Oberst Zeisig Posted September 12, 2014 Posted September 12, 2014 (edited) Real 4 bar scan is 10 degrees and that's what DCS manual also says about LRS scan pattern height. Also contacts on radar scope are updated in four distinct bars. It's hard to notice unless you create a scenario that shows it in a clear fashion. Yeah Youre right, I´ve just tested it. It´s 4 bar scan. You can see it at the arrow on the left side for the antenna elevation indicator. Seems to be the only option for LRS. Edited September 13, 2014 by Oberst Zeisig [sIGPIC][/sIGPIC] Good combat flight is understanding the nature of things and the feeling to handle it.
85th_Maverick Posted September 19, 2014 Posted September 19, 2014 A quick and probably silly question! Which radar takes a less time in order to scan a complete picture (without re-orienting the antenna)? The APG-63/70 (don't know which one's modeled in DCS) on the F-15 or the ones on the Russian fighters like MIG-29, Su-27, Su-33? From my opinion, it should take less time for the Russian radar to scan a complete cycle on the 4 horizontal bars than it takes for the Eagle's radar. The Russian radar seems to scan a complete horizontal bar in one pulse which takes less time than it takes for the Eagle's radar to sweep it's antenna on a bar in less than 2 seconds (as GGTharos suggested), so the Russian radar jumps to the next bar much quicker. I don't know the exact scanning technique each radar uses. Thanks! Good knowledge and common sense make the absurd run for defense. Flying has always been a great interest for mankind, yet learning everything about it brought the greatest challenge!
SFJackBauer Posted September 19, 2014 Posted September 19, 2014 A quick and probably silly question! Which radar takes a less time in order to scan a complete picture (without re-orienting the antenna)? The APG-63/70 (don't know which one's modeled in DCS) on the F-15 or the ones on the Russian fighters like MIG-29, Su-27, Su-33? From my opinion, it should take less time for the Russian radar to scan a complete cycle on the 4 horizontal bars than it takes for the Eagle's radar. The Russian radar seems to scan a complete horizontal bar in one pulse which takes less time than it takes for the Eagle's radar to sweep it's antenna on a bar in less than 2 seconds (as GGTharos suggested), so the Russian radar jumps to the next bar much quicker. I don't know the exact scanning technique each radar uses. Thanks! They are not different in its basic mechanism, its always a pencil-like beam scanning left and right, its just you don't see in the russian aircraft the little arrow going left and right like you see in the F-15C B-scope. One important thing people may be missing here is that between you, the pilot, and the physical radar apparatus in the nose, there is a digital computer that decides what to display as a contact in the HUD or the radar scope. So you may be even painting the target correctly and its just not appearing in the display because its being rejected by the computer, either as clutter (doppler rejection, aka notch), or because its return is below the noise threshold (beyond maximum useful radar range, small RCS). In this aspect the digital processor of the F-15C is more advanced than the digital processor present at the time in the Su-27 variant depicted in the game, and thus allowing either a faster or more accurate resolution of targets in high-noise and difficult situations, but I think that DCS does not make such distinctions, apart from the TWS mode which is much better in the F-15C.
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