

Of the 4 SAQ Grimeton broadcasts I was able to listen to in 2023 this was by far the best reception with a clear CW signal, S4. A week later I received their e-QSL!

QSL SAQ Grimeton Christmas 2023
e-QSL for the SAQ Grimeton Christmas Eve morning transmission 2023

SAQ Grimeton is a former wireless telegraph station in Sweden. It generates radio signals using an AC generator (called an alternator) designed by the Swedish engineer Alexanderson. This technology was used prior to the development of vacuum tube oscillators. You can learn more about the history of this station and its planned transmissions on the website of the Alexander assocation.

Next SAQ transmission 24th december

QSL SAQ Grimeton Sweden
e QSL from SAQ for UN-day 2023 transmission

On Christmas Eve morning, Sunday December 24th 2023, SAQ Grimeton is scheduled to be on the air, to send out the traditional Christmas message to the whole world, using the 200kW Alexanderson alternator from 1924, on 17.2 kHz CW.

Program and transmission schedule:
08:00 CET (07:00 UTC: The transmitter hall at World Heritage Grimeton is opened for visitors.

Transmission & YouTube Live stream:
08:25 CET (07:25 UTC): Live stream on YouTube begins.
08:30 CET (07:30 UTC): Startup and tuning of the Alexanderson Alternator SAQ.
09:00 CET (08:00 UTC): Transmission of a message from SAQ.

Test transmissions
We are planning to carry our some test transmissions on Friday, December 22nd, approximately between 13:00 CET (12:00 UTC) and 16:00 CET (15:00 UTC). SAQ will be on the air shorter periods of time during this interval, when we will be carrying out some tests and measurements. Your comments are welcome to

More info on

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