Quote:
Originally Posted by Rossiman
Yes, you are right the F-22's radar is capable of seeing out to 150 miles
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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 1mē 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.
Quote:
Originally Posted by Rossiman
The AN/APG-77 changes frequencies more than 1,000 times per second to reduce the chance of being intercepted.
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Each pulse transmitted by the APG-77 is of a different frequency and different power level.
Quote:
Originally Posted by Feanor
I'm sorry that was totally over my head. All I could get out of it is that somehow the F-22 has a passive ''radar'' of sorts?
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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