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| Grimeton Radio |
The SAQ Grimeton Radio Station in Sweden is scheduled to perform its annual broadcast, also known as Alexanderson Day, on July 2nd, 2025.
This year's broadcast is particularly significant as it marks the station's 100th anniversary. The station will celebrate the centennial of its official inauguration on July 2nd, 1925.
Here is a summary of the planned activities for the SAQ Grimeton Radio Station on July 2nd, 2025:
The station will conduct two main transmissions. The first is scheduled to begin at 10:20 CEST (08:20 UTC) with a live YouTube broadcast, followed by the start-up of the Alexanderson Alternator at 10:30 CEST (08:30 UTC), and the transmission of a message at 11:00 CEST (09:00 UTC). The second transmission will follow a similar schedule, with the YouTube broadcast starting at 14:20 CEST (12:20 UTC), the alternator start-up at 14:30 CEST (12:30 UTC), and the transmission of an anniversary message at 15:00 CEST (13:00 UTC).
Test transmissions are also planned for Tuesday, July 1st, between 13:00 and 16:00 CEST (11:00 - 14:00 UTC) for tuning, tests, and measurements.
The transmissions will be on the Very Low Frequency (VLF) of 17.2 kHz CW, utilizing the historic Alexanderson alternator from 1924, which is a rare example of pre-electronic radio transmitter
You can view the events live on the World Heritage Grimeton Radio Station's YouTube Channel. If you are able to receive the transmission, you can submit a reception report online between July 2nd and July 27th.
Please note that all transmissions are preliminary and may be cancelled.
Previous testing has been observed as:
Managed to hear two tests from SAQ on 17.2kHz this afternoon (1/7)
The first between 1126 & 1207UTC and the second one between 1247 & 1255UTC. (In preparation for tomorrow's broadcasts celebrating 100 years of SAQ.)
A mix of CW IDs, short and longer carrier bursts and pauses. Not sure if there was a third test.
A very good signal by 1255UTC, will send more details to MWL.
(Nick Rank/BDXC)