We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - Oliver

Pages: 1 ... 24 25 26 27 28 29 30 31 [32] 33 34 35 36 37 38 39 40 ... 43
466
QSLs Received / Long Live Radio eQSL
« on: November 09, 2015, 1602 UTC »
Thanks for the conformation LLR.
Logged from my current QTH in Germany.

468
Polskie Radio has turned off the longwave frequency 225 kHz on November 2, 2015, at 9:00 clock until November 22, 20.00 clock local time.
This is justified by the installation of a DAB antenna and extensive maintenance work on the transmitter.

According to information from Polskie Radio, the longwave 225kHz is still used by 40 percent of the listeners who follow the broadcasted program "Jedynka".A greater interest from abroad is noticed as well.


Source: http://www.radioeins.de/programm/sendungen/medienmagazin/radio_news/beitraege/2015/polen_langwelle.html

469
Solar storms and the particles they release result in spectacular phenomena such as auroras, but they can also pose a serious risk to our society. In extreme cases they have caused major power outages, and they could also lead to breakdowns of satellites and communication systems.

According to a study published today in Nature Communications, solar storms could be much more powerful than previously assumed. Researchers at Lund University in Sweden have now confirmed that Earth was hit by two extreme solar storms more than 1000 years ago.

“If such enormous solar storms would hit Earth today, they could have devastating effects on our power supply, satellites and communication systems”, says Raimund Muscheler at the Department of Geology, Lund University.

A team of researchers at Lund University, together with colleagues at Uppsala University in Sweden, as well as researchers in Switzerland, Denmark and the US, have been looking for traces of solar storms in ice cores from Greenland and Antarctica. Everywhere on Earth you can find traces of cosmic rays from the Galaxy and the sun, such as low levels of radioactive carbon.

A few years ago researchers found traces of a rapid increase of radioactive carbon in tree rings from the periods AD 774/775 and AD 993/994. The cause for these increases was, however, debated.

“In this study we have aimed to work systematically to find the cause for these events. We have now found corresponding increases for exactly the same periods in ice cores. With these new results it is possible to rule out all other suggested explanations, and thereby confirm extreme solar storms as the cause of these mysterious radiocarbon increases”, says Raimund Muscheler.

The study also provides the first reliable assessment of the particle fluxes connected to these events. Raimund Muscheler points out that this is very important for the future planning of reliable electronic systems:

“These solar storms by far exceeded any known events observed by instrumental measurements on Earth. The findings should lead to a reassessment of the risks associated with solar storms”, says Raimund Muscheler.

Short facts about solar storms:

Solar storms are eruptions on the sun causing the emission of huge quantities of particles. If they hit Earth the particles interact with Earth’s magnetic field which guides them towards polar areas where they cause northern or southern lights (auroras). There have been major solar storms in recent years leading to power outages, such as the one in October 2003 in Sweden and in March 1989 in Canada. The extreme solar storms that scientists now have seen traces of in ice cores were at least ten times larger than those observed in recent decades.
Publication: http://www.nature.com/ncomms/2015/151026/ncomms9611/full/ncomms9611.html

Source: http://www.lunduniversity.lu.se/article/traces-of-enormous-solar-storms-in-the-ice-of-greenland-and-antarctica

470
QSLs Received / Radio Casablanca eQSL
« on: November 01, 2015, 2035 UTC »
Thanks a lot for the confirmation Richard Blaine.

471
Just to remind everyone,
The daylight savings time is ending this Sunday in Europe and some other countries including Mexico.
North America will follow next weekend (November 1st.)

For specific time change information by country take a look at the link.
http://www.worldtimezone.com/daylight.html

This will also mark the beginning of the B15 winter schedule.
B15 is effective from 25 Oct 2015 to 26 Mar 2016.

472
North American Shortwave Pirate / UNID 6960 USB 0232 UTC 10/23/2015
« on: October 24, 2015, 0235 UTC »
S4 / S5
Noticed very weak first in AM Mode, Switched to USB after a minute or so.

0232 UTC, weak music with thump thump
0239 UTC, The Soggy Bottom Boys - I Am A Man Of Constant

0245 UTC, Jim Croce - Operator (S5+ stable now)
0246 UTC, The Ventures - Out Of Limits
0248 UTC, audio gone, assume s/off

0252 UTC, Back on, heard a male voice with ID? couldn't make it out.I believe to have heard the letter X.
0253 UTC, saying something about another body.
0255 UTC, Some electronic music I can't ID
0257 UTC, Frank Zappa - PO-Jama People
0259 UTC, 5 Seconds of Summer - Amnesia ?
0302 UTC, s/off

473
Broadcast Announcements / FRS Holland broadcast, 1. Nov.2015
« on: October 23, 2015, 1442 UTC »
Received the below email today,

Dear FRS Friend,

On Sunday November 1st FRS-Holland will hit the SW airwaves at 08:52 UTC/ 09:52 CEST with no less than 6 hours of music and information.
We are 35 years young!!  It will be worth while to tune in our way.
A Sunday full of music, information and radio related items....the 'old fashioned' true sound of short wave free radio.
Frequencies 9300//7700 kHz. Tune in! Go tell your friends...
For more detailed information surf to [ www.frsholland.nl].
Have a good weekend!

73s  Peter Verbruggen (on behalf of the entire FRS crew)

474
QSLs Received / Amphetamine Radio eQSL, 21 October 2015
« on: October 22, 2015, 2216 UTC »
Thanks a lot for the conformation AR.


475
QSLs Received / CPRRS - Radio Morania show eQSL
« on: October 22, 2015, 0127 UTC »
Thank you very much for the confirmation CPRRS.

476
General Radio Discussion / The remains of the Russian "Woodpeckers"
« on: October 20, 2015, 1939 UTC »
The "Woodpecker", so named after its annoying, like a woodpecker knocking noise, was a great plague in shortwave amateur radio of the 80s. What exactly was behind it, at that time was not known, nor what finally brought him in late 1989 to silence. Today you can visit his remains, however.

Starting from 1976, in full expression since 1982, an annoying, like a woodpecker came sounding noise on the shortwave. Shortwave radio listeners and radio amateurs suffered greatly under the "Woodpecker" interferences and some manufacturers of radios built into their devices even special filter circuits against this electronic pest an.
What exactly was behind it, was unknown, but, soon assumed due to the bearings, which pointed to the Ukraine as the location that the USSR was author of the disturbances. From the deliberate troublemakers unwanted broadcasts via targeted softening of the brain by acoustic Psychoterror to new military E-weapons ranged the wild speculations.

Above Horizon Radar with 10 MW ERP

An intentional disturbance of broadcasting could be ruled out since Radio Moscow was also affected by the Woodpecker disorders like Western broadcasts. The other assumptions were also wrong. However, it concerned something military, actually, that is an above the horizon radar, just this look about the horizon it achieved, the fact that it like in the early days of the radar technology on shortwave broadcasted, instead of in the usually usual (standard) millimetre wave band.

NATO had the equipment of course long identified and photographed, they led them under the name "Steel Yard". The Soviet military used the name "Duga" for over the horizon systems. The civilian population in East and West learned this not before the end of the USSR.
The waves of above horizon radars are reflected at the ionosphere and thus be expanding its field of view - but also the range of the noise generated by them. The "Woodpecker" reached up to 10 MW ERP 15,000 km. As for a "sharp" image short pulses must be sent, but they occupy a high bandwidth and there is no escape of the interference of these radar stations by frequency change. The "Woodpecker" facilities were in the USSR. They should be able to explore approaching nuclear missiles from America and Europe early. However, they were unable to recognize individual missiles, only whole groups of them. With the end of the Cold War and the further development of satellite technology that is better suited for such early warning systems, they have been largely shut down and dismantled.

Some of such radars are still active to the disappointment of radio amateurs today. Today's Above Horizon shortwave radars trying to reduce the extreme disturbances of the classic hard pulses with spread spectrum technology (intra-pulse modulation and noise modulation). Nevertheless interfere among other NATO radars in Cyprus to 10.13 and 18.13 MHz with a bandwidth of 40 kHz and Chinese plants at frequencies from 6.93 to 7.1 MHz and the Iranian over-the-horizon radar at 28.5 MHz amateur radio.

Direct connection to the nuclear power plant

The last begun stage in 1970 of the Duga-radar, used as its predecessors separate transmitting and receiving equipment. A distance of 60 km prevented the plugging of the  receiver by the transmitter pulses. A reception system, however, was built less than 10 km from the Chernobyl nuclear power plant and is powered directly from this with a high-voltage line. The reason for this constellation: The receiver and computer, working for security against the substances resulting from atomic explosions extreme surges partly in tube technology, and with the very high for that time computing power of more than one MFLOP so required large amounts of energy to operate that building investing in power plant near seemed advisable.
After the block 4 of the Chernobyl nuclear power plant exploded, after only three years of operation due to incorrect operation in 1986, the radar receiver system could no longer cleanse them from those other type of radiation that had descended over the whole area and half of Europe. The plant was shut down in 1988 and therefore the electronics moved to other locations or have been looted. However, a dismantling of the antenna was uneconomic as a result of radiation - a simple blasting of masts was not an option either due to the high radioactivity in the soil and it remained complete except for a few minor disassembles until today.

Due to radiation exposure can not be dismantled

The two standing antenna arrays near Pripyat and the Chernobyl nuclear power station are 146 and 90 m high and the larger 750 meters wide. The cylindrical elements which have been partly removed, the radiator, the rest is a reflector. This is probably one of the few radio equipment whose decommissioning enjoys amateur radio operators ...

In addition, there was the "circle", an array of two 120 individual, 10-meter antennas, which were arranged in a circle. The station building in the center was a further antenna. Here, probably the ionosphere has been studied to determine the transmission frequencies for the Duga. The antennas in the "circle" remind of the DEFA film "The Silent Star" from the book by Stanislaw Lem.

https://youtu.be/YeLjJXvtmxo

Meanwhile, the area can be visited at the Chernobyl nuclear power plant. Ukraine can use the revenue from this kind of "tourism" well.
Andre Friesen, who regularly organizes tours to the region, and is the origin of these pictures here, is also higher on the antenna system - the videos are worth seeing, but for not to be considered vertigo exhausting. Anyone interested can involve yourself in one of the tours.

Source: http://neuerdings.com/2015/10/11/alterdings-verstrahlte-antennen-die-uberreste-des-russischen-woodpeckers/
Translated by Google Translate

477
Thanks AR for the super fast conformation.
As always this greatly appreciated.

478
QSLs Received / Amphetamine Radio 13 October 2015 6925 USB QSL
« on: October 17, 2015, 1628 UTC »
Thank you very much for the confirmation AR.
As always, this is greatly appreciated.

479
Presumed "Cold Country Canada"

S5 with noise

2319 UTC, Blue Oyster Cult - The Reaper
2322 UTC, OM with ID"Cold Country Canada"

Thanks for the show CCC.

480
Received today the below email from Radio Spaceshuttle Int.,

Hi, we have our test transmissions going on during this weekend on 6305 kHz (actually a bit nearer 6304 kHz).
 
Please report us if you can hear it!

I am in doubt with current conditions,if there is even a chance to log the test broadcast. But maybe someone gets lucky.

Pages: 1 ... 24 25 26 27 28 29 30 31 [32] 33 34 35 36 37 38 39 40 ... 43