RSAF F-15SG

last SG · 2008-11-05T11:14:31+00:00

it has already been non existent for 3 years.. you dont call that a replacement.. and F15s are well known for their air to air capabilities which is what the...

lionnoisy SG

just a photo.no comment.

SG-1 on test fly.

STimes 26.11.2008 by David Boey

Shotgun SG

Nah, TH/SG'll probably find out before the French. MY suks can't operate without radar forever and once they turn on, they're already within range of snoops (north and south). By now, SAF will probably already have a signature print. IAF has radar emission controls/restrictions for exercises so FR won't find out that easily. AESA-F-15s used only for "friendly" country exercises which may not apparently include Fr. lol

Bars has single TR module. If it had multiple, the Russkis and Indians will be all over the web claiming it is an aesa already.

The Russkis are marketing the Irbis AESA for the Su-30mki and Sokol AESA for the LCA. However, mkms has the bars and until they retrofit, it won't be an aesa. Maybe next batch, but again, there's a whole load of generational grades for AESA.

Yeap, you're right. Single T/R source for the Bars N011M. It was the Irbis-E (snow leopard that introduced 2 Chelnok travelling wave tube transmitters.

It seems that the Bars doesn't have LPI, due to some lack of data processing capability. I suspect it probably won't know how to differentiate what is background noise from what returned from its own low power emission. I don't think its at its peak power most of the time... that sounds to be rather... erm maintenance intensive?

The last Russian AESA I saw on AusAirpower was on the Zhuk, not sure if those u mentioned are newer than that or not.

sgstars SG

Bars has single TR module. If it had multiple, the Russkis and Indians will be all over the web claiming it is an aesa already.

hmm, dont mind me asking. having a signature print, how does it help us in elint / warfare ?

search , track and jam ?

slim10 SG

Radars operate on frequency. Having another signal on the same frequency jams the frequency. Kinda like how radio 98.7, 95 etc in SG all have specific frequency so they don't jam each other. If you've tried tuning into 88.9 BBC, you'd know how minor frequencies sharing the same would make it difficult to find that frequency.

That's how jamming works. If one knows the frequency in which radars operate, then one knows what frequency to use. That's the basic ew fundamental. EW is of course a lot more complex than that. There are many forms of jamming and eccm-wise, there are things like frequency hopping etc to evade jamming.

Also, as different equipment operate in different frequencies, one can identify the type of radar used esp on missiles. If missiles can be "id"-ed one can deploy the right combination of jammer, chaff or flares to distract the missile. That's something the Israelis and USAF have an edge on. Also, that's also a major boo-boo when a plane like the EP-3 falls into the wrong hands....

sgstars SG

i see, that would explain why america was so worked up over the hainan incident.

hmm, then how does burn through jamming work ?

slim10 SG

Basically, if one radio operate with x power and the other operates with x+1 power, then the x+1 power will have some access to the frequency (but lower). Factor in that the jammer signal will need to travel a longer way (which just means degrading radar signal further out) That's why suk and F-15 radars are very respected (their raw power).

Frequency hop means hopping to a frequency that isn't jammed but of course there are wide band jamming techniques etc. With AESA and thousands of TR modules operating at different frequencies, one can guess why the aesa is sought after.

Alternatively, one can use deceptive jamming instead. Instead of preventing use of the radar, one misleads the radar with false signals. EW is a whole ballgame by itself.

Shotgun SG

Alternatively, one can use deceptive jamming instead. Instead of preventing use of the radar, one misleads the radar with false signals. EW is a whole ballgame by itself.

Then again, frequency agile jammers made to counter AESA radars can also analyse signals and jam all those frequencies the AESA TR modules are emitting at.

And given they are transmitting at multiple frequencies, their output would probably be lower proportionately to the number of frequencies they are running at. It would be easy to jam the AESA radar frequencies IF ( a VERY BIG IF ) the jammer can immediately hit those frequencies exactly.

sgstars SG

Then again, frequency agile jammers made to counter AESA radars can also analyse signals and jam all those frequencies the AESA TR modules are emitting at.

lol bro , dont u have exams or something ?

interesting posts you have here, we dont have EW discussions on the other forum. but then, pardon my noob questions, how do AESA radars form high-speed datalinks ?

Shotgun SG

Geee, that I'm not sure as well. I mean even our F-15SGs are gonna be on link-16. The only platform I hear that uses AESA radar as datalinks was the F-35 and F-22. The problem was with the Link-16 being vulnerable to signals intercept, and hence they needed a more stealthy datalink.

You might wanna check out this site though.

http://www.defense-update.com/features/du-1-06/aircraft-com.htm

yes, I've got a European History paper tomorrow morning. I'm pretty screwed for it already though. =(

sgstars SG

You might wanna check out this site though.

http://www.defense-update.com/features/du-1-06/aircraft-com.htm

yes, I've got a European History paper tomorrow morning. I'm pretty screwed for it already though. =(

ahh,,, i see. i have an SSA tomorrow and i m pretty set for that. Singapore as a global city with kwa chong guan. he's good.

u a history major ? why screwed ? go study la

Shotgun SG

Nah, PS major.

For a 1101 thats covered within the semester, I've got to study from Enlightenment all the way til Post WW2. About 200-300 years?

The damn French ain't making it easier for me either with endless revolutions. Only "frenchman" that made sense to me was Napoleon. And even he was actually a Corsican.

French history makes the Russians look like simpletons.

Back to topic. Can pvt message me if u want.

lionnoisy SG

shall we expect similiar capacity from SG version?

Also Tuesday, the Israel Air Force's official magazine reported on a new avionics system installed in F-15I fighter jets that enables pilots to drop several smart bombs simultaneously. Smart bombs, or precision-guided munitions, are guided weapons intended to maximize damage to the target while minimizing civilian damage.

- [ 翻译此页 ]27 Aug 2008 .

Yaakov Katz , THE JERUSALEM POST Aug. 27, 2008
www.jpost.com/servlet/Satellite?cid=1219572136078&pagename=JPost%2FJPArticle%2FShow

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