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| SAQ Grimeton |
Alexander SAQ Grimeton
Grimeton Friendship Association
www.alexander.n.se
In 1924 the construction of Grimeton Radio Station in Sweden was completed and the two transmitters, invented by Ernst F.W. Alexanderson was put into commercial operation. The radio station's call sign was SAQ.
SAQ is the only remaining pre-electronic radio transmitter that has been preserved and is still functional, event though only one of the original two transmitters remains.
UN-Day 2025 transmission
On October 24th, 2025, SAQ is scheduled to air a message to the World, promoting Peace, Unity, and Global Partnerships.
The unique Alexanderson alternator is scheduled for one transmission over the antenna on VLF 17.2 kHz CW.
The Grimeton Radio Station welcomes all visitors to attend the transmission.
To attend one of the transmissions in the transmitter hall, a ticket will be required.
Please see grimeton.org for complete visitors' information.
SAQ transmission schedule
15:20 CEST (13:20 UTC) Live YouTube broadcast begins.
15:30 CEST (13:30 UTC) Start-up of the Alternator.
16:00 CEST (14:00 UTC) Transmission of a message
The Alexanderson high-frequency alternator in operation.
In 1924 the construction of Grimeton Radio Station in Sweden was completed, and the two transmitters, invented by Ernst F.W. Alexanderson was put into commercial operation. The radio station's call sign was SAQ.
SAQ is the only remaining pre-electronic radio transmitter that has been preserved and is still functional, event though only one of the original two transmitters remains.
UN-Day 2025 transmission
On October 24th 2025, SAQ is scheduled to air a message to the World, promoting Peace, Unity, and Global Partnerships.
The unique Alexanderson alternator is scheduled for one transmission over the antenna on VLF 17.2 kHz CW.
The Grimeton Radio Station welcomes all visitors to attend the transmission.
To attend one of the transmissions in the transmitter hall, a ticket will be required.
Please see grimeton.org for complete visitor's information.
Live Video Stream from World Heritage Grimeton Radio Station, Sweden.
Scheduled at 15:20 CEST (13:20 UTC) on Oct 24th, 2025.
Live Video from World Heritage Grimeton Radio Station
The transmission events can be seen live on our YouTube Channel.
Test Transmissions
There may be some test transmissions, preliminary on October 23rd between 13:00 - 16:00 CEST. During the tests, SAQ will be on air for shorter periods of time, when we will be carrying out some tests and measurements.
Your comments are welcome to info@alexander.n.se.
QSL Reports to SAQ
Your QSL reports to SAQ are most welcome and much appreciated!
For guaranteed E-QSL from us,
please report using our
ONLINE QSL FORM.
We can not guarantee that reports by email/mail/bureau will be confirmed.
The online form will be open from October 24th until November 21st.
Amateur Radio Station SK6SAQ
The Amateur Radio Station with the call “SK6SAQ” will be QRV during the day on the following frequencies:
– 3 517.2 kHz CW
– 7 017.2 kHz CW
– 14 017.2 KHz CW
– 3 755 kHz SSB
– 7 140 kHz SSB
QSL reports to SK6SAQ (NOT SAQ) are kindly received via:
- Email to info@alexander.n.se
- or via: SM bureau
- or direct by postal mail link: https://alexander.n.se/en/the-alexander-association/kontact/
Two stations will be on the air most of the time.
Online QSL Form:
Not a member yet ? Then it’s time to join the Alexander team!
We welcome you as a member of the Alexander SAQ Grimeton Friendship Association, to support our non-profit activities in preserving, documenting, and bringing to life the unique Alexanderson alternator from 1924.
As a member, You get a 10% discount on World Heritage Grimeton’s shop and café (not ice cream), and free admission to Alexander's evening displays and to the Alexanderson Day, upon presentation of your membership card. Four times per year, you will receive our online magazine “Alternatorn”, exclusively available only to our members.
Members also get access to our online library with lots of unique historical documents about SAQ and the Alexanderson alternator.
Membership costs SEK 125 / year.
Apply For Membership Now!
Help us keep SAQ Grimeton operational.
Just a small donation will be of great help to us, in our work to keep SAQ in operational condition. Your donation will go to the work of maintaining, displaying and running the historical Alexanderson alternator, as well as passing on knowledge to current and future generations.
*The world heritage site Grimeton is a living cultural heritage. All transmissions with the long-wave transmitter SAQ are therefore preliminary and may be canceled at short notice.
