Klub Niezwykłych Łączności
Since a few days one can see a faint line on 8270.0075Hz. This is transmitted by Joe VO1NA from Canada. The distance to Warsaw is 5100km!
Spectrogram with normalized amplitude:
I have received Joe VO1NA in 2017 when he transmitted ebnaut:
You can also see a very strong signal from Stefan DK7FC on 8270.0Hz
Joe VO1NA transmitted on 21 december 2017 at 8270.0075Hz.His transmission was succesfuly received in Warsaw (RX Jacek/SQ5BPF), at a distance of about 5100km. This is the first succesful reception of a signal from Canada in Poland at 8270Hz.
Continue reading “First succesful transmission on 8270Hz between Canada and Poland”
The remains of the Transatlantic Radiostation in Babice/Poland were added to the Register of objects of cultural heritage in Poland. This was the sister station of SAQ.
This was accomplished by Stowarzyszenie Park Kulturowy Transatlantycka Radiotelegraficzna Centrala Nadawcza Association.
News (in polish):
https://tvnwarszawa.tvn24.pl/informacje,news,laczyla-nas-z-ameryka-byla-cudem-techniki-dawna-radiostacja-zabytkiem,248199.html
I made a 17470.1Hz grabber with a GPS reference. QTH at SQ5BPF Warsaw/Poland KO02md.
This is for Stefan DK7FC tests on this frequency.
92.6uHz bins, 1 hour steps.
Direct link:
https://klubnl.pl/wpr/en/index.php/klubnl-pl-grabbers/tymczasowy-grabber-sq5bpf-do-testow-stefana-dk7fc-na-17-4701hz/
In the morning around 08:00 UTC the following transmissions can be received:
Continue reading “VLF transmissions at 22.5kHz 22.9kHz and 23kHz”
I made a 8270Hz grabber with a GPS reference. QTH at SQ5BPF Warsaw/Poland KO02md.
92.6uHz bins, 1 hour steps.
Direct link:
TV program „Było… nie minęło” about the VLF radio station in Babice, broadcasted on Polish Television under the link:
https://vod.tvp.pl/video/bylo-nie-minelo,radiostacja-babice,24533127
Program in polish language
Paul Nicholson has published a list of VLF (and some LF/MF) milestones:
http://abelian.org/vlf/amateur-radio/
It’s interesting to see the pace of advancements in this field. In 2010 receiving a carrier (with lots of power and a huge antenna) 900km away was a big achievement. In 2017 sending a short message using a much smaller antenna is normal.
In 22 and 23 april 2017 Stefan DK7FC did additional test ebnaut transmissions on 6470Hz. Similar to the previous tests, the transmission was decoded as usual by Paul Nicholson (850km) and also by Jacek SQ5BPF (900km). Continue reading “Next tests in the 6470Hz band”
Stefan DK7FC has been recently transmitting on 6470Hz (46km wavelength) from a stationary antenna between two buildings.
The Ebnaut transmissions were received by Paul Nicholson (England) and Jacek SQ5BPF (Poland) at a distance of 900km (IN49IK to KO02MD).
Continue reading “6470Hz transmission by DK7FC succesfuly received at SQ5BPF (900km distance)”