Nicely writtwn bug report. @Gunjob any chance ypu can take a look at this?
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What does this mean for the radar? Sorry I’m not very well versed in radar stuff.
This is called blind range, a limitation for radar running in both Medium PRF and High PRF (HPRF) mode.
Long story short, by definition of HPRF (operate in 100+ kHz PRF) and the following equation:
Given that PRF>(pulse width+ recovery time+ more time interval)
Rmin<(light speed)/(2*PRF)
The blind range of HPRF mode should be at most 1500m.
Look at the following links if you want to know more.
and
In-game, Russian and NATO radars have a 9 km and 5 km HPRF blind range, respectively. This is most likely because a 1985 MiG-29B technical manual stated that the N019E radar had a design fault that prevented it from detecting multiple targets within 8 km in the HPRF range-searching mode. This issue also gives N019E a 9 km HPRF blind range. On the same page, it also stated that the Soviets already knew how to fix that processor design fault.
By showing that AN/AWG-9 could track while scanning two parallel flying targets in HPRF TWS mode, it proved that AN/AWG-9 didn’t have that N019E processor problem. Therefore, the additional HPRF limitation on N019E should not apply to AN/AWG-9.
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Thanks for the great explanation.
Thank you for your swift response, Gaijin.
The same response was used in my two other tickets, “Incorrect HPRF minimum range for AN/APG-63 PSP” and “Incorrect HPRF minimum range for AN/APG-65Q”, where I didn’t do any calculation and provided direct sources with exact data.
Incorrect HPRF minimum range for AN/APG-63 PSP:
https://community.gaijin.net/issues/p/warthunder/i/30z8VuAgWyXS
Incorrect HPRF minimum range for AN/APG-65Q:
https://community.gaijin.net/issues/p/warthunder/i/NogwTBtaAhRi
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Might also want to reference;
Since;
“Техническая подготовка командира взвода ПЗРК 9К38 “Игла””, И. Акулов, В. Байдаков, А. Васильев, 2011.”
Doesn’t exactly seem like a “Western” Source now does it especially considering;
https://community.gaijin.net/issues/p/warthunder/i/yUohrEMuQLna
https://community.gaijin.net/issues/p/warthunder/i/LbD7XSmoaAJc
https://community.gaijin.net/issues/p/warthunder/i/CrgLh51VkpQZ
Directly contradict the article(s), they themselves have published, and also impact NATO ordnance / vehicles.
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That is why I submitted reports for both sides.
Incorrect HPRF minimum range for Russian Radar (N001, N010, kopyo-21, kopyo-25 and every Russian Radar introduced after 1985):
https://community.gaijin.net/issues/p/warthunder/i/0moTpQycHb9F
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Gaijin moment 💀
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Are you sure that wouldnt be a issue for N001? Its basicly upscaled N019
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I think so. N001 was introduced in 1985. That hotfix seems to have already been applied before 1985, the year the manual was published. Page 128 of that manual stated:
"To eliminate this uncertainty, a method can be applied when the slope of the LPM changes in the second measuring cycle. All combinations of filter numbers are analyzed in the BTSVM, and the corresponding distances in two measuring cycles are determined. If the distances calculated using any combination of filter numbers for the first and second measuring intervals differ by more than 8 km, then such combinations are considered false and excluded from further processing.
However, this method has not yet been implemented in the radar complex(N019E), and uncertainty recognition is achieved at the stage of analyzing the trajectories (routes) of targets in the SNP (TWS) mode."
[Для устранения этой неопределенности можно применить способ, когда во втором измерительном такте крутизна ЛЧМ изменяется.Все варианты сочетаний номеров фильтров анализируются в БЦВМ, и определяются соответствующие расстояния в двух измерительных тактах.Если расстояния, вычисленные при каком-либо сочетании номеров фильтров для первого и второго измерительных интервалов, отличаются больше чем на 8 км, то такие сочетания считаются ложными и исключаются из дальнейшей обработки.
Однако данный способ в РЛПК пока не реализован, и распознавание неопределенности достигается на этапе анализа траекторий (трасс) целей в режиме СНП.]
The said manual:
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Incorrect HPRF minimum range for the F-14 radars. (Updated)
https://community.gaijin.net/issues/p/warthunder/i/MbdYfqADbv1W
I have complied with the feedback of the Bug Reporting Manager in the previous post.
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Thank again for your swift response, Gaijin, but what does that even mean? I provided two sources in the report.
The same response was used in another ticket of mine, “Incorrect HPRF minimum range for AN/APG-63 PSP (Update)”, where I provided two sources.
Incorrect HPRF minimum range for AN/APG-63 PSP Update:
https://community.gaijin.net/issues/p/warthunder/i/253jPPFZJSBq
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Would be crazy if they fixed this within a few updates while letting the older buff-fixes rot
You’re responding to the wrong comment but does it even matter in this thread? They still haven’t given the F-14 it’s IR-T capabilities, and they probably won’t.
However, in the current game, this nerf will not affect much as most F-14 players becayse they usaually take x4 AIM-54, x2 AIM-7s.
Now give it the Fatter missile as well and it will be fine. Not many info on the missile though, still you can expect AIM-9P5 performance at the very least. In game , AIM-9P with 9M seeker.