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Monitoring The road to WW III.. Military EAM Frequencies..ADS B Aircraft Monitoring
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:Tangy:MV8zNTA5Njk3XzYyNjY0NDY0XzgwOUJFRTE2] [quote:THE INQUISIDOR:MV8zNTA5Njk3XzYyNjY0MzYzXzFCQjA2RDMw] [quote:Tangy:MV8zNTA5Njk3XzYyNjY0MzQ2XzU5RUNGQjNE] [quote:Tangy:MV8zNTA5Njk3XzYyNjYzNjU0XzM1RTU1MTAy] [quote:Ostria1:MV8zNTA5Njk3XzYyNjYzNDg0XzgzQ0ZGQjIx] [quote:Tangy:MV8zNTA5Njk3XzYyNjYzMzc4XzhBRUJENDA=] [quote:Anonymous Coward 5744006:MV8zNTA5Njk3XzYyNjYzMjcxXzcwQjA2RkQz] It's Over The Horizon radar causing the buzzing sound, it happens quite regularly. [/quote] ^ this most likely. I haven't turned it on to check. But yes, quite frequent. Some of you might find this interesting / handy.. http://www.sigidwiki.com/wiki/Category:Radar main site. This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio such as the RTL-SDR, Airspy, SDRPlay, HackRF, BladeRF, Funcube Dongle, USRP or others. http://www.sigidwiki.com/wiki/Signal_Identification_Guide [/quote] thank you both! so it doesnt mean someone is blocking this frequency? I havent seen it blocked like this before [/quote] There are so many frequencies they can use, it wouldn't make sense to jam just one. It is usually the British or Australian radars causing these. No doom :) :hf: **ha.. edit** ok, actually this time it is the Russians.. sorry link failed.. click 2nd link down 29B6 'Kontayner' OTH Radar http://www.sigidwiki.com/wiki/Category:Radar You can tell because this one is narrower, Brittish is 20 kHz and Russia is 14 kHz Still, probably not on purpose to jam. lol [/quote] bumping this because I had to edit. lol.. [/quote] Thanks..What do you think this is.. :yjyfjffgjtttt: :gfhfhgfh: [/quote] There is a lot of info in the link I posted about this particular radar. in part... 29B6, nicknamed 'Контейнер' (Kontayner), is a Russian over the horizon radar. It is currently very active in Europe. The radar uses 150 antenna masts with data transmission systems, transmitters and receivers, a power station and control buildings. It is able to detect both high altitude and low altitude aircraft and missiles at very long ranges. The first 29B6 radar installation is based at Kolkino radar station. The receiving antennas are located 8 km south-west from Kovylkino, Mordovia, Russia 53.9841°N 43.8427°E. The transmitters antennas are located 300 km from receiver, 5 km north from Gorodets town, Nizhegorodskaya oblast', Russia 56.69328°N 43.48625°E. 29B6 commonly uses 50 sweeps/sec (max range 3000 km), but it has been seen with 25 sweeps/sec (max range 6000 km) and 100 sweeps/sec (max range 1500 km). 29B6 uses Frequency Modulation On Pulse (FMOP), unique among OTH Radars since they tend to use Frequency Modulated Continuous Wave (FMCW). [youtube] https://www.youtube.com/watch?v=BMoztHw84a4[/youtube] https://www.youtube.com/watch?v=BMoztHw84a4 Published on Sep 8, 2013 This is a "new" Russian HF Over The Horizon Radar (OTHR), 29B6 Container (also spelled "Kontainer" and "Kontayner", or " Контейнер "). It has been seen off and on for a bit more than a year, but did not appear to be in a really operational state until the last week of August. Prior to the last weekend in August, 2013, it had only been operational during the week and during "normal" working hours. Since that time it has been in near 24 hour a day operation. It may have been pushed into service by the Syrian issue. The radar uses an interesting and uncommon (for HF radars) waveform. The signal is LFM, as many HF OTHRs are, but instead of being LFMCW it has a short chirp time and then a long blank time, or FMOP (Frequency Modulation On Pulse). The sounder has a similar waveform with a longer dead time. The sounder also has a slower rep rate, at 10 Hz (the radar has used 50 Hz every time I have seen it so far). There has been mention on the web of the return of the old Russian Woodpecker. The sounder associated with this radar is very likely the cause of this rumor. Its 10 Hz rate sounds similar to the old Russian Woodpecker, but the system is totally different in application and actual bandwidth occupied. This recording was made on a remote Perseus SDR in Europe, on September 8, 2013, starting about 1631 UTC. The radar could be received at my location in the Mojave Desert, California, USA, but was much stronger in Europe. [/quote]
Original Message
Check this out. Tune to 8992. I routinely monitor this great site. thus said ..I like it..NOW.. I have NEVER heard this type of activity on this site. I witnessed a propagation onto another frequency. This is VERY strange..
[
link to websdr.ewi.utwente.nl:8901
]
:gfhfhgfh:
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