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PostPosted: Fri Sep 12, 2014 4:29 pm
 


Ok. But again, all these sources state the BUK missile system uses low-wavelength radar for their missiles. PostFactum used the term "battle radar", and the college student from Kyiv who showed up at the club meeting in August used that same term. My understanding from PostFactum's posts and the Pierre Sprey interview is that Russia uses radar designed to target and lock onto F-35 and F-22 fighters.

Wikiedia Wikiedia:
The 9K37 utilises the 9S18 "Tube Arm" or 9S18M1 (which carries the NATO reporting name "Snow Drift") (Russian: СОЦ 9C18 "Купол"; dome) target acquisition radar in combination with the 9S35 or 9S35M1 "Fire Dome" H/I band tracking and engagement radar which is mounted on each TELAR. The Snow Drift target acquisition radar has a maximum detection range of 85 km (53 mi) and can detect an aircraft flying at 100 m (330 ft) from 35 km (22 mi) away and even lower flying targets at ranges of around 10–20 km (6–12 mi). Snow Drift is mounted on a chassis similar to that of the TELAR, as is the command vehicle. The control post which coordinates communications between the surveillance radar(s) and the launchers is able to communicate with up to six TELs at once.

H-band is 6 GHz to 8 GHz, or wavelength between 5 cm and 3.75 cm.
I-band is 8 GHz to 10 GHz, or wavelength between 3.75 cm and 3 cm.
Battle of Britain radar was between 20 and 60MHz
Wavelength: Between 5 and 15 metres
Hmm. Not exactly what Pierre Sprey talked about. But this is Wikipedia.


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PostPosted: Fri Sep 12, 2014 11:20 pm
 


Ok, I'm seeing where this is going. The "battle radar" is essentially what the Chain Home system was in Britain during WW2, except it's updated of course.
That's part of what Sprey was talking about. But the metric band radar was used to better detect incoming a/c at low altitudes, hence the name Chain Home (Low).

Now from what I understand, with the switch to digital and other upgrades like anti-clutter, the metric radar is capable of detecting certain stealth a/c. But there's an odd payoff, with metric radar the larger the stealth object is, the more effective it's stealth is. The stealth technology itself has improved. The two U-2s that were shot down during the cold war were early versions of stealth craft and were shot down after being picked up by BUK systems. We also know the latest BUK system is capable of painting an F-117, but oddly enough, they still can't detect a B-2 with any reliability. They can pick up F-22s as well but the F-22 has a great stand-off capability.
Each generation of a/c has improved stealth technology and electronic systems. We don't really know how well the "battle radar" would perform against an F-35 in a combat environment.

A little historical perspective is in order as well when it comes to what Sprey said about Britain's radar system. Just a few years ago they built an exact replica of an Ho-229, commonly thought to be the first "stealth" jet in the world. The Chain Home (Low) system would have been able to detect it, even at less than 100 ft altitude but the detection time would have been reduced by almost half, IF it was a prop driven a/c. But given its high speed capabilities, British air defences would have only had about 2 1/2 - 3 minutes to respond. It caused no return at all on centrimetric radar.


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PostPosted: Sat Sep 13, 2014 7:23 am
 


Unless they are decades old, military capabilities and specs are secret.


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PostPosted: Sat Sep 13, 2014 7:40 am
 


Lower wavelength radars are not suitable for missile guidance. The accuracy and clarity just isn't there.


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