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2017/10/08 17:58:43 海外ニュース
If there are enough of them to take losses
The Navy sent to Iraq hundreds of electronic warfare specialists signal jammer
Protocols were established, to allow one device to send its signal and then go silent for a few milliseconds, so another gadget could broadcast; that allowed Warlock Red and Warlock Green to be packaged into a single, combination unit...The intelligence specialists at the Combined Explosive Exploitation Cells got faster and faster at analyzing which frequencies the insurgents were using. That, in turn, allowed the jammers to be updated more quickly, so they could counter emerging threats.

A new generations of jammers were introduced too, they could cover a broad range of frequencies and perform specific "set-on" jamming which mean that "rather than confuse a receiver with a modified version of its own signal, Duke had a series of built-in jamming responses, designed to fool very specific devices." And as gps blocker got better, the insurgents in Iraq largely abandoned the use of IEDs and deaths from IEDs dropped.

So while the Air Force has bet on stealth to hide its planes from hostile radar, the Navy is still buying electronic-warfare aircraft to neutralize radar the old-fashioned way, by jamming it. Those Navy jammers also support Air Force operations and are even crewed, on occasion, by Air Force personnel – but the Air Force has no cellphone jammers aircraft of its own.

Conversely, non-stealthy aircraft can still penetrate sophisticated air defenses — if there are enough of them to take losses and still complete the mission, and if they’re accompanied by enough jamming aircraft to blind and baffle the enemy radars. The question then becomes whether a small number of stealth planes gives you more bang for the buck – and fewer US casualties – than a larger force of non-stealth ones.

Escorting gsm signal jammer can batter their way through enemy air defenses
Deptula said, “you’d have to put together a significant force package with many aircraft to do the same job as a handful of fifth-generation jets F-22s and F-35s.” In the future, as enemy sensors keep improving, the 5th gen stealth planes might eventually need some drone radio frequency jamming support themselves, he acknowledged, “but they’re going to use a hell of a lot less.”



In fact, while jamming has been done usually by special-purpose aircraft like the Air Force EF-111 Raven (retired in 1998) or the Navy EA-6B Prowler and its replacement, the EA-18 Growler, fans of the F-22 and F-35 argue the new planes can scramble enemy radar on their own. Thanks to the same increases in processing power than make radars more sensitive, electronic warfare systems that once took up an entire airplane can now be miniaturized and fit aboard a fighter-bomber as just one weapon among many. For example, the F-35 possesses powerful jammers and highly classified electronic warfare capabilities, as well as boasting layers of designed-in low observability (aka stealth). Exact capabilities are highly classified, but proponents say the latest systems can not only tell where an radar beam is coming from but can also feed back subtly scrambled signals, misleading enemy sensor operators who may never even realize they’re being jammed.
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