Tphuang:

Those figures came from 2 years ago. N-035 was glight tested LAST YEAR, and the press note (from an official organ like the Russian Embassy at Chile, receiving info directly from OAO Sukhoi delegation) was pretty enfatic on it. The range values of the theroetical perception were attained. They would never give such exact values (3m2 and 0.01m2) under “average perceptions” like “fighter”, “cruise missile”, or anything else if not tested…

T-10BM program started in 2004, so eDefenseonline article was just reporting the first tidbits and making a little of guess-stimations. I’m sure the info they received would have indicated that Irbis should use “Chelniok” TWT (that allows that kind of performance your source gives) and it’s understandable. Original Bars was slatted for Chelniok but didn’t receive it…it’s healthy to assume that Irbis’s TWT is better than Chelniok…they in spanish were pretty specific on it…”peak power”…no journalist, not even from Embassy post could made that…that was quote from the Sukhoi guys at the expo…and this is confirmed by people that went there…

Who told you a Su-27 has RCS 5m2??? or maybe 3 trillions?

Keep throwing what?, I’m sorry, the only ocassion when I open my mouth is to give correct (and backup able) data…so is this case:

“BRLS, intended for Su-33UB Russian VVS can obtain the already finished on the early versions of “Bars” two-coordinate drive of antenna, which ensures its corrective turn along the azimuth and roll capture, and also powerful output amplifier of the transmitting channel, created on the base of travelling-wave tube “Chelniok” (average power 5… 7 kW), which does not have at present universal analogs. All this must by an order almost increase “combat” potential BRLS. “Bars” can be established also on the promising ship two-place multifunctional aircraft Su-27KUB, that passes at present flight tests.

It should be noted that in the course of tests the early version of “panther”, equipped with five-kilowatt transmitter, actually demonstrated the possibility of detecting class destroyers “Su-27” at the distance of more than 330 km such possibilities under the force today perhaps that to the specialized aircraft OF DRLO – “Hawkeye”, “Sentry” or A-50.”

NIIP And its radars
Herald of Cosmonautics

Authors are the director of NIIP im V.V Tikhomirov and chief designe head of section of same institute…

So you have to say exactly what?…

Furthermore you again don’t see that Irbis uses a 4 times more powerful transmitter…and its average power and duty cicle isn’t known…average power of Bars (1.2 kW) is similar to AN/APG-63 and less than AWG-9 or SBI-16 Zaslon per example…

The information on NIIP site just says “no less” than a value margin of statistical probability…nor they said under what conditions those range values are get (there is a big difference in raw range performance between a RWS mode with FM and HPRF/MPRF and a Velocity Scan mode without FM and HPRF…check AWG-9)…

(FM = Frequency Modulation)…

Bars was supposed to use the very powerful “Chelniok” TWT with peak power of +8kW and average power of 5.5 kW with duty cycle of 30%. It was not available at the end, and it resorted to the 4.5 kW peak TWT)…with that TWT in tests it could “detect” a Su-27 at 330km while tracking and IDed another targets.

Exact performance of RLSU-30MK Bars is not known

What it’s impressive is the peak power of the Irbis. 20 kW is something like 4 times the peak power of the N-011M Bars (rated at 4.5 kW peak, 1.2 kW average).
And yes, that’s impressive…guess how many radars out there could detect a 0.01 m2 RCS target at 90km (that’s more than the fighter detection range of N-019, 60-70km against 3m2 target!)