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-Short Attention Span Theater-
Russia Putting Up Short Range Radar That Can Detect The F-35 And Other Stealth Planes 310 Miles Away
2016-07-11
In other totally unrelated news: Lockheed Martin CEO Says Price of F-35 jets down 57 percent.

Russia's powerful over-the-horizon Podsolnukh (Sunflower) radar is capable of detecting and tracking the F-35 stealth plane or any other fighter jet that was designed to avoid detection.

The Podsolnukh short-range over-the-horizon surface-wave radar is developed by Moscow-based OJSC NPK NIIDAR. The Russian Defense Ministry plans to deploy several of these systems in the Arctic, as well as on Russia's southern and western borders.

The radar is capable of detecting sea surface and air objects at a maximum distance of 500 kilometers (over 310 miles) at different altitudes in line of sight and over the horizon. The Podsolnukh "can simultaneously detect, track and classify up top 300 sea and 100 aerial targets in an automatic mode," the Global Security website detailed.

The Podsolnukh has more to offer. The system could be put online in ten days and needs a team of just three people to stay operational, the media outlet explained. It does not need much power, it is easy to operate and it does not have much equipment. The radar stations have to be placed 370 kilometers apart to receive complete coverage.

Sea- and shore-based OTHR systems are becoming increasingly popular in coastal nations, who want to protect their exclusive economic zones from piracy, smuggling and illegal fishing. They also have military application. The radars could are capable of issuing alerts in case of an invasion or subversive activity.

Three Podsolnukh stations are operational in Russia at the moment. They are located in the Sea of Okhotsk, the Sea of Japan and the Caspian Sea.

The Pentagon is confident in the F-35's ability to perform in combat. "Don't believe the hype," Joe DellaVedova, a spokesperson for the Joint Strike Fighter program office
By making this statement, it suggests that if it is true that this radar can see us coming, that it would indeed be a bad thing. Assuming we actually wanted to attack Russia.
The quality of the radar detection depends upon signal processing and pulse compression.

Traditional limitation of VHF and UHF-band radars is that their pulse width is long and they have a low pulse repetition frequency [PRF]--which means such systems are poor at accurately determining range. As Mike Pietrucha, a former Air Force an electronic warfare officer who flew on the McDonnell Douglas F-4G Wild Weasel and Boeing F-15E Strike Eagle once described to me, a pulse width of twenty microseconds yields a pulse that is roughly 19,600ft long--range resolution is half the length of that pulse. That means that range can't be determined accurately within 10,000 feet. Furthermore, two targets near one another can't be distinguished as separate contacts.

Signal processing partially solved the range resolution problem as early as in the 1970s. The key is a process called frequency modulation on pulse, which is used to compress a radar pulse. The advantage of using pulse compression is that with a twenty-microsecond pulse, the range resolution is reduced to about 180 feet or so.
Posted by:gorb

#4  Assuming (a BIG IF) it can even detect a return signal from the F35, OTHR does not give accurate range information due to unpredictable wave travel paths in the ionosphere. Wavelengths are much too long for targeting and only useful to vector non-stealth aircraft quicker to their deaths.

In addition, as YUGE fixed targets, they would be the recipients of cruise or ballistic missiles within the first hour of a war.
Posted by: Cravirt Flusong7056   2016-07-11 21:41  

#3  Old news with these types of radar. They use very long wavelengths and while they can detect things other radars can't, they aren't very precise and by the time you figure out it is a stealth aircraft it has bombed its target and is well on its way home.

Now if someone can figure out how to have a computer use the longer wavelength radar to quickly identify a stealth fighter and feed information to the other radar so it can precisely track it and shoot it down... then we would be onto something.

Posted by: DarthVader   2016-07-11 19:29  

#2  ...Well, keep in mind that the Serbs shot it down because the United States By-God Air Force kept sending the planes in on the same route at the same time every night, and they had help from people watching the airbase. Can overcome a lot of stealth that way.

Mike
Posted by: Mike Kozlowski   2016-07-11 18:43  

#1  The Serbs shot down an F-117. No reason to think this isn't possible.
Posted by: Iblis   2016-07-11 18:09  

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