According to media accounts, more long-range, new over-the-horizon (OTH) radars that can identify aerial and sea targets hundreds of miles away are scheduled to begin operation next year in the Russian Arctic. It’s doubtful, however, that the news heralds the return of interference on the level of that generated by the so-called “Russian Woodpecker” OTH radar, which plagued Amateur Radio HF bands in the 1970s and 1980s.
Over the past couple of years, OTH radars, sans woodpecker, have become increasingly commonplace intruders on Amateur Radio bands, according to the International Amateur Radio Union Region 1 (IARU R1) Monitoring System (IARUMS), which has noted OTH radars in Russia, China, Cyprus, Iran, and Turkey. The frequency-hopping nature of the technology accounts for the annoying interference that covers wide swaths of spectrum. The Russian systems-intelligence “Konteyner RLS” OTH radar, transmitting from in the Nizhny Novgorod region, is frequently spotted on 20 meters. While no woodpecker, it transmits a broad, frequency-modulated CW signal at 50 sweeps per second with a bandwidth of 80 kHz or greater, accompanied by signal splatter, IARUMS Coordinator Wolfgang Hadel, DK2OM, reported recently.
Sputnik, a Russian government-controlled radio service, cited a Rossiiskaya Gazetanewspaper report that six OTH radar installations will operate in the region. Deputy Defense Minister Dmitry Buklgakov, who visited the construction site, said a runway capable of handling all types of combat aircraft was simultaneously being reconstructed nearby, the report continued. Other reports have indicated that similar systems will be deployed in the Far East in 2018. Russia has sold its OTH radar technology to China.
OTH radars employ widely separated transmitting and receiving site and can “see” beyond the horizon, the typical limit for ordinary radar. The systems employ antenna arrays of up to 5 kilometers long and 5 meters tall. — Thanks for news tip to Frank Smith, WS1MH
The Konteyner receiving site southeast of Moscow.
The TYT TH-9800 QuadBand Transmit, Twin Receive, Dual Display FM Radio Transceiver for the 10 Meter, 6 Meter, VHF 2 meter & UHF 70cm Bands! * Load... Read more
There is no shortage of ways to deploy a Chameleon Hybrid-mini/micro antenna! In this video, I will show you some of the most common ways to deploy a... Read more
Does your neighborhood forbid antennas but allow flagpoles? Is tearing up your lawn to lay 64 radials not an option? Or maybe you just want a high-per... Read more
Part one of our look at the Digital Modes. Read more
In this video I show you how I setup an audio mixer for my ham radio station. I am using this mixer to monitor the audio outputs from my Elecraft K3,... Read more
“So many people have started using FT-8 on HF, but they leave all the other modes to die off, like Olivia. Olivia isn’t new, but it offers... Read more
In view of the escalating demand for higher mobile data (from IoT, industry 4.0 applications), there is a growing world-wide interest to improve the r... Read more