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SAQ transmission on Alexanderson Day
Below are the SAQ videos of the transmitting on Alexanderson’s day (05.07.2020) on VLF 17.2kHz: Two transmissions took place: RX: SQ2BXI (Gdańsk Poland) and Ado (Kosice Slovakia) TNX Ado!
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No SAQ Christmas transmission in 2020
Unfortunately the annual SAQ Christmas transmission has been cancelled in 2020. We would like to wish the a Merry Christmas to the SAQ team and all of our readers. Stay in good health. saq 2020 xmas
View ArticleVLF grabbers reactivation at Warsaw / SQ5BPF
In 2019 i’ve written that the SQ5BPF grabbers will be temporarily offline and should return in winter 2019. Unfortunately this “moment” got extended to august 2021. Now, finally, I’m trying to...
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RSDN stations are active again
After a long period of inactivity the RSDN stations are active again. Right now (12 october 2021) three frequencies are active: 11.9kHz, 12.65kHz, 14.88kHz. This is a hyperbolic navigation system,...
View ArticleSAQ Christmas 2021 transmission on 17.2 kHz
Christmas transmission from SAQ on 17.2kHz, 24 December 2021 8:00 UTC Received at SQ5BPF QTH Warsaw/Poland KO02md. E-field active antenna, vlfrx-tools and Spectrum Lab receiver. On the recording one...
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Data from ELF 82-84Hz observations over a few months has been published
We have published data from observations of the ELF spectrum 80-84Hz (ZEVS) over a period of a few months. The data is avaliable here: https://klubnl.pl/zevs/ Example ZEVS transmission
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Analysis of ZEVS messages
Russia uses radiocommunications in the ELF band to send messages to it’s nuclear submarine fleet. This transmitter it called ZEVS, the frequency is 82Hz (yes: hertz, not kilohertz, not megahertz). For...
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An analysis of ZEVS messages during the russian invasion in Ukraine in 2022
In the last article i’ve written about a method of automatically finding ZEVS trasmissions, and an analysis of it’s messages: Analysis of ZEVS messages Luckiny i have data from 25 August 2021 until...
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Analyzing ZEVS part 2 – 82.0Hz
In previous articles i’ve shown some typical ZEVS messages , and an analysis of the amount of messages per day . This repository has all of the scripts used during the analysis:...
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