End of NDB BIA on 474kHz

Sadly the NDB BIA on 474kHz in service at Rzeszów Airport has been turned off.

For many years the carrier at 474kHz and the sidebands at 473kHz and 475kHz were used by polish radioamateurs to check their 630m equipment. Foreign radioamateurs used this NDB to judge the propagation to Poland.

This will change the way we work in the CW segment in the 630m band in Europe. Up to now we had to use 472-472.7kHz or around 473.5kHz, and a narrow filter was necessary. After BIA is switched off we can use the whole 472-475kHz segment, also with wider filters.

NDB BIA 474kHz antenna

VO1NA on 8270Hz received in Warsaw

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:

https://klubnl.pl/wpr/en/index.php/2017/12/26/pierwszy-odbior-sygnalu-8270hz-pomiedzy-kanada-a-polska/

 

You can also see a very strong signal from Stefan DK7FC on 8270.0Hz

 

SAQ Christmas 2018 transmission on 17.2 kHz

Christmas  transmission from SAQ on 17.2kHz, 24 december 2018 8:00 UTC

Received at SQ5BPF QTH Warsaw/Poland KO02md.

E-field active antenna, vlfrx-tools and Spectrum Lab receiver

The message was:

CQ CQ CQ DE SAQ SAQ SAQ = THIS IS GRIMETON RADIO/SAQ IN A TRANSMISSION USING THE ALEXANDERSON 200KW ALTERNATOR ON VLF 17.2KHZ. = WE WISH YOU ALL A MERRY CHRISTMAS AND A HAPPY NEW YEAR = SIGNED THE WORLD HERRITAGE AT GRIMETON AND THE ALEXANDER VETERANRADIOS VAENNER ASSOCIATION = FOR QSL INFO PLEASE READ OUR WEBSITE WWW.ALEXANDER.N.SE WWW.ALEXANDER.N.SE = DE SAQ SAQ SAQ SK

Radiostacja Babicka wpisana do rejestru zabytków

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

http://radiostacjababice.org/