How efective is Jammer in 4.331 ?
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I read that everything about jammer capability is clasified, but I guess how efective is jammer in BMS now, (hope it is not also clasified )
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In general a jammer in BMS will make it hard to pick up your RCS down to about 20-35 miles range, depending on the radar scan mode, power, etc of the adversary.
Additionally you should know most missiles have what is called home on jammer mode, (HOJ) meaning the missle will track the jamming contact if its radar has dropped the lock, so it is very important during an intercept timeline that ECM is off by approx 20-25 miles to prevent this. It’s more effective the further out you are from what’s looking at you.
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Additionally you should know most ACTIVE missiles have what is called home on jammer mode, (HOJ) meaning the missle MIGHT track the jamming contact if its radar has dropped the lock
FTFY.
ARH missiles (AIM-120 and R-77) in BMS, and IRL AFAIK, are HOJ-capable, but they won’t always automatically HOJ.
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That’s great additional clarification, thanks Eagle-Eye for the value add, however tactically speaking it is important to assume it will always HOJ, so that’s what I was going for. There is no way to determine the active, semi active or radar guiding phase of an incoming missile so we can’t work from that assumption it might not track the jammer. Very important to note, imho.
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I guess Hoj capability refers to AA missiles, what happens with Ground to air missiles.- Is jammer efective against ground radars ? Is it risky ?
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It is effective against ground radars, SAM systems etc, but once again at a certain range (which varies on the radar that’s tracking you) you begin to get burn through.
It is quite effective against most legacy SAMs and moderately effective for many modern SAMs and typically you will defend with a combination of energy/angles, out turning, flashing the jammer, while using bundles of chaff if you are launched upon. With these techniques combined you can trash most SAM launches pretty quickly.
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Flashing the jammer ?, thats new for me
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Yes, that means cycling the ECM off/on repeatedly, which tends to confuse the SAM radar.
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Yes, that means cycling the ECM off/on repeatedly, which tends to confuse the SAM radar.
just to expand on this, count 1 missisipi for on and then off…
the trick here is to break lock even for a fraction of the time as this will trash the telephone pole
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FTFY.
ARH missiles (AIM-120 and R-77) in BMS, and IRL AFAIK, are HOJ-capable, but they won’t always automatically HOJ.
Thats not been my experience in BMS. If the target is jamming, my experience in 4.33.1 has been that it automatically transitions to HOJ. The symbology is incorrect in this regard, as it should not be possible to infer from the HUD symbology that this has happened, but it is.
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I think it was corrected. The symbology HOJ doesn’t exist anymore ;).
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It was corrected in 4.32.4, back in December 2012.
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…Flashing the jammer…
I’m really not sure I’ve actually done anything, but coincidence or not, it felt like a magical trick.
Everything you need to know and links in my Youtube channel, "About" section.
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I’m really not sure I’ve actually done anything, but coincidence or not, it felt like a magical trick.
That’s not quite it, your ECM needs to be turned on/off several times. I think this one was pretty lucky, you didn’t have a ton of energy and I didn’t see your ECM being cycled, which will be indicated by the ECM light (it will light up green with, “ENBL”) on the MISC panel. Might of just been a low pk shot by the AI and you were going just fast enough (350 is minimum tactical speed) to avoid the hit.
Edit: would you guys like me to make a video?
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regarding the HOJ capability - as you’re not able to lock/bug a jamming object, is HOJ meant when object wasn’t jamming on launch time but during missile flight time?
Or are we talking about maddogs when talking about HOJ? -
regarding the HOJ capability - as you’re not able to lock/bug a jamming object, is HOJ meant when object wasn’t jamming on launch time but during missile flight time?
Or are we talking about maddogs when talking about HOJ?It means absent all other guidance (radar guidance phase, HPRF, MPRF) the missile will attempt to home on the signal produced by the jammer of the bandit. As far as a BORE mode AIM-120 shot, I am not sure if it will HOJ, as far as I know HOJ seems to be associated with the last known contact and reaching MPRF (Pitbull), but I could be wrong. Might need to refresh myself in the BMS manual on this particular area, maybe someone else can help me out here.
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Just an interesting thing I found in the manual and I’m sure Darkman or any other could answer if it is worth messing with yet, but you can change the jammer logic of AI to increase or decrease the odds of HOJ, which might allude to what Eagle-Eye was talking about much earlier in the thread about the ARH missile not being 100% guranteed to HOJ.
g_bAIjamLogic 0 Enable (1) or disable (0) new AI jamming logic code. The new logic should be more realistic, but has not been fully tested yet. The new logic tries to adapt jamming according to the opposition capabilities (to prevent HOJ for instance). The old logic was using the jammer according to flight lead usage or RWR spikes (i.e. switching on the jammer in reaction to a spike, even when in HOJ range of capable weapons). Default = 0. -
Other perspective: Tacview. Facing the threat, I have no Amraam, I order the element to engage and as I sense the shoot on bound to happen, I try to regain energy quickly without loosing too much altitude.
The Alamo forgets me a few seconds after my little switch. I don’t know what stopped it, I’d be surprised if it were drained. And I think it had a good lock almost until the end.Edit: watching closer. Seriously, it seems to leave me when I off/on. I still think it’s a coincidence, but it’s troubling
That’s not quite it, your ECM needs to be turned on/off several times. I think this one was pretty lucky, you didn’t have a ton of energy and I didn’t see your ECM being cycled, which will be indicated by the ECM light (it will light up green with, “ENBL”) on the MISC panel. Might of just been a low pk shot by the AI and you were going just fast enough (350 is minimum tactical speed) to avoid the hit.
Edit: would you guys like me to make a video?
Everything you need to know and links in my Youtube channel, "About" section.
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Okay thank you for that, I found the answer for you
The R-27R is a semi-active radar missile (SARH) which means it must be supported the entire time of flight by the launching aircraft. Your #3 fired on him as commanded by you, resulting in the MiG-29 going defensive, snipping his lock and ultimately trashing the missile for you. If it were not for the AI firing on the MiG-29 that missile was going to impact your airframe, it was only because he was forced to drop the lock, that the R-27 lost guidance, so you were just very lucky indeed. :eek: -
Luck, or it’s just that we know we need to shoot first most of the time
Something’s still troubling me: the missile keeps correcting while the MiG apparently totally left it to its fate, pointing away.
Okay thank you for that, I found the answer for you
The R-27R is a semi-active radar missile (SARH) which means it must be supported the entire time of flight by the launching aircraft. Your #3 fired on him as commanded by you, resulting in the MiG-29 going defensive, snipping his lock and ultimately trashing the missile for you. If it were not for the AI firing on the MiG-29 that missile was going to impact your airframe, it was only because he was forced to drop the lock, that the R-27 lost guidance, so you were just very lucky indeed. :eek:Everything you need to know and links in my Youtube channel, "About" section.
