SPO-30/SPO-32 L-150 Soviet/Russian Third Generation RWR 'Dead Zone' Issue

As far as I know most RWRs do have many antennas. For example the British ARI 18223 and ARI 18228 are installed as one forward looking and one rearward looking RF head on the aircraft (see example image below). But each RF head contains 6 separate aerials (meaning coverage is provided by 12 aerials in total).

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I doubt this. To achieve ±90 degrees in elevation, three antennas are needed for each azimuth sector.

That’s an awful lot, something that’s definitely not visible on most aircraft.
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Here’s the diagram, there are 6 antenna’s in each RF Head. ARI 18228 was an early RWR so there are three pairs of antennas, one pair for each frequency band. And each antenna in a pair is angle to the left or right. With two RF heads this gave the system 360° azimuth coverage, but limited elevation coverage.

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That’s perfectly clear to me, yes. The problem is that to get more than 30 degrees of elevation, you need to copy this configuration twice more for each block.

I don’t see any aircraft with this configuration, although there are already several aircraft in the game with 360-degree RVR.

I suspect they have simplified antennas at the top and bottom, like the SPO-15, but they just omit this detail in the brochures.

As far as I understand, we don’t have detailed data on Western RVRs that would clearly indicate whether precise azimuth detection and target type identification are achieved at elevation angles of ±45, 60, or 90 degrees.

Um, EIAD and Low Band Integrated antenna is pointed up and down I think

If you mean no modification done to the antennas - no.
If you mean keeping the number and installation, but do modification to antenna structure -yes. I’ve archived this page long time ago, search ''Above right, large meter-band helical antennas can be seen on the backs of the solar panels…" and you will see how a ±10 difference of cone angle will effect the gain pattern.

http://mentallandscape.com/V_Telemetry.htm

Edit: If you want to understand the things advancedly, please check the textbooks and more credible sources - and prepare yourself for math grinding. :(((

hey guys, anyone got any idea what kind of antenna L.150.103 is? i know that L.150.102 is coarse antenna(the bulb), the L.150.104 is coarse antenna the monoblock seen on L-150-35 and L.150.101 is precise bearing antenna…it is found on Su-30SM

the dot/bulb on the right wing, near the edge and VKS star, similar one can be found bellow cockpit

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second dot from the front bellow cockpit

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Not all the ‘dots’ are belong to SPO/RWR, the one below the cockpit might be radio altimeter or DISS.

it’s defo L.150.103 and is part of L-150-30-SM rwr suite…i just don’t know what kind of antenna it is…

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Judging from the recently made report on RWR, I noticed that the Su-35 doesn’t seem to have the same antenna layout as the SM2. As far as I can see the SM2 has 2 bulbs, one on its back and one under the nose, but I can’t seem to find them on the 35, does this effectively mean that the Su-35 might have worse elevation coverage? Or perhaps the 35 has different positioning for them…

SM2

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Su-35

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as far as my research goes 35S might hav worse RWR coverage than even Su-30SM, let alone Su-30SM2

I’ve been looking at a few close up images of the Su-35, honestly all I could find were the MAW sensors, like the one just behind the cockpit, I’m kinda surprised even the 30SM might have wider coverage, but it’s not the end of the world I guess.

Where did you know the code of these antennae? Let me check it, probably finding something.

Antennae are not always visible.
e.g. Mig-29 with SPO-15LE
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I guess, that makes it even harder to find out if the RWR coverage could offer more :/

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Su-35 does have several little knobs along the spine length, as well as on the wing consoles.

Damn that’s a beautiful aircraft bruh 😭😭

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Yeah the flat ones, I have no idea what those are though, the little knobs on the SM2 resemble the RWR ones more so it’s a little easier to spot them.

Good images tho, the MAW receivers are so easily spotted in these.

About the Su-35, in these pictures the 6 dispensers are all mounted on the top part of the jet, but as seen from the later batches, they can have 2 under the tail (like the SM2), I wonder if gaijin considers adding a total of 8, effectively matching the amount found on the SM2.