This WAS true for brutal jamming. The power to be emitted depends on the power expected to be received by the opponent. Far more complex to estimate. Generally speaking on offensive modes one tries to avoid any EM emission. Complex factors…
It is true for all kind of jamming, brute force or smart. You need to generate a certain level of J/S for jamming to be effective ( different types of jamming/radar will require different level, but it is always there so the equation can’t change)
Equation from several pages ago:
If it can, IF..
Then both Jamming and Tr/Rc will be severely reduced as a stand alone capability. Not Even worth the hazzle.Mounting a huge escort jammer on a Su-34 type of platform and the all-directional self defensive jammer pods on Flankers will be much prefered capability, vs trying to make a “one in half baked all” package like we see on F-35.
Even with physically separated antennas,when jamming in action, the receiver of jammer pod on Su-34 and Flanker will still be servedly reduced in sensitivity because radio beam doesn’t only go forward, besides Flankers required jamming signal thousands times more powerful than F-35
Critics toward using AESA radar as jammer lies in the fact one can only do that in limited amount of frequency, remember that physical spacing of radiators and width of the TR modules determine your frequency range, plus it might be put the radar in danger of being exploited for passive geolocation or anti radiation missile attack
AFAIK, there are patterns for ESA with board band jamming
The transmit-receive cells are fully functional at broadband and narrow band radio frequencies. In the narrow band of 9.2 to 10.2 GHz, the active antenna system would operate as a radar system. In the broadband range of 2.0 GHz to 20.0 GHz the active antenna system is fully functional in electronic countermeasures and radio frequency jamming
https://patents.google.com/patent/US4823136
When interleaving SAR, A2A and other mode, you can time share the radar because you know in advance when you need to transmit (and reserve some time to receive the reflected signal). If you’re tracking an aerial target at 150km, the radar needs a <10ms slice every few seconds, SAR likewise can be chopped and spread over a (relatively) long time (by definition a SAR imaging takes several seconds).
But when you’re using DRFM jamming, you never know when your transmitter has to be ready. You detect a signal, digitize it and create copies that have to be sent right now. There is no scheduling, no planning, if you wait the signal you transmit will be out of the opponent radar window and useless.
You can either divide APG-81 into sub-array (doable because it is AESA) with some operating as radar and a small part as jammer, or if you want to use the whole radar to transmit jamming waveform, then AN/ASQ-239 antenna can be used in receiving phase of radar signal, piece of cake, all sensors data are fused on F-35.
IMI Systems (formerly Israel Military Industries) and Israel Aerospace Industries have jointly developed a new long-range precision strike weapon suitable for use during stand-off-range attacks.
Named Rampage, the supersonic weapon is 4.7m (15.4ft) long and has a total weight of 570kg (1,250lb). Its rocket and warhead performance and navigation suite enable the design to be deployed against high-value, well-protected targets with “utmost precision”, the companies say.
Suitable for carriage by a broad range of aircraft types, including the Lockheed Martin F-16 fighter, the Rampage missile will be released from outside an area protected by air-defence systems.Potential targets include command and control sites, communication facilities, air bases, maintenance centres and critical infrastructure, the companies say.
The Israel Military Industries (IMS) and the Israel Aerospace Industries (IAI) are currently at the final development stages of a new air-to-surface missile—the Rampage.r
The “Rampage” missile is designed to be launched from a fighter jet 150 km away from the target, meaning it will not be detected by the enemy’s detection and interception systems.
Rampage air-to-surface missile
Israel’s two big military industries have held over the past year joint experiments which have shown the “Rampage” is operational.
The stand-off method—long-range artillery launching—has been used by the IAF for many years.
The production process and sale of the 4.7-meter long missile—that weighs half a ton including its rocket engine, and has a relatively small warhead that weighs some 150 kg—will commence during the upcoming year.
The Israel Air Force (IAF) is likely to purchase the missile for its operational needs.
Among the missile features are its ability to control and monitor the extent of its shrapnel, which will make its strike surgical, accurate and with minimum collateral damage despite the fact the missile spends a lot of time in the air from the minute it is launched until it strikes its target.
However, the IMS and the IAI say that in light of the new ability developed—launching the missile up to 150 km from the target—the ratio between the accuracy and the effectiveness of the strike and the missile’s large distance from the fighter jet is its most significant advantage.
The IAI’s Missiles and Aerospace Division’s manager, Boaz Levi, told Ynet that the missile’s cost is about one third of the cost of similar missiles being sold across the world.
The Rampage already has a potential buyer, however the IAI did not reveal its identity.
The missile will be adjusted to all offense platforms including the IAF’s F-15, F-16 and F-35 fighter jets and will be used against anti-aircraft batteries, enemy’s headquarters, armament storages, and logistic bases among others.
The missile’s warhead will be guided by a GPS system, which will allow him to strike during the day as well as the night and in any weather conditions including fog and cloudiness.
The GPS system’s Achilles’ heel is that it can be relatively easily disrupted. Therefore, the missile’s developers added an additional algorithm-based navigation system as backup that will give the missile immunity.
The missile will have two kinds of warheads, with the first one designed for penetrating armor protected targets such as bunkers and those immune to shrapnel damage.
IMI’s Fire Power Division’s Manager Eli Reiter said, “Sending four fighter jets carrying four Rampage missiles allows us to strike under conditions we’ve never had before.”
The IAF’s need of precision strikes has grown over the past few years, an example of that is the strike against bases and weapon storages in Syria, for which the IDF has assumed responsibility a month ago.
Syria’s army launched hundreds of anti-aircraft missiles as retaliation to the IDF’s multiple strikes. At the beginning of 2018, a Syrian missile shot down an IAF’s f-16 fighter jet in the Upper Galilee.
https://www.ynetnews.com/articles/0,7340,L-5283738,00.html
Unfortunately, it won’t fit inside F-35 or able to attack moving target unlike AARGM-ER
Spyder-MR has two distinct variants – a Python 5 + booster and Derby + booster. The 50km seems a very generic statement that can’t apply to both, since the missiles minus booster have very different A2A ranges
The engagement range of SPYDER-MR was advertised by Rafael, if Derby with booster can reach further than 50 km, i think they would have used that figure, better marketing and all that.
On the otherhand, i also think the speed and range is somewhat dubious given that David sling Stunner is actually smaller than Derby-MR
Another observation would be that these HTK missiles with ‘no warhead’ actually do have a warhead.
A third observation would be that missiles with no warhead might not lead to aircraft destruction and could lead to missile copying, as with the AIM-9B that hit a MiG-17 over the Taiwan Straight in 1958
Big HTK SAM like PAC-3 could have the enhanced lethality “warhead” but i don’t think it exists on tiny missiles such as Stunner.
AIM-9B is much slower than current AAM we have in our inventory.
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