DISCLAIMER: I have no association with UVB-76 station, neither do I have any clue what is the content I am relaying. I can only assure, that the signal is received on 4.625MHz AM-modulated 900km NW from supposed origin and retransmitted unaltered. In no way can I guarantee this service, nor be considered responsible of any content re-transmitted. The only purpose for this relay to exist is because lot of people who do not have equipment or are located too far from station seem to be interested about listening to it. Should the UVB-76 station- or transmission content owners feel violated in any way, please contact me at uvb76.repeater@gmail.com and we will work it out.

Note, that because of shortwave radio signal propagation specifics the station can be more or less reliably received from around 4pm to 6am GMT on summertime. It is almost 24h audible during the winter, with short "skip-zone" blank-out around 6pm GMT.

The USB feed is considered as main source of audio today, as the voice messages are much better audible there than on the AM stream. However, the buzzer sound from the AM stream is somewhat more pleasant to listen at, so both feeds are kept simultaneously.

Monday, February 23, 2015

Thank You for Helping to Save the Shukhov Tower!

As it appears, the Shukhov radio tower has made it and is now officially preserved as a cultural heritage! 

Russian newspaper Izvestia has reported (August, 18. 2014 already..), that the object "Radio-Tower, 1922, eng. Shukhov, V. G" with registration number 641 has been declared as "cultural heritage of regional importance" and therefore can not be demolished, moved, changed in construction etc. The english news can be read here.

Thank you all for supporting the preservation of one of the legendary landmarks of radio broadcast!

(Picture: http://culture.ru/press-centre/11132)

Quietly Upgrading

Back in 2010 when the UVB-76 Temporary Internet Repeater was set up, the political situation was very different from what it is today. The Buzzer looked like an obscure artifact from cold war past and filled the minds with technology mysticism.

Today, the buzzer seems more .. relevant. We are still not exactly sure of its purpose, but for whatever reasons it got upgraded 4 years ago, it seems to keep doing what its meant for.

And so will be its internet representation, so I am in a process of doing some smaller and larger upgrades to the repeater.

As a first in series, the main signal processing software what captures the signal from radio and processes it to a stream, has been upgraded from relatively old WinradHD to its current offspring HDSDR, version 2.70. The reason was mainly a stability, but as a bonus the 24-hour waterfall has now a nice time scale printed on the left side.

Wednesday, August 27, 2014

Interference source found and eliminated!

Glad to announce that repeater is once again running interference-free!

The irony is that the power supply littering the signal was the very same powering the SDR receiving the buzzer. So for past several months the repeater has basically recorded  his own mess...

Anyway, from now on we have clean signal again and hopefully even better than before thanks to newly installed magnetic loop.

Monday, August 18, 2014

New Antenna for Repeater

As a somewhat late birthday present from Satrian, my SDR radio company, repeater got itself now a brand new magnetic loop antenna!

It is fairly straightforward design made out of water pipes and tuned to 4.625MHz. 

The main advantage over the more classic antenna designs is its directional capabilities. The noise what is hindering the reception for past couple of months is therefore a little less evident, resulting a better SNR now.

Sunday, August 17, 2014

Repeater Maintenance on August 17, 2014

The UVB-76 Temporary Internet Repeater is now more than 4 years old and no significant upgrades have been done since. 
As Buzzer seems to be alive and kicking as always and as the worldwide situation is heating up daily, the time has come to have some upgrades done. 
I will be moving the repeater to other server room today with new magnetic loop antenna already set up, what is supposed to take care of some of the QRM (interference) what has been disturbing the reception for past few months.

The expected downtime is 17.08.2014 from 2.30pm to 4.00pm UTC.

EDIT: Move complete, works nicely at new location!

Friday, April 11, 2014

Help Saving the Shukhov Radio Tower in Moscow

We have all enjoyed the mysteries of radio communication, would it be through unknown signals, number stations or just surfing the shortwaves in hope to find something inspiring. Now it is time to help preserving the very piece of the history of radio.

Please take time and sign the online petition to help saving this beautiful landmark in Moscow!


The tower seems to be falling a victim of real estate development and so far the Russian State Committee for Television and Radio has given in to government and agreed to demolish it.
World leading architects are trying to give a support for those fighting for the tower and signed an open letter for saving the tower. However, any signature worldwide can be a step closer for saving it!

Saturday, January 18, 2014

MoonBounce Serenade: Recording

Here is the recorded audio feed of the concert: