#grimeton — Public Fediverse posts

24 December 2025: The Very Low Frequency (VLF) transmitter from Grimeton (Sweden) with the call sign SAQ goes on air. Is it possible to receive this transmitter with simple means in the city of Bern? Yes, it is possible.
Antenna: (DIY) three ferrite rods wound with HF litz wire.
DIY up-converter.
Degen DE1103 receiver.
The signal was weak, but it was still possible to copy it.

#SAQ #Grimeton #VLF #SWLing #CW #Morse

Yay! After several years of bad timing I finally managed to build myself an antenna to receive the #Grimeton mechanical radio transmitter #SAQ at only 17.2 kHz!
My Antenna was basically DL1DBC's E-Filed probe (https://dl1dbc.net/SAQ/homebrew_e-field.html ) but build with parts I had on the bench anyway.
So I went to our garden on this frosty morning.
And wow! did not expect such good reception on what is basically audio frequency with such small antenna!

Zu Weihnachten wird es wohl wieder eine Sendung aus #Grimeton vom Alexander Alternator #SAQ geben.

Eine gute Gelegenheit mal in die untersten Frequenzen reinzuhören.

https://dd3ah.de/grimeton/

just watched the live stream of the #SAQ #Grimeton Transmitter for #UNDay 2025

https://www.youtube.com/live/GJ8cY0s7sxw

Wow I tried to copy the poem over #CW via the broadcast but my skills are a little rusty. What a #poem over #cw. TNX ES 73
#radio #sw
1/2

UN Day 2025 SAQ Grimeton VLF transmitter - 14:00 UTC

https://www.youtube.com/watch?v=GJ8cY0s7sxw

#amateurradio #SAQ #Grimeton #VLF

@tubetime somebody heared about the Test QSO of #SAQ ?

Today in Erfurt with long wire antenna to extern USB-Soundcard and https://www.qsl.net/dl4yhf/spectra1.html and also in the VLF webSDR http://websdr.ewi.utwente.nl:8901/ was nothing recieved. Hoping the Alternator works fine abd only some coil problem caused the damaged signal.

We hoping luck for all #grimeton friends and the operators nearby!

CU tomorrow on air

SAQ to air at 100th anniversary on July 2nd 2025

https://mailchi.mp/7215c7447029/alexanderson-day-11039201?e=3884581e8b

#Alexander #SAQ #Grimeton #amateurradio #hamradio

#SAQ im #Grimeton geht anlässlich des 100. Jahrestags seiner offiziellen Inbetriebnahme mit seinem Alexanderson-Alternator auf Sendung:

Mittwoch, 2025-07-02

Zeitplan und weitere Informationen:

https://alexander.n.se/en/celebrate-100-years-with-saq-grimeton/

https://dd3ah.de/grimeton/

#savethedate

Heute vor 50 Jahren starb Ernst Fredrik Werner #Alexanderson.

Er konstruierte den #Maschinensender vom Typ #Alternator, von dem bis heute noch einer in #Grimeton in Betrieb ist.

https://de.wikipedia.org/wiki/Ernst_Fredrik_Werner_Alexanderson

Am Morgen von Heilig Abend gibt es wieder eine Sendung von #SAQ #Alexander aus #Grimeton

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 Christmas message from SAQ.

https://alexander.n.se/en/saq-to-air-on-christmas-eve-morning-dec-24th-2024/

#savethedate #alexanderson