A good technical read about Radars

[VTJS17_Fire]

Hi,

 

here is a very good read about Radar principles, different techniques and such stuff. High interesting, IMO. As example, there is (technically) described, why the F-117 had some problems with its stealth capabilities over the Kosovo.

 

http://www.radartutorial.eu/

 

I know it's a German website, but you can use Google translate and there are a lot of graphics for better understanding. The page is - of course - not made by me.

 

 

Have fun.

Edited October 7, 2016 by VTJG17_Fire

[QuiGon]

Thanks :thumbup:

[Aginor]

Yeah, I read the thing some years ago and I can recommend it as well.

[Bushmanni]

It's also in English and several other European languages. You just need to find the language selection button.

[VTJS17_Fire]

It's also in English and several other European languages. You just need to find the language selection button.

:doh: Good to know.

[Emu]

English version.

 

http://www.radartutorial.eu/01.basics/!rb01.en.html

 

Also has a fairly cool radar encyclopedia.

 

http://www.radartutorial.eu/19.kartei/11.ancient/karte030.en.html

[VTJS17_Fire]

A German article from Spiegel Online (use Google translate) from 2012, but I didn't knot that until yet.

 

It describes the advantage of passive Radar against stealth technology. In general, it uses the same technique as the low-band radars in the Kosovo conflict: low frequency bands.

 

Passive radar makes stealth useless

Edited October 7, 2016 by VTJG17_Fire

[VTJS17_Fire]

I found another good read, about the conflict in Yugoslavia in 1999. There are links, reports and facts about the air defense systems, anti-radiation missiles and tactics, but also counter-tactics of the Bosnians and so on.

 

Website (use Google translate, it's in German)

 

 

And some good tricks ...

Zum Eigenschutz wurden Gummimatten ( 2 cm ) an Kabinen angebracht ( Splitterschutz ) Aus Internetseiten der Serben sind folgende ( unbestätigte ) Informationen bekannt geworden : das Funkmessvisier der MIG 21 wurde auf die Sendefrequenzen des SA3 ( 9 GHz ) abgestrahlt. Im Anstand von einigen 100 bis 1000 m . Nach anfänglichen Misserfolgen wurde die Scheinstellung optimiert. Innerhalb von 30 Tagen wurden 14 ARM auf diese Attrappe geschossen. Im Nahbereich der Feuerabteilung wurden Winkelreflektoren aufgestellt ( 300 m ) So wurden 8 HARM erfolglos auf die RBS P15 gestartet. Je Feuereinheit mussten 2 aktive Scheinstellungen und 2 Gruppen Winkelreflektoren aufgestellt werden . Wahrscheinlich wurden sogar Mikrowellen als Scheinziele aufgebaut.

[aaron886]

I appreciate some interesting information being brought up, but unfortunately all this has been fairly inaccessible to English-speakers on this English board. The translations on the website from the 1st post are OK, but can you translate your latest quote better than Google does?

[mig29movt]

It has already been translated from russian, so I can't get some of it...

But here's my translation:

They used rubber mats (2cm, ~1 inch) to protect themselves againts fragmentation. There are informations off serbian websites (unconfirmed): the radar on the MiG-21 was set to the fequency of the SA-3 system (9 GHz). (I don't get the context of the next sentence, litterally it means: ) In distance within a couple of 100 to 1000 meters. (?) After several failures at the beginning the fake (SAM) site was optimized. Within 30 days 14 Anti-Radiation-missiles were fired at the dummy. Within close range of the faked SAM site (300m, ~900ft) angle reflectors were set up. This way 14 HARM were fired at the RBS P15 unsuccsesfully. For every firing unit there had to be 2 faked sites and 2 groups of angle reflectors. Maybe even microwave ovens were used as dummy targets.

 

Zum Eigenschutz wurden Gummimatten ( 2 cm ) an Kabinen angebracht ( Splitterschutz ) Aus Internetseiten der Serben sind folgende ( unbestätigte ) Informationen bekannt geworden : das Funkmessvisier der MIG 21 wurde auf die Sendefrequenzen des SA3 ( 9 GHz ) abgestrahlt. Im Anstand von einigen 100 bis 1000 m . Nach anfänglichen Misserfolgen wurde die Scheinstellung optimiert. Innerhalb von 30 Tagen wurden 14 ARM auf diese Attrappe geschossen. Im Nahbereich der Feuerabteilung wurden Winkelreflektoren aufgestellt ( 300 m ) So wurden 8 HARM erfolglos auf die RBS P15 gestartet. Je Feuereinheit mussten 2 aktive Scheinstellungen und 2 Gruppen Winkelreflektoren aufgestellt werden . Wahrscheinlich wurden sogar Mikrowellen als Scheinziele aufgebaut.

[VTJS17_Fire]

It has already been translated from russian, so I can't get some of it...

But here's my translation:

Thanks. :thumbup:

 

 

(I don't get the context of the next sentence, litterally it means: ) In distance within a couple of 100 to 1000 meters. (?)

It means, that these angle reflectors were set up 100 to 1000 meters from the real SAM unit.

 

That's an angle reflector:

 

Small, but effective. It deceives the angle coordinates in the ARMs seeker, which leads to (not needed) maneuvers and can display a false target.

[Emu]

And that's why MMW radar seekers were invented.:D