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6020 khz china radio international series#
6020 khz china radio international free#

Shortwave broadcasting is often overlooked as a domestic news outlet.

6020 khz china radio international free#

Posted on Categories history Tags AM, HF, history, Shortwave 9 Comments on Suppression of ideas Shortwave Broadcasting and the free press The free exchange of ideas and information over the internet is something that should be guarded carefully and should not be restricted or censored. Jamming of radio broadcasts is condemned as the denial of the right of persons to be fully informed concerning news, opinions and ideas. It is interesting that the US position in all of this was:Įveryone has the right to seek, receive and impart information through any media and regardless of frontiers. The entire jamming network was hugely expensive to equip and operate, costing several tens of millions of dollars per year.

It is estimated it takes about 20 times the transmitted power to jam any one signal.

Warsaw Pact countries had extensive medium frequency jamming networks.

Ukraine had approximately 300 Jamming transmitter.

Baltic states had 11 jamming stations with approximately 140 transmitters.

After sign off of government stations, Soviet jammers sent a blanketing signal on the IF frequency (most likely 455 KHz) of receivers to effectively block them from receiving any station while USSR government stations were off the air.

These operated in a similar fashion to the groundwave jammers. These were located in Krasnodar, Lvov, Nikolaev, Yerevan, Alma-Ata, Grigoriopol, Sovieck, Novosibrisk, Tashkent, Khanbarovsk, Servdlosk and Moscow (some of these names may have changed). There were some transmitters in the 1,000 KW power range.

There was a skywave jamming network consisting of 13 jamming stations with 10 or more 100-200 KW transmitter in each.

The receiver site possessed lists of frequencies to monitor, when objectionable material was heard, the jamming transmitters were turned on.

Each groundwave jamming station consisted of a transmitter site and a receiver/control site.

There were groundwave jamming centers in eighty one Soviet cities which consisted of approximately 10-15 transmitters each in the 5 KW covering the medium and shortwave frequencies.

The former Soviet Union had the most extensive jamming network of anyone on Earth.

You know what they say about history those that do not understand history are destined to repeat it. It is worth the time if interested in history and radio broadcasting. The video is quite long, and there are stretches of jamming noise that can be annoying, but perhaps that is the point.

It is an interesting look into the extent and expense that governments will go to to suppress counter thought and ideas. It seems to be about ten years old and is a post cold war documentary about the jamming of radio signals by the USSR, Warsaw Pact counties and China. I found this video called Empire of Noise about broadcast radio jamming. Posted on SeptemSeptemCategories history Tags HF, Shortwave 3 Comments on Voice of Russia to cut shortwave WYFR shortwave signing off Sadly, those are the state of affairs in HF broadcasting today. With little or no opportunity to commercialize, it becomes difficult to justify a shortwave operation. Other expense include maintenance on transmitters, buildings, land and antennas. Most stations use greater than 50 KW transmitters, which will very quickly use gobs of electricity, becoming an expensive operation. Minimum power levels in the US are 50,000 watts into a highly directional, high gain antenna.

The economics of HF broadcasting are daunting to say the least.

6020 khz china radio international series#

After a short bit of interval music and a series of beeps counting down to the top of the hour, a man with a deep, sonorous voice came on and said “Zis is Moscow…” It was very dramatic. It was fascinating to me to hear the news from the far away and all too scary Soviet Union. I can remember Radio Moscow being one the first shortwave stations I tuned across on my Uncle’s Zenith Transoceanic shortwave radio. Radio Moscow stamp, courtesy of Wikimedia

It will be sad to see yet another shortwave station pull the plug. Originally known as Radio Moscow, it has been on the air continuously since 1922. The Voice of Russia ( Голос России, Golos Rossii) will cut its shortwave service as of January 1st, 2014. Another government shortwave broadcaster calls it quits.