2017年09月25日

GPS jamming data is extremely difficult

Role GPS Jammers


“GPS signal jammer are super faint,” he said. “Imagine a 30-watt lightbulb 12,000 miles in space. So, it doesn't take much interference for your smartphone's GPS to lose lock on such a low power signal. Interference could occur from walking in a dense forest, through a canyon, inside a building, driving among skyscrapers, or from GPS jammers. The end effects of GPS jammers aren't much different than the other causes of interference, they all make it harder for your GPS receiver to pick out faint GPS signals from the air, except jammers do it by adding noise to the environment.”


AFSOC received next-generation Digital GPS Anti-Jam Receiver (DIGAR) airborne anti-jam and anti-spoofing technology, according to a news release by manufacturer Rockwell Collins. The new equipment has more than 10,000 times the jamming resistance of the previous model.


“DT NAVFEST was established to provide a locally, more realistic GPS cellphone jammers environment in which aircraft platforms and (remotely piloted aircraft) could evaluate their performance under a degraded GPS signal,” Cook said. “Other locations around the U.S. provide such environments, but having it locally allowed for direct program input and cost savings to customers by not having to deal with the logistics costs of deploying to those locations.”


“Live GPS jamming data is extremely difficult for academic labs to obtain due to the complexity of working with the Federal Aviation Administration and regional first responders,” Lee said. “It is crucial that the Department of Defense support basic research and development that is ongoing in our nation's top academic institutions. Many of the low technology readiness-level projects will eventually migrate from academic labs to defense industry and military applications. Allowing the labs to participate on a non-interference basis is a win-win situation.”


To minimize the effect on the local community and air traffic gsm signal jammer


Planning of the GPS jamming was initiated months in advance. According to Johnson, the GPS jammers had a vertical reach in upwards of 30,000 feet, so the first step was contacting the FAA, which provided a list of "green" times when commercial air traffic was at its lowest. This led to the testing being performed between 1 and 6 a.m.


Northrop Grumman wird seine Software-programmierbaren drone jammer, bekannt als JCREW, in Full-Rate-Produktion externen Link, nach Erhalt einer $ 57,7 Millionen US Navy Vertrag. Wenn alle Optionen ausgeübt werden, könnte der Gesamtauftragswert auf $ 505 Millionen steigen, wobei die Vertragsabschluss für den August 2022 geplant ist. JCREW-Systeme sind softwareprogrammierbare Störsender für den Einsatz gegen gerätegesteuerte IEDs. Northrop Grumman hat abgebaute, montierte und feststehende Varianten des Systems entwickelt.


HTPOW


Sierra Nevada Corp. in Sparks, NV gewann einen $ 36,5 Millionen festen Festpreis, Kosten-plus-Festgeld, Kosten-nur Vertrag für die Produktion von Joint Counter Radio-kontrollierten Improvised Explosive Device Electronic Warfare (JCREW) 3.1 abgebaut Systeme zu erfüllen die Anforderungen der US-Truppen im Irak und in Afghanistan. Demontierte JCREW-Systeme sind elektronische Störsender, die die Inbetriebnahme von funkgesteuerten improvisierten Sprengkörpern (RCIED) verhindern sollen.


https://www.instructables.com/community/Briefcase-shaped-device-called-Lesochek/


https://www.memecenter.com/fun/7190578/mini-protable-signal-jammer-gsm-cdma-gps


http://www.koonio.com/videos/372/mini-protable-signal-jammer-gsm-cdma-gps

  
タグ :GPS Jammers


Posted by perfectjammer at 15:17Comments(0)Jammers