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    Russian Radar systems

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    Singular_Transform
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    russian radars

    Post  Singular_Transform on Sat Jan 14, 2017 12:53 pm

    Militarov wrote:

    From million miles. It actually can detect aircraft flying in Mars orbit.

    The Russian radars are not capable to do that, but of course the US military doesn't know the meaning of impossible : )

    https://warisboring.com/the-u-s-navys-next-hawkeye-plane-can-detect-stealth-fighters-51023944fcbe

    they write about the capability of Hawakeye :
    “It is the physics of longer wavelength and resonance that enables VHF and UHF radar to detect stealth aircraft,” Westra wrote in his article, titled “Radar vs. Stealth.”

    UHF-band radars operate at frequencies between 300 MHz and one GHz, which results in wavelengths that are between 10 centimeters and one meter long. Typically, due to the physical characteristics of fighter-sized stealth aircraft, they must be optimized to defeat higher frequencies in the Ka, Ku, X, C and parts of the S-bands.


    So, just to compare: the hawkeye has a 7.3*0.7 meter big radar, the NEBO-M 60*6 meter big.

    The Nebo 70 times bigger than the hawkeye radar.



    Feel the difference?


    so either the US military lie , or the NEBO-M can detect the f-22/35 from extreme distances : )
    Pick your choice.

    You can trash now the US military, and bragging about the incapability of them : ) and how rubbish the US navy and the hawkeye.


    But the principle of operation to detect stealth is simple, and using the same principle like this antenna:

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    Re: Russian Radar systems

    Post  HM1199 on Sat Jan 14, 2017 4:46 pm

    thanks for the replies guys , so from all that we can deduce the s400 using nebo m or gamma DE can actually be a potent stealth hunter ?
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    GarryB
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    Re: Russian Radar systems

    Post  GarryB on Sun Jan 15, 2017 9:30 am

    Not just stealth aircraft...

    Incoming ballistic missile warheads have a small RCS too and need to be tracked and engaged...


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    medo
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    Re: Russian Radar systems

    Post  medo on Sun Jan 15, 2017 10:23 am

    Nebo-M AESA complex consist from 3 radars, 1 VHF working in metric diapazone, 1 working in dm diapazone and 1 working in cm diapazone. Max range is 600 km. VHF radar see stealth planes without problem and having more Nebo-M complexes in different locations mean, that they could triangulate stealth planes very precisely for the use of air defense and fighter jets.

    Older Nebo-SVU VHF radar, which was the first AESA VHF radar, have enough small cell for target location, that S-300 complex could launch missile on it without using of tracing radar. It was used only to guide missile to the cell of Nebo-SVU radar and there missile itself will find and attack the target. No need for tracking radar to actually see the target.

    Modwern AESA VHF radars are precise enough for air defense use, specially when there is more of them in different locations and they triangulate targets. In that case stealth doesn't mean any advantage. SHORADs and medium range SAMs will use optical channels against stealth planes, so for them VHF radar is enough. Don't forget that Russian IADS also have a lot of different passive ELINT complexes, which could detect any emmiting from planes and stealth F-22 and F-35 also use radars, data links, TACAN, communications, IFF, etc, so they will be precisely tracked from long distances for the use of air defense.
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    Stealthflanker
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    Re: Russian Radar systems

    Post  Stealthflanker on Sun Jan 15, 2017 10:29 am

    HM1199 wrote:can someone tell me , at what range a NEBO M complex can detect an f22 or an f35? or at least if it can detect it from a reasonable distance?

    this actually difficult to said.

    However the VHF band will roughly give 7 times the detection range of X-band assuming same power and antenna gain. Thus low 0.0001 sqm target that detectable in X-band will roughly be detected in 210 Km by VHF band.

    So basically yeah..it should be detected at reasonable distance. The only limit would be Horizon.

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    Re: Russian Radar systems

    Post  HM1199 on Sun Jan 15, 2017 2:17 pm

    hmm i see thanks for the information guys , yes so if the radar detects the airdraft (RCS 0.1 m2) from 240 km in the decimeter band then in the xband range will be higher .
    However about the Nebo M , i hear all around that the "range is 600 km " , but against what ? and in which band ? because its multispectral so i dont know . Does someone know anything about that?
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    Re: Russian Radar systems

    Post  Singular_Transform on Sun Jan 15, 2017 8:17 pm

    HM1199 wrote:hmm i see thanks for the information guys , yes so if the radar detects the airdraft (RCS 0.1 m2) from 240 km in the decimeter band then in the xband range will be higher .
    However about the Nebo M , i hear all around that the "range is 600 km " , but against what ? and in which band ? because its multispectral so i dont know . Does someone know anything about that?

    everyone who don't know can tell it to you, and everyone who know risk prison if tell it to you : )
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    Re: Russian Radar systems

    Post  GarryB on Mon Jan 16, 2017 1:37 am

    hmm i see thanks for the information guys , yes so if the radar detects the airdraft (RCS 0.1 m2) from 240 km in the decimeter band then in the xband range will be higher .

    The range a radar detects a target is determined by several factors... the size of the antenna gives accuracy, the power of the signal allows range... the shape of the target can reduce the amount of radar signal that returns to the radar but is not a factor in longer wave radars as the shape of the aircraft is rather less important.

    A decimetre radar is less effected by target shape so can detect a shaped stealthy aircraft at longer ranges. It does not give as accurate a position of the target however as it is less precise. The breakthrough with the longer wave NEBO radars is that their modern digital design and AESA antenna arrangement improves performance to the point where they are accurate enough when used with other sensor and radars to track stealth objects.


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    Re: Russian Radar systems

    Post  franco on Wed May 17, 2017 1:49 am

    Another 11 Nebo-UM radar stations ordered for delivery through the end of 2019.

    http://function.mil.ru/news_page/country/more.htm?id=12123523@egNews

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