The Nebo-M is a Russian radar station that detects and tracks airborne targets, including ballistic missiles, stealth aircraft and even tiny drones. The system boasts unparalleled range: up to 1,800 km and a maximum altitude of 1,200 km. It has two radar systems that use different frequency ranges. The Nebo-M, mounted on three trucks, is also mobile and quick to deploy. Combat Approved takes a look and puts this mighty beast to the test.

Nebo-M Radar Complex: The Stealth Buster

This is one where they demonstrate capability against small drone which detected at about 7.7 km. The curious thing is that in the NNIIRT brochure is that they show “operational limit” range of 10 Km minimum.

The minimum radar range is correspond to how short/long the pulse can be made. All radar systems have a minimum range, range when they cannot detect any object as their receiver is closed off during transmission. This correspond to the pulse width. 10 km range in brochure indicate the pulse width of the system is about 66 micoseconds. If they can pick at that range (7.7 km) the pulsewidth should be quite short. The Nebo is probably in short range mode (this is where the radar deliberately emit shorter pulse).

What else do you consider as frequency diversity? Is it not being able to field radars and sensors covering different aspects of the EMS?

I’m more thinking into RLS-M. Where it is one system But it operates in 3 bands and sharing common processing and command center and. or the Su-57’s supposedly N036 system. or a dual band like the Taifun radar for MiG-25 which operates in both Ku and X. Sharing one antenna and have common processing.

That is not what I said. As I tried to explain, it is very very rare for the US operators to specify frequencies unless it is for very specific requirements (like BMD discrimination or when modeling threats). The Radar OEM’s have been able to meet all specified current and future requirements including the ability against “5th generation threats” within the space they currently operate in. Only time they have needed to go towards VHF has been when modeling threat systems or when asked to specificly develop models of current aircraft and cruise missiles against threat radars operating in that region.

So the Industry already met the requirement without need to go VHF and VHF only required when it is necessary ?

I think simple “no requirement” can sum it up.

I could be looking at this wrong but from what I can see having Surveillance, MMR’s, C-UAS and BMD systems in the L, S, C, X and Ku bands offers frequency diversity. But that’s just me. They’ve even supposedly deployed a Long-Range Persistent Surveillance (ALPS – Passive) system in the pacific this year embedded with PATRIOT batteries in the region. Also as others have mentioned, the US Navy already fields the UHF band AN/APY-9 in an airborne surveillance capacity tied to its common operating picture and integrated fire control tasks.

Well that’s no different than say integrating S-400 with Polyana which then controls other radar and give common view.

The one i’m looking at is why No real or deployed system with VHF ? e.g why US dont market VHF band radar or deploy one. The UHF is well as you see only in E-2. or why no “TPS-XX” with say 3 Radars like RLS-M.

Maybe i should be more specific.. on what technical reason ? Does VHF always considered inaccurate or does it simply too big ?.

Well Su-57 weapon bay is already been tested on Su-47. So the internal layout will likely be identical.

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So the payload would be like 2 R-77-1 in each bay. Or 2 R-77-1 and 2 R-37M or Izd 810. For air to ground 4 Kh-59MK2 or mix can be carried.

E-2D is L band AFAIK

E-2 is always UHF.

Yeah but why not use or explore them for typical “anti aircraft” purpose?

That nose looks plain weird!

forms follow function. gotta show dem slanted bulkhead for reduced RCS. 😎

Man, can’t wait it fly with Okhotnik. and demonstrate controls.