avon1944

AvLeak had an article which stated the range of the APG-77 radar is approximately 125nm. The USAF has chosen to decrease the range to 108nm against a target with a RCS of 1m² so the transmitting power can be be further reduced, that will enable its transmittions to appear as random noise to opponent's RWR's to a far greater degree.

Each pulse transmitted by the APG-77 is of a different frequency and different power level.

The ALR-94 is the passive detection system. The ALR-94 long before the APG-77 radar can see anything, at ranges of 250 nm or more. It can detect and track the target with a very narrow beam, measuring as little as 2° by 2° in azimuth and elevation.

Adrian

Rossiman

You took what the article said and copied and pasted it... i know what i am talking about i have some of the actual figures. My uncle was one of the key designers for the radar and avionics package. He did key trials, and helped with designing the actual pulses that the radar sends out.

Feanor if you have any more information feel free to ask, if i can't answer it my uncle can if he is able to =), Classified information you know how that goes.

Jimmy

You're heading down a road you dont want to visit. Either he wont tell you anything, or he'll tell you the same numbers you can get online, or he'll make something up, or he'll tell you and earn a prison cell.

Its kind of fun when people post stuff that you know to be false but cant call them on it. You just have to shake your head.

Rossiman

What is the point of this? I am not saying that I know more than you, or anyone else on WAB.

I am however saying that i do know more than "most" about the radar/avionics. Why even come in here, and try to spread lies that you know nothing about. And the information that I do know is NOT highly classified, but it wouldn't be the best information to be posting on the net. I don't know the exact numbers but i do however have a broader spectrum than most......

So, please ask me what you want, i am not one of those viable kid's that post useless nonsense to spread my "E-fame" lol.

So, be my guest "shake" your head all you want because its gonna be a long night.

Levsha

How old did you say you were in your introduction thread... 16?

Feanor

On radars in general, how does a passive radar work? Pick up the activity of other radars?

wabpilot

What don't you understand about radar warning receivers?

The RWR on our aircraft can detect radar emissions long before the emitter can detect even non-stealthy aircraft. With RO aircraft such as the F-18E/F, Rafale or Typhoon, it means we can get close enough for a quick shot with AMRAAM long before your radar can detect us. With an RCS like that of the F-18A, C and D it can still get close enough to a Su-30 for an AMRAAM shot. All this without turning the radar from the standby mode to an active mode until it is time to shoot. Current versions of the AMRAAM need radar illumination to launch. But, the AMRAAM NCADE will have silent launch capability. It should be noted that the Rafale and MICA already have a silent launch capability. The frequency agility of western radars also make their detection less likely, especially at longer distances. Where as, Russian radars with their high power output tend to be easier to detect at longer distances. All things considered, less energy output is better.

Adux

Sir,

Please read through N011P PESA Radar.
Its pretty good radar with far better detection range than expect maybe AESA radar.
But you might understand it better than a civvie like me.

MarquezRazor

Whoever may ping the other's RWR first , the locate , track and ultimately missile guidance has to be done by the radar itself and the more powerful radar will get to do those things considerably earlier...and will have the advantage.

Yes LPIing radars particularly when combined with LO platforms is an huge advantage.I hardly think F-18 series have low RCS....lower than F-15 or Su-27 perhaps but not at all LO compared to the other VLO platforms out there.
SU-30 has recieved RAM bandaid its RCS have been decreased by upto 4 times IIRC.

Wabpilot Sir,I didnt get what you meanst by silent launch?Do you mean LOAL?

wabpilot

No it does not. Depending on the missile, the AA10, MICA and AMRAAM NCADE don't use radar at all. The AIM-120 has three modes of guidance. Active, which means it takes its guidance from its onboard radar. Semi-active, which means it takes its guidance from an offboard radar. Or, RF, which means it takes guidance from the targets radio frequency emissions, normally radar. The AMRAAM NCADE will have an infared seeker like the AIM-9. In the active mode, the AIM-120 needs only a brief radar illumination from the host aircraft for a successful launch and flight. In the semi-active mode the host has to continuously illuminate the target for the missile to kill it. Given the range of the AIM-120, US radars are optimized for detection quickly without unnecessarily giving away too much counter target information. More powerful radar would just assure the enemy had a better RWR fix, and add nothing to the probability of a successful missile launch.

It depends on which F-18 you are talking about. The F-18E/F has a RCS roughly the same as Rafale or Typhoon and much smaller than any competing Russian offerings.

Unfortunately, the Su-30 emits so much RF that all the RAM in the world won't hide that thing.

Simply being able to launch a weapon without lighting off the radar. Obviously an AIM-9 can be silent launched, although the PK can be increased by radar slaving the AIM-9, but it's not necessary.

The French MICA can be silent launched and is quite effective without any radar emissions. The old AIM-54C was the champ of long range silent launches. Our initial IRST was not always reliable, but the TCS solved that problem, at the cost of some range. Still, we could launch on a target about sixty miles out without ever lighting off the radar. Nasty little trick. When we got the combined IRST/TCS on the last of the F-14s, we got our range back. And we went from nasty to very nasty.

Today, none of our missiles have the kind of range the AIM-54 had. I would not want to be solely dependent on RF guidance. Still, it puts Ivan in a bind. If he lights off his radar, he gets killed by an AIM-120C or MICA. If he turns it off, the slammer goes active and now Ivan is blind and turning for his life. If Ivan is facing a MICA, he probably doesn't know it until the fire warning horn goes off. Either way, it's not good to be Ivan.

wabpilot

No question it's the best Russian effort yet. But, it has deficiencies that can be exploited. The Russians don't have many or very good AEW&C platforms, thus they depend on ground based radar and in plane radar to get adequate range. Without the ground radar, the Russian planes emit way too much RF. Inside a good integrated air defense system, where the N011P can be used sparingly it's deficiencies are minimized. That's the way the AA10/Mig-29 combination is designed to work and it is very formidable. But, outside the former East or Russia today, the AA10/Su-30 is just another target to be serviced in a timely manner.

Jimmy

Chill out, you're misunderstanding. What I'm telling you is that just because you know something doesnt mean you have to post it on the internet. There're some damn smart people on this thread, and if you really do post something that's a complete revelation its probably classified and I DO NOT want that info released.

I wasnt talking about shaking my head at you, I was talking about some of the people who think Russian missiles really can hit targets at 150km while the AMRAAM magically explodes at 20, or that the Blackjack is a reliable aircraft, etc etc. If you do have information most people dont have access to, you dont have to post it...sometimes its better just to sit back and know.

For a radar to work, it sends out a signal. That signal has to go all the way to the target AND all the way back. Lets pretend I have a radar that can see 100 miles away. The signal travels 100 miles, hits a plane, and comes 100 miles back. So my radar is actually powerful enough that a useful signal travels 200 miles. Well, the signal isnt pointed ONLY at the target...most of it misses and goes right past it. So somebody another 50 miles away can detect that signal...but he's too far away for the radar signal to bounce off his plane and come back to mine...it'll fizzle out before it gets back.

Does that make sense?

Rossiman

Yes, I know what your stating sorry about flipping out on you, i thought you where saying this to make me look stupid. Yes, i know the information i know wouldn't be safe to post on the net. That is what i wrote i know this and am not gonna post something classified.

Rossiman

Lol read the thread you will see what i meant.

Rossiman

I couldn't have answered this question better myself, thank you.

The Russian radar sends out more of a pulse which is easily picked up on are radars. Thus the AESA radar is opposite it sends out less of a pulse which isnt picked up, but is Way stronger and is ABLE to see, planes,tanks or whatever it needs be, from far away.