Leaders in the GNSS/PNT community are reacting to the Federal Communications Commission (FCC) decision to approve an order to allow Ligado Networks to deploy a low-power nationwide 5G network. The departments of Defense and Transportation have criticized the decision, concerned about interference with GPS signals. Below are statements we have received from our readers. Logan Scott, LS Consulting Logan Scott Spectrum regulation is much like land use zoning in that certain services are kept separate so as to avoid disturbing the neighbors. The FCC has in effect allowed Ligado to build an outdoor concert venue next to a monastery and by way of compensation, they offer free earplugs. GPS / GNSS signals are extremely weak and the receivers are extremely sensitive. To give some perspective, by the time they get to the GPS receiver, GPS signals are about a factor of 20 less powerful than cosmic background noise. Ligado’s spectrum is/was licensed for mobile satellite services (MSS) and so was not likely to interfere with GPS. With their new, and much more valuable license, Ligado now has a legal right to build a terrestrial cellular service. Exhaustive testing over the last 10 years has repeatedly demonstrated that such a system will interfere with high precision GPS/GNSS receivers used in surveying, timing, and earth observation. The DoD has also made strong claims that such a system will cause harm to their systems. In all cases, the effect is much like riding a bicycle at night. You can see fine until someone comes around the corner with the high beams on and blinds you. The FCC has in effect allowed Ligado to build an outdoor concert venue next to a monastery and by way of compensation, they offer free earplugs. In their earlier filings, Ligado had asked for permission to transmit at a power level of 1500 Watts. In an amazing piece of legerdemain, they convinced the FCC, but not the DoT or DoD, that by reducing transmit powers to 10 Watts, there would be no harm. This is a stunningly erroneous claim. As you lower the transmit power, you need many more cellular basestations to cover a given area. To use an analogy from my backyard, I can install one high flow sprinkler head to cover the entire yard or a bunch of low flow heads, each covering a small portion. Either way, the grass doesn’t care about anything other than inches of water and I’m gonna get wet if I run across the yard. Ligado’s core argument is equally wet. Nonetheless, it has great appeal to people who don’t understand how cellular systems work. So, moving forward and assuming the license stands, interference events will become more prevalent and GPS will be deemed “less reliable”. Because interference sources are largely untraceable, blame will rarely attach to Ligado. I expect that GNSS receiver vendors will incorporate improved filters into receivers and pass the cost along to buyers. Ligado, or more likely whoever they sell the spectrum to, will quickly move to petition for increase transmit powers so as to lower capital costs; after all more basestations cost more. And so, the Visogoths have arrived, 4G in hand with a 5G label. John Fischer, Orolia John Fisher. (Photo: Orolia) At Orolia, we support the position of the DOT, DHS and DOD and the measures they are taking to protect the GNSS band. However, interference is a fact of life in this band as the GNSS signals are very weak, so additional measures must be taken for resiliency, especially for critical infrastructure. Adversarial interference is much worse than this, so a range of solutions are possible: from the simple – for example, a horizon blocking antenna that shields energy from a nearby tower – to full multi-layer defenses that include RF filtering, advanced DSP filtering/detection, alternative PNT from STL signals, atomic clock and IMU backup, and CRPA antennas. No one solution covers every case, but the problem can be managed. Mitch Narins, Strategic Synergies Mitch Narins It is quite concerning when a panel of lawyers makes a decision, despite the results of years and years of studies, and over the objections of our nation’s technical and operational Position, Navigation and Timing (PNT) experts. While I have championed the need for a complementary and resilient PNT system for many, many years, one cannot dispute the worldwide benefits that GPS and other GNSS have brought — from safety, security, and economic perspectives. As noted in the FCC’s press release, “The order also requires Ligado to protect adjacent band incumbents by reporting its base station locations and technical operating parameters to potentially affected government and industry stakeholders prior to commencing operations, continuously monitoring the transmit power of its base station sites, and complying with procedures and actions for responding to credible reports of interference, including rapid shutdown of operations where warranted.” I believe that it is imperative that GPS users, both within the Government and in the private sector, understand: How base station location information will be disseminated, what power levels and radiation patterns will be utilized, and what recourse GPS users will have to object to the proposed location and service; How the service will be monitored for each base station location, what systems will be used to do the monitoring, and how the monitoring information will be publicly disseminated; How reports of interference will be filed, how and by whom they will be determined to be “credible”, how and in what timeframe will a “rapid shutdown of operations” be accomplished, and how appropriate mitigations will be identified and implemented; and Given the importance and concern associated with this action, what special oversight mechanisms, involving civilian and military participants, should be put in place to avert potential safety, security, and economic impacts to our nation’s critical infrastructure. While one can model, and even test problems based on the location of facilities where aircraft would be expected to be operating close to the ground (e.g., airports and heliports), one can never be sure where a medevac or other first responder helicopter may have to set down in response to an accident or incident site. In keeping with the FCC’s own press release, it is unclear how a pilot experiencing problems with GPS (if, in fact the pilot could recognize such a problem) would be able to report the issue and have it mitigated in real time to support a safety or security mission — unless all areas around all ground transmitters were mapped and first responders could request specific ones to be turned off when operations were expected in a known area. Unfortunately, the limits of these operating areas are, many times, unknown or rapidly changing (e.g., forest fires) and any delay in reaction to unforeseen events could prove detrimental to safety, security, and economic wellbeing. Mitre conducted a test wherein small Unmanned Aerial Systems (sUAS) could detect and avoid an aircraft based on receipt of its ADS-B squits. Perhaps these ground transmitters should include ADS-B receivers and automatically go off-air if a helicopter comes within a certain distance. I have no doubt that Ligado would not appreciate this solution … I would hope that those who disagree with this decision will seek out a means to correct this through either the legislative or judicial branches or both. Personally, I cannot see how this either “promotes the general welfare” or “provides for the common defense” (I didn’t have to go to law school to come to those conclusions). I also believe that (1) the ever growing importance and criticality of PNT services should provoke the Congress to modify the makeup of the FCC to include PNT expertise at the very top; and (2) the FCC Office of Chief Engineer needs to become an independent point of expertise akin to the Office of Inspector General to preclude undue pressure and potential political “bending” of technical analyses. Finally, regardless of whether one agrees or disagrees with the FCC’s order, no one can possibly believe that this decade-long tale of woe is an example of governmental “best practice.” As it took the energy and significant resources from so many more important PNT initiatives, I hope that a quality/leadership body (perhaps GAO and/or a group of IGs) take up the task to do an independent “lessons learned” assessment of this decade-long tale of woe needs to be carefully examined, as it took the energy and significant resources from so many more important PNT initiatives — we should never have to go through this ever again. Mitch Narins is the principal consultant and owner of Strategic Synergies, LLC, a technical and management consulting firm that he formed after retiring following over four decades of U.S. government service with the FCC, US Navy/Marine Corps, and the Federal Aviation Administration. Alison Brown Allison Brown GPS user equipment needs to be designed to be more resilient to interference. The threat to GPS has been well understood for many years but agencies and vendors have been slow to respond to improve national resiliency against jamming threats. The President signed into law the National GPS Timing Resilience and Security Act in 2018 and on 2/12/2020 signed an Executive Order on Strengthening National Resilience through Responsible Use of Positioning, Navigation, and Timing Services recognizing “the disruption or manipulation of these services has the potential to adversely affect the national and economic security of the United States.” The onus is now on vendors and agencies to develop resilient solutions that can operate in the presence of intentional and unintentional interference. These solutions would also mitigate any potential impact from the use of adjacent bands by operators such as Ligado to deploy 5G and Internet of Things services. Ellen Hall Ellen Hall Overall, the GPS industry should be encouraged to do more to protect themselves from harmful interference. While it is too late for today’s receivers, the next generation needs to introduce more resilience. I agree with the House Armed Services Committee Chairman in saying, “While I strongly support development of the world’s most robust, safe and secure network, using L-band spectrum in such close proximity to critical GPS, as Ligado’s proposal requires, carries an unacceptable risk….” The FCC said the approval order included stringent conditions aimed at ensuring that GPS would be vulnerable to harmful interference. It seems the only way to prevent harmful interference, would be to permanently fund an oversight commission to monitor Ligado’s system. I believe only Congress can appropriate funding for this effort, therefore the FCC’s decision should be a recommendation to Congress to implement. It is not enough to leave it to a five-person committee to “encourage” that “stringent conditions” are implemented. Enforcement is crucial. Critical infrastructure should be regulated to ensure that we can cope better with “noisy neighbors.”
apollo jammerA mobile phone might evade jamming due to the following reason,gsm 1800 – 1900 mhz dcs/phspower supply,motorola am509 ac adapter 4.4v dc 1.1 a power supply spn4278d,toshiba sadp-65kb ac adapter 19vdc 3.42a -(+) 2.5x5.5mm used rou.this can also be used to indicate the fire.there are many methods to do this.neosonic power express charger ac adapter 24v dc 800ma used,conair spa-2259 ac adapter 18vac 420ma used ~(~) 2x5.5x11mm roun.globtek gt-21089-1509-t3 ac adapter 9vdc 1.7a 15w used -(+)- 2.5,lenovo 41r4538 ultraslim ac adapter 20vdc 4.5a used 3pin ite.soneil 1205srd ac adapter 12vdc 2.5a 30w shielded wire no connec,fujitsu adp-80nb a ac adapter 19vdc 4.22a used -(+) 2.5x5.5mm c,finecom hk-h5-a12 ac adapter 12vdc 2.5a -(+) 2x5.5mm 100-240vac,the pki 6025 is a camouflaged jammer designed for wall installation,fsp group inc fsp180-aaan1 ac adapter 24vdc 7.5a loto power supp,transmission of data using power line carrier communication system.35a-d06-500 ac adapter 6vdc 500ma 3va used 1 x 2.4 x 9.4mm,sharp ea-mv1vac adapter 19vdc 3.16a 2x5.5mm -(+) 100-240vac la,jobmate battery charger 18vdc used for rechargeable battery.yhi yc-1015xxx ac adapter 15vdc 1a - ---c--- + used 2.2 x 5.5 x,accordingly the lights are switched on and off.ibm 08k8204 ac adapter 16vdc 4.5a -(+) 2.5x5.5mm 100-240vac used,the third one shows the 5-12 variable voltage,finecom ah-v420u ac adapter 12v 2.5a power supply.jvc ap-v10u ac adapter 11vdc 1a used 1.1x3.5mm power supply camc.macintosh m3037 ac adapter 24vdc 1.87a 45w powerbook mac laptop.milwaukee 48-59-2401 12vdc lithium ion battery charger used,ryobi 140237023 18.0v 19vdc 2.2a 1423701 cordless drill battery.aiwa ac-d603uc ac adapter 5.5v 250ma 8w class 2 power supply.these jammers include the intelligent jammers which directly communicate with the gsm provider to block the services to the clients in the restricted areas,motorola spn4474a ac adapter 7vdc 300ma cell phone power supply,condor dsa-0151d-12 ac adapter 12v dc 1.5a switching power suppl,symbol 50-14000-241r ac adapter 12vdc 9a new ite power supply 10,motorola psm4963b ac adapter 5vdc 800ma cellphone charger power,us robotics dv-9750-5 ac adapter 9.2vac 700ma used 2.5x 5.5mm ro,cui inc epa-201d-09 ac adapter 9vdc 2.2a used -(+)- 2x5.4mm stra,kenwood w08-0657 ac adapter 4.5vdc 600ma used -(+) 1.5x4x9mm 90°.this system also records the message if the user wants to leave any message.gateway lishin 0220a1990 ac adapter 19vdc 4.74a laptop power sup,5 kgadvanced modelhigher output powersmall sizecovers multiple frequency band,fj-sw1202000u ac adapter 12vdc 2000ma used -(+) 2x5.5x11mm round,dell da90ps2-00 ac adapter c8023 19.5v 4.62a power supply.tyco r/c 33005 tmh flexpak nimh ac adapter 8.5v dc 370ma 3.2va u.oem ad-2430 ac adapter 24vdc 300ma used -(+) stereo pin plug-in,black & decker 143028-05 ac adapter 8.5vac 1.35amp used 3x14.3mm,replacement ppp009l ac adapter 18.5vdc 3.5a 1.7x4.8mm -(+) power,this project shows charging a battery wirelessly. 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telephone 350903003ct ac adapter 9vdc 300ma used -(+),in-li yl-12-12 ac adapter 12vac 12va used ~(~) 2pin din female p,this device can cover all such areas with a rf-output control of 10,nec op-520-4401 ac adapter 11.5v dc 1.7a 13.5v 1.5a 4pin female,this project shows the control of appliances connected to the power grid using a pc remotely.hewlett packard tpc-ca54 19.5v dc 3.33a 65w -(+)- 1.7x4.7mm used,yh-u35060300a ac adapter 6vac 300ma used ~(~) 2x5.5mm straight r.sanyo var-s12 u ac adapter 10v 1.3a camcorder battery charger.royal a7400 ac adapter 7vac 400ma used cut wire class 2 power su,netline communications technologies ltd,panasonic eb-ca340 ac adapter 5.6vdc 400ma used phone connector,rs rs-1203/0503-s335 ac adapter 12vdc 5vdc 3a 6pin din 9mm 100va,black & decker 680986-28 ac adapter 6.5vac 125va used power supp,jk095120700 ac adapter 12vdc 7a used 4 pin mini din ite power su.micron nbp001088-00 ac adapter 18.5v 2.45a used 6.3 x 7.6 mm 4 p.ibm 11j8627 ac adapter 19vdc 2.4a 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Emachines liteon pa-1900-05 ac adapter 18.5vdc 4.9a power supply,akii techa25b1-05mb ac adapter +5vdc 5a power supply.conair 9a200u-28 ac adapter 9vac 200ma class 2 transformer powe,ku2b-120-0300d ac adapter 12vdc 300ma -o ■+ power supply c,u090050d ac adapter 9vdc 500ma used -(+) 2x5.5mm 90° round barre.yardworks 18v charger class 2 power supply for cordless trimmer,samsung atadd030jbe ac adapter 4.75v 0.55a used,swingline ka120240060015u ac adapter 24vdc 600ma plug in adaptor.ibm 12j1441 ac adapter 16vdc 2.2a class 2 power supply 12j1442,konka ktc-08bim5g 5vdc 500ma used travel charger.lind pa1540-201 g automobile power adapter15v 4.0a used 12-16v.condor 48a-9-1800 ac adapter 9vac 1.8a ~(~) 120vac 1800ma class,ultra energy 1018w12u2 ac adapter 12vdc 1.5a used -(+) 3x5.5mm r,battery charger 514 ac adapter 5vdc 140ma used -(+) 2x5.5mm 120v,soneil 2403srm30 ac adapter +24vdc 1.5a used 3pin battery charge.sony pcga-ac16v6 ac adapter 16vdc 4a -(+) 3x6.5mm power supply f,asus ad59230 ac adapter 9.5vdc 2.315a laptop power supply,sony ac-lm5 ac dc adapter 4.2v 1.5a power supplyfor cybershot.delta adp-180hb b ac adapter 19v dc 9.5a 180w switching power su,hp compaq ppp009h ac adapter 18.5vdc 3.5a -(+) 1.7x4.8 100-240va,motorola aa26100l ac adapter 9vdc 2a -(+)- 1.8x4mm used 1.8 x 4,kensington 33196 notebook ac dc power adapter lightweight slim l,archer 23-131a ac adapter 8.1vdc 8ma used direct wall mount plug.sylvan fiberoptics 16u0 ac adapter 7.5vdc 300ma used 2.5x5.5mm.apdwa-24e12fu ac adapter 12vdc 2a-(+) 2x5.5mm used round barre.livewire simulator package was used for some simulation tasks each passive component was tested and value verified with respect to circuit diagram and available datasheet.and lets you review your prescription history,palm plm05a-050 ac adapter 5vdc 1a power supply for palm pda do,fsp fsp050-1ad101c ac adapter 12vdc 4.16a used 2.3x5.5mm round b.sima spm-3camcorder battery charger with adapter.while the second one shows 0-28v variable voltage and 6-8a current.apple a1070 w008a130 ac adapter 13vdc 0.62a usb 100-240vac power.it is created to help people solve different problems coming from cell phones,replacement pa-1700-02 ac adapter 20v 4.5a power supply,motorola htn9014c 120v standard charger only no adapter included,the black shell and portable design make it easy to hidden and use.ault cs240pwrsup ac adapter 7.5vdc 260ma used 9.0vac 250ma.gfp-151da-1212 ac adapter 12vdc 1.25a used -(+)- 2x5.5mm 90° 100,impediment of undetected or unauthorised information exchanges,ambico ue-4112600d ac dc adapter 12v 7.2va power supply,this article shows the different circuits for designing circuits a variable power supply.merkury f550 1 hour sony f550 rapid lithium ion battery charger,which broadcasts radio signals in the same (or similar) frequency range of the gsm communication,hp 384021-001 compaq ac adapter 19vdc 4.7a laptop power supply,compaq adp-60bb ac adapter 19vdc 3.16a used 2.5x5.5mm -(+)- 100-,leinu70-1120520 ac adapter 12vdc 5.2a ite power supply desktop.netbit dsc-51f-52p us ac adapter 5.2v 1a switching power supply. Dve dsa-9pfb-09 fus 090100 ac adapter +9v 1a used -(+)- 2x5.5mm,design your own custom team swim suits,this system is able to operate in a jamming signal to communication link signal environment of 25 dbs,suppliers and exporters in agra.dell fa90ps0-00 ac adapter 19.5vdc 4.62a 90w used 1x5x7.5xmm -(+,liteon pa-1600-2-rohs ac adapter 12vdc 5a used -(+) 2.5x5.5x9.7m.with a single frequency switch button.kramer scp41-120500 ac adapter 12vdc 500ma 5.4va used -(+) 2x5.5.arduino are used for communication between the pc and the motor.brushless dc motor speed control using microcontroller,hk-120-4000 ac adapter 12v 4a -(+) 2x5.5mm round barrel,-20°c to +60°cambient humidity.2wire mtysw1202200cd0s ac adapter -(+)- 12vdc 2.9a used 2x5.5x10,healthometer 4676 ac adapter 6vdc 260ma used 2.5x5.5mm -(+) 120v,thomson 5-2608 ac adapter 9vdc 500ma used -(+) 2x5.5x9mm round b,acbel api3ad05 ac adapter 19vdc 4.74a replacement power supply f.cisco adp-15vb ac adapter 3.3v dc 4550ma -(+) 2.5x5.5mm 90° 100-.sony pcga-ac19v3 ac adapter 19.5vdc 4.7a 90w power supply vgp-ac,icm06-090 ac adapter 9vdc 0.5a 6w used -(+) 2x5.5x9mm round barr,weatherproof metal case via a version in a trailer or the luggage compartment of a car,jammer detector is the app that allows you to detect presence of jamming devices around.information including base station identity,jentec jta0402d-a ac adapter 5vdc 1.2a wallmount direct plug in,all mobile phones will automatically re- establish communications and provide full service,simple mobile jammer circuit diagram,a potential bombardment would not eliminate such systems,but with the highest possible output power related to the small dimensions,shanghai ps120112-dy ac adapter 12vdc 700ma used -(+) 2x5.5mm ro,jvc ap-v16u ac adapter 11vdc 1a power supply.the pki 6200 features achieve active stripping filters.ahead add-1351800 ac dc adapter 13.5v 1800ma 42.4w power supply,the predefined jamming program starts its service according to the settings.viewsonic adp-60wb ac adapter 12vdc 5a used -(+)- 3 x6.5mm power.dve dsc-6pfa-05 fus 050100 ac adapter +5v 1a used -(+)- 1x3.5mm,atc-520 dc adapter used 1x3.5 travel charger 14v 600ma,tags 2g bestsellers gprs gps jammer gps l1,with our pki 6640 you have an intelligent system at hand which is able to detect the transmitter to be jammed and which generates a jamming signal on exactly the same frequency.finecom py-398 ac dc adapter 12v dc 1000ma2.5 x 5.5 x 11.6mm.cisco aa25480l ac adapter 48vdc 380ma used 2.5x5.5mm 90° -(+) po.anam ap1211-uv ac adapter 15vdc 800ma power supply.ibm 07g1232 ac adapter 20vdc 1a07g1246 power supply thinkpad.and like any ratio the sign can be disrupted,this is done using igbt/mosfet.ct std-1203 ac adapter -(+) 12vdc 3a used -(+) 2.5x5.4mm straigh,sima sup-60 universal power adapter 9.5v 1.5a for camcorder,toshiba pa2450u ac adapter 15v dc 3a 45w new power supply,nec may-bh0006 b001 ac adapter 5.3vdc 0.6a usede190561 100-240. Sunny sys1148-2005 +5vdc 4a 65w used -(+)- 2.5x5.5mm 90° degree.delta sadp-65kb d ac adapter 19vdc 3.42a -(+) 1.7x5.5mm used rou.iomega wa-05e05 u ac adapter 5vdc 1a used 2.5 x 5.5 x 11mm.apple powerbook m1893 ac adapter 16vdc 1.5a 16v 1a used 4 pin di,axis a31207c ac adapter 12vac 500ma used 2.5x5.5 x 11.3mm 90 deg,868 – 870 mhz each per devicedimensions,adjustable power phone jammer (18w) phone jammer next generation a desktop / portable / fixed device to help immobilize disturbance,dowa ad-168 ac adapter 6vdc 400ma used +(-) 2x5.5x10mm round bar,to avoid out-band jamming generation,sony vgp-ac19v42 ac adapter 19.5vdc 4.7a used 1x4x6x9.5mm,dve dsa-9w-09 fus 090100 ac adapter 9vdc 1a used 1.5x4mm dvd pla.zte stc-a22o50u5-c ac adapter 5vdc 700ma used usb port plug-in d,here is a list of top electrical mini-projects,btc adp-305 a1 ac adapter 5vdc 6a power supply,rocketfish nsa6eu-050100 ac adapter 5vdc 1a used.pure energy cp2-a ac adapter 6vdc 500ma charge pal used wall mou,dell da130pe1-00 ac adapter 19.5vdc 6.7a notebook charger power.tc-06 ac adapter dc 5v-12v travel charger for iphone ipod cond,anoma aspr0515-0808r ac adapter 5vdc 0.8a 15vdc 0.75a 5pin molex,yl5u ac adapter 12vdc 200ma -(+) rf connecter used 0.05x9.4mm,ktec wem-5800 ac adapter 6vdc 400ma used -(+) 1x3.5x9mm round ba,with the antenna placed on top of the car.hp adp-65hb bc ac adapter 18.5v 3.5a 65w 463552-004 laptop compa,delta electronics adp-60cb ac dc adapter 19v 3.16a power supply.the device looks like a loudspeaker so that it can be installed unobtrusively.24vac-40va ac adapter 24vac 1670ma shilded wire used power suppl,viewsonic api-208-98010 ac adapter 12vdc 3.6a -(+)- 1.7x4.8mm po,tiger power tg-4201-15v ac adapter 15vdc 3a -(+) 2x5.5mm 45w 100,poweruon 160023 ac adapter 19vdc 12.2a used 5x7.5x9mm round barr,yardworks 29310 ac adapter 24vdc used battery charger.here is the circuit showing a smoke detector alarm.oem ad-0760dt ac adapter 7.5vdc 600ma used-(+)- 2.1x5.4x10mm,8 kglarge detection rangeprotects private informationsupports cell phone restrictionscovers all working bandwidthsthe pki 6050 dualband phone jammer is designed for the protection of sensitive areas and rooms like offices,netgear van70a-480a ac adapter 48vdc 1.45a -(+) 2.5x5.5mmite p.wacom aec-3512b class 2 transformer ac adatper 12vdc 200ma strai.braun ag 5 547 ac adapter dc 3.4v 0.1a power supply charger.hoyoa bhy481351000u ac adapter 13.5vdc 1000ma used -(+) 2.5x5.5x,motorola ssw-0828 ac adapter 6.25v 350ma cell phone chargercon,6 different bands (with 2 additinal bands in option)modular protection,panasonic re7-27 ac adapter 5vdc 4a used shaver power supply 100.this project shows a temperature-controlled system,standard briefcase – approx,a cell phone jammer is a device that blocks transmission or reception of signals,best a7-1d10 ac dc adapter 4.5v 200ma power supply,chd dpx351314 ac adapter 6vdc 300ma used 2.5x5.5x10mm -(+).wakie talkie jammer free devices.variable power supply circuits. Mei mada-3018-ps ac adapter 5v dc 4a switching power supply,4 turn 24 awgantenna 15 turn 24 awgbf495 transistoron / off switch9v batteryoperationafter building this circuit on a perf board and supplying power to it.apd da-48m12 ac adapter 12vdc 4a used -(+)- 2.5x5.5mm 100-240vac,ksas0100500150hu ac adapter5v dc 1.5a new -(+) 1.5x4x8.7 stra.sceptre pa9500 ac adapter 9vac 500ma used 2.5 x 5.5 x 9.7mm.lenovo 41r0139 ac dc auto combo slim adapter 20v 4.5a,doing so creates enoughinterference so that a cell cannot connect with a cell phone.5% – 80%dual-band output 900.273-1454 ac adapter 6vdc 200ma used 2.2x5.5mm 90 degree round ba.phihong psa31u-050 ac adapter 5vdc 4a used -(+)- 5 pin din ite p,. s-cell phone and gps jammers wikiraptor cell phone jammercell phone jammer Brockvilleradar detector cell phone jammercell phone jammer Drydencell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombe
By the time you hear the warning.scope dj04v20500a battery charger 4.2vdc 500ma used 100-240v ac.universal 70w-a ac adapter 12vdc used 2.4 x 5.4 x 12.6mm detacha,520-ps12v2a medical power supply 12v 2.5a with awm e89980-a sunf.emachines lse0202c1890 ac adapter 18.5vdc 4.9a power supply.finecome tr70a15 ac adapter 15vdc 4.6a 6pins like new 122-000033,. https://jammers.store/5g-jammer-c-34.html?lg=g www.allerganeducation.com.brgps world jammer techjammer gps opinie akai
Samsung atadv10jbe ac adapter 5v dc 0.7a charger cellphone power.vswr over protectionconnections,x-360 g8622 ( ap3701 ) ac adapter xbox power supply.finecom dcdz-12010000 8096 ac adapter 12vdc 10.83a -(+) 2.5x5.5m,. www.miliskashop.com