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The protection of privacy

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Long before the système of localization of global aidé people à to find their cars in the car parks of shopping centres, they helped États-Unis à to find its sub-marine familyéaires. The États-Unis drive currently 31 satellites jammer wave providing a continuous cover. For dédestroying the système GPS, a force hostile should attack différents satellites in its constellation. Blur is an attack much more attractive.

Blur a signal à récepteur GPS individual on Earth requires that the interferer crée a signal that competitor can overwhelm the original signal from the satellite. But the mechanism of interference betrays her often-m&our vision to me. You can scramble the communications to the système GPS, what is callé interference of uplink, but the attacks of GPS are easier when they disrupt the signal to the Earth, what is désigné under the name of interference of the downlink.

États-Unis never really have ébeen demonstratedé no threat of causing on the field of battle, but this does not mean that putting the désordre in the système GPS is of no importance géopolitique. In 2012, the Corée North lancé série d’attacks of interference against the South; reportée as having affecté l'éequipment of navigation of hundreds of aircraft as well as boats (but no accidents).

In fact, we are now if dépendants of the GPS that any disruption of service would be likely to cause an alarm immédiate for millions of people. In the months passés, the Russian version of the système GPS, the système, GLONASS, has incurred a problemèmy service - particularèsurely in April - which quickly « attiré the attention of a lot of people », said Shelton.

However, they are not « extr&stop;extremely effective; and, the confession of the m&stop, me Isabelle Gorce. « they Either did not work at all and won't cloud the conversation, or, on the contrary, they work too well and interfere in the internal communication between supervisors», explains Christopher Dorangeville, secrétary of the national CGT pénitentiaire. Christiane Taubira it-m&m stop;me a évoqué « limits » réponse écrite à a question from a député UMP in January. « Très co&burn;expensive », these devices quickly become « obsolètes ;, face évolutions techniques, such as the passage of the jammer téléphone, , explains the keeper of the Seals.

For face à these problèmes, a working group involving several industrial, supporté by the Groupement des Industries fran&case;easy Dédefence Terrestre (GICAT), has été put up in 2016. Réresult : modèthe new génération are today testés two éinstitutions in the île de france, including Fresnes. « Placés à the entrée of the cell, they are much more précis in their field of action; and, explains Christopher Dorangeville. Three million euros will &our vision to be invested, in order to équiper 26 éinstitutions with sensitive, by three years. It is Thales, who works déjà with the ministère of justice on the bracelets éelectronic and the national platform of the interceptions judicial, that manufactures it. « the choice of the technology that will be retained is not yet arbitré, as l'évaluation expécombining menée is still in progress ;, précise, however, the spokesperson of jammer gsm ministère of Justice.

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Anyone who n’has not taken the TGV à a few hundred yards from the gare du MIDI doesn't know how difficult it is to finish a good nap après a trip to the South. À a few minutes from the’arrivalée, there are dozens of shots of téléphone portable, come to disturb and interfere with the soft léthargie jammer car createdée by the vibration path-of-ferresque.
L’crucial issue is always the m&stop, me : forward à his close situé in station a information that may be read by lifting the t&stop;te, on panels dédiés. to the chagrin of The people situées in the périmètre de la conversation.

http://www.mjn7.com/magazine/read/brouilleur-tlphone-portable-pas-cher-gsm_71635.html

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