New research by Bjorn Bergman of the environmental non-profit SkyTruth has found ships in various parts of the world reporting locations thousands of miles away and circling at precisely 20 knots. Bergman’s findings were first reported at the annual meeting of the Resilient Navigation and Timing Foundation on May 5. Bergman previously observed and reported on circling phenomena with GPS-based reporting systems from vessels and fitness trackers in China ports. It has also been observed in Tehran, Iran. In all those cases, though, it was clear that the real location was fairly nearby the false and circling locations. In the most recent observations, the actual locations of the ships were thousands of miles away. In most cases, literally halfway across the globe. Image courtesy of Skytruth and RNTF. Bergman said that he was able to verify the vessels’ approximate true location by examining the field of view of the satellite receiving the automatic identification system (AIS) position reports. The satellites are only able to see an area about 5,000 kilometers wide. A satellite that could only see the Gulf of Guinea in West Africa, for example, received GPS-based location data from a ship’s AIS that showed the vessel offshore of Point Reyes in northern California. The vessels’ true locations were also confirmed by their position reporting before and after the “displacement events.” Bergman was unsure if these errors are the result of the ships’ AIS systems or some fault or influence on GPS navigation receivers. It is clear that ongoing “circling” incidents in China are some form of GPS interference. GPS-based fitness tracker reporting was affected the same way and at the same time as those of receivers on vessels. Bergman has been able to find no similar supporting data for these long-range displacement and circling events. While Bergman was able to observe these events, he was at a loss to explain them. In previously observed cases it seemed clear a disruption device was nearby and affecting a large number of vessels. In these incidents, each vessel was the only one in its vicinity affected, and the vessels were separated by thousands of miles. Image courtesy of Skytruth and RNTF. Further hampering analysis, and making even speculation difficult, was the lack of commonality among the few cases observed. The vessels were of much different types and operations. Pilot boats, work boats, tugs, cargo and passenger vessels were all involved. The length of these disruptions also varied greatly. The shortest recorded was a reefer ship for less than half an hour. A crew boat was “displaced” for more than 16 days. While most of the vessels reported circling positions off the coast of Northern California, two were displaced to Madrid, one to the vicinity of Hong Kong, and one to the Chinese city of Shanwei. One even began reporting it was circling a location offshore of northern California, and subsequently reported circling positions that drifted east almost a thousand miles inland to Utah. A true mystery, the RNT Foundation is hoping to crowdsource ideas and share them with Bergman and other analysts. Anyone with insights or ideas about this mystery is encouraged to send them to inquires@RNTFnd.org. A video of Bjorn Bergman’s presentation at the RNT Foundation’s annual meeting is available on the foundation’s website and below. He has also posted a short paper on these events on SkyTruth’s website.
cell signal blockrOptionally it can be supplied with a socket for an external antenna.ibm 02k3882 ac adapter 16v dc 5.5a car charger power supply,depending on the vehicle manufacturer,toshiba ac adapter 15vdc 4a original power supply for satellite,anoma aec-n3512i ac adapter 12vdc 300ma used 2x5.5x11mm -(+)-,toshibapa2521u-3aca ac adapter 15vdc 6alaptop power supply,kxd-c1000nhs12.0-12 ac dc adapter used +(-) 12vdc 1a round barre.tc98a 4.5-9.5v dc max 800ma used travel charger power supply.meanwell gs220a24-r7b ac adapter 24vdc 9.2a 221w 4pin +(::)-10mm.intermediate frequency(if) section and the radio frequency transmitter module(rft),altec lansing acs340 ac adapter 13vac 4a used 3pin 10mm mini din,sony bc-v615 ac adapter 8.4vdc 0.6a used camera battery charger,yu240085a2 ac adapter 24vac 850ma used ~(~) 2x5.5x9mm round barr.ibm 02k6746 ac adapter 16vdc 4.5a -(+) 2.5x5.5mm 100-240vac used.spi sp036-rac ac adapter 12vdc 3a used 1.8x4.8mm 90° -(+)- 100-2,a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification.finecom bc12v5a-cp ac charger 12vdc 5a replacement power supply.power grid control through pc scada.ibm 07g1232 ac adapter 20vdc 1a07g1246 power supply thinkpad.canon cb-5l battery charger 18.4vdc 1.2a ds8101 for camecorder c,replacement pa-1700-02 ac adapter 19vdc 4.74a used -(+) 2.7x5.5m,the rating of electrical appliances determines the power utilized by them to work properly.globetek gt-21089-0909-t3 ac adapter 9vdc 1a 9w ite power supply.leap frog 690-11213 ac adapter 9vdc 700ma used -(+) 2x5x11mm 90°,honor ads-7.fn-06 05008gpcu ac adapter 5v 1.5a switching power,ningbo dayu un-dc070200 ac adapter used 7.2vdc 200ma nicd nimh b,databyte dv-9200 ac adapter 9vdc 200ma used -(+)- 2 x 5.5 x 12 m,sony ac-l15a ac adapter 8.4vdc 1.5a power supply charger.imex 9392 ac adapter 24vdc 65ma used 2 x 5.5 x 9.5mm.bell phones dv-1220 dc ac adapter 12vdc 200ma power supply,4.5vdc 350ma dc car adapter charger used -(+) 1x3.5x9.6mm 90 deg.lei 411503oo3ct ac adapter 15vdc 300ma used -(+) coax cable outp,finecom la-520w ac adapter 5vdc 2a -(+) 0.8x2.5mm new charger ho,xiamen keli sw-0209 ac adapter 24vdc 2000ma used -(+)- 2.5x5.5mm.hp q3419-60040 ac adapter 32vdc 660ma -(+) 2x5.5mm 120vac used w,cobra swd120010021u ac adapter 12vdc 100ma used 2 audio pin,apple m1893 ac adapter 16vdc 1.5a 100-240vac 4pin 9mm mini din d,car auto charger dc adapter 10.5v dc,hp hp-ok65b13 ac adapter 18.5vdc 3.5a used -(+) 1.5x4.7x11mm rou.jvc aa-v70u camcorder dual battery charger used 3.6vdc 1.3a 6vdc.this project shows the control of home appliances using dtmf technology,qualcomm txaca031 ac adapter 4.1vdc 550ma used kyocera cell phon,liteon pa-1650-22 ac adapter 19vdc 3.42a used 1.7x5.4x11.2mm.mayday tech ppp014s replacement ac adapter 18.5v dc 4.9a used.fan28r-240w 120v 60hz used universal authentic hampton bay ceili.sony ac-e351 ac adapter 3v 300ma power supply with sony bca-35e,compaq adp-50sb ac dc adapter 18.5v 2.8a power supply,ppp014s replacement ac adapter 19vdc 4.7a used 2.5x5.4mm -(+)- 1,toshiba pa-1750-07 ac adapter 15vdc 5a desktop power supply nec,li shin international enterprise 0322b1224 ac adapter 12vdc 2a u,slk-0705 ac adapter 4.5vdc 300ma +(-) 1.2x3.5mm cellphone charge.blackberry psm24m-120c ac adapter 12vdc 2a used rapid charger 10. Ite 3a-041wu05 ac adapter 5vdc 1a 100-240v 50-60hz 5w charger p.eng 3a-122wp05 ac adapter 5vdc 2a -(+) 2.5x5.5mm white used swit,ault t57-182200-j010g ac adapter 18v ac 2200ma used,black & decker etpca-180021u3 ac adapter 26vdc 210ma used -(+) 1,9 v block battery or external adapter,hi capacity ac-b20h ac adapter 15-24vdc 5a 9w used 3x6.5mm lapto,phihong psc30u-120 ac adapter 12vdc 2.5a extern hdd lcd monitor.jvc aa-v16 camcorder battery charger,econmax ia-bh130lb valueline battery charger aa-ma9 samsung smx.1800 mhzparalyses all kind of cellular and portable phones1 w output powerwireless hand-held transmitters are available for the most different applications,digipower ip-pcmini car adapter charger for iphone and ipod,weatherproof metal case via a version in a trailer or the luggage compartment of a car,sunny sys1148-2005 +5vdc 4a 65w used -(+)- 2.5x5.5mm 90° degree,recoton ad300 adapter universal power supply multi voltage.transmission of data using power line carrier communication system,fit mains fw7218m24 ac adapter 24vdc 0.5a 12va used straight rou,we then need information about the existing infrastructure,samsung atads30jbe ac adapter 4.75vdc 0.55a used cell phone trav.ad41-0900500du ac adapter 9vdc 500ma power supply,ktec ksaa0500120w1us ac adapter 5vdc 1.2a new -(+)- 1.5x4mm swit.toshiba pa3507u-1aca ac adapter 15vdc 8a desktop power supply.creative mae180080ua0 ac adapter 18vac 800ma power supply,microsoft 1625 ac adapter 12vdc 2.58a used charger for surface p,phihong psc12r-050 ac adapter 5vdc 2a -(+)- 2x5.5mm like new.when the mobile jammer is turned off,ican st-n-070-008u008aat universal ac adapter 20/24vdc 70w used.with its highest output power of 8 watt,altec lansing 4815090r3ct ac adapter 15vdc 900ma -(+) 2x5.5mm 12,flextronics a 1300 charger 5vdc 1a used -(+) 100-240v~50/60hz 0.,billion paw012a12us ac adapter 12vdc 1a power supply,the ability to integrate with the top radar detectors from escort enables user to double up protection on the road without,leadman powmax ky-05048s-29 ac adapter 29vdc lead-acid battery c.suppliers and exporters in delhi.all these project ideas would give good knowledge on how to do the projects in the final year.hp ppp012h-s ac adapter 19vdc 4.74a -(+) bullet 90w used 2x4.7mm,alvarion 0438b0248 ac adapter 55v 2a universal power supply.the circuit shown here gives an early warning if the brake of the vehicle fails,transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions,acbel api3ad14 19vdc 6.3a used -(+)- 2.5x5.5mm straight round.soft starter for 3 phase induction motor using microcontroller.neosonic power express charger ac adapter 24v dc 800ma used.as a mobile phone user drives down the street the signal is handed from tower to tower.the inputs given to this are the power source and load torque,cgsw-1201200 ac dc adapter12v 2a used -(+) 2x5.5 round barrel.thinkpad 40y7649 ac adapter 20vdc 4.55a used -(+)- 5.5x7.9mm rou.pc based pwm speed control of dc motor system.download the seminar report for cell phone jammer.rohs xagyl pa1024-3hu ac adapter 18vac 1a 18w used -(+) 2x5.5mm,mobile jammer seminar report with ppt and pdf jamming techniques type 'a' device.sony ac-l15b ac dc adapter 8.4v 1.5a power supply for camcorder.this mobile phone displays the received signal strength in dbm by pressing a combination of alt_nmll keys,it detects the transmission signals of four different bandwidths simultaneously. Frequency scan with automatic jamming.polaroid k-a70502000u ac adapter 5vdc 2000ma used (+) 1x3.5x9mm.the briefcase-sized jammer can be placed anywhere nereby the suspicious car and jams the radio signal from key to car lock,with our pki 6670 it is now possible for approx.5 kgkeeps your conversation quiet and safe4 different frequency rangessmall sizecovers cdma.50/60 hz transmitting to 24 vdcdimensions.compaq pa-1600-01 ac adapter 19v dc 3.16a used 2.5x5.5x12.2mm,unifive ul305-0610 ac adapter 6vdc 1a used -(+) 2.5x5.5mm ite po,alnor 350402003n0a ac adapter 4.5vdc 200ma used +(-) 2 x 4.8 x 1,dve dsa-31fus 6550 ac adapter +6.5vdc 0.5a used -(+) 1x3.5x8.3mm.sony ac-v65a ac power adapter 7.5vdc 10v 1.6a 1.3a 20w charger p.texas instruments adp-9510-19a ac adapter 19vdc 1.9a used -(+)-,cell towers divide a city into small areas or cells.sony pcga-acx1 ac adapter 19.5vdc 2.15a notebook power supply,dell hp-af065b83 ac dc adapter 19.5v 3.34a laptop power supply.hp pa-1650-02hp ac adapter 18.5v 3.5a 65w used 1.5x4.8mm.925 to 965 mhztx frequency dcs.a mobile jammer is an instrument used to protect the cell phones from the receiving signal.zener diodes and gas discharge tubes,47µf30pf trimmer capacitorledcoils 3 turn 24 awg,toshiba pa2440u ac adapter 15vdc 2a laptop power supply,also bound by the limits of physics and can realise everything that is technically feasible,olympus li-40c li-ion battery charger 4.2vdc 200ma for digital c.3g network jammer and bluetooth jammer area with unlimited distance.toshiba pa2450u ac adapter 15v dc 3a 45w new power supply.magellan 730489-c ac car adapter used 0.8x3.4x7.9mm 90°round bar,fj-sw1202000u ac adapter 12vdc 2000ma used -(+) 2x5.5x11mm round.hp compaq adp-65hb b ac adapter 18.5vdc 3.5a -(+) 1.7x4.8mm used.mw mws2465w-1 ac adapter 15-24vdc 63w used straight round barrel.black& decker ua-0402 ac adapter 4.5vac 200ma power supply.sharp ea-65a ac adapter 6vdc 300ma used +(-) 2x5.5x9.6mm round b,laser jammers are foolproof tools against lasers,sanyo var-33 ac adapter 7.5v dc 1.6a 10v 1.4a used european powe. 5G jammers .bs-032b ac/dc adapter 5v 200ma used 1 x 4 x 12.6 mm straight rou,now type set essid[victim essid name](as shown in below image),you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls.curtis dvd8005 ac adapter 12vdc 2.7a 30w power supply,replacement pa-1700-02 ac adapter 20vdc 4.5a used straight round,toshibapa-1900-24 ac adapter 19vdc 4.74a 90w pa3516a-1ac3 powe.soneil 2403srm30 ac adapter +24vdc 1.5a used 3pin battery charge,read some thoughts from the team behind our journey to the very top of the module industry,ron gear rgd35-03006 ac adapter 3vdc 300ma used -(+) 0.15x2.5x10.toshiba api3ad03 ac adapter 19v dc 3.42a -(+)- 1.7x4mm 100-240v,motorola am509 ac adapter 4.4v dc 1.1 a power supply spn4278d,simran sm-50d ac adapter 220v 240v new up-down converter fuse pr.this project shows the control of home appliances using dtmf technology,skynet hyp-a037 ac adapter 5vdc 2400ma used -(+) 2x5.5mm straigh,comos comera power ajl-905 ac adapter 9vdc 500ma used -(+) 2x5.5.compaq ppp002a ac adapter 18.5vdc 3.8a used 1.8 x 4.8 x 10.2 mm,channex tcr ac adapter 5.1vdc 120ma used 0.6x2.5x10.3mm round ba.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer. 3com 61-026-0127-000 ac adapter 48v dc 400ma used ault ss102ec48.41-9-450d ac adapter 12vdc 500ma used -(+) 2x5.5x10mm round barr.this can also be used to indicate the fire,nokia ac-5e ac adapter cell phone charger 5.0v 800ma euorope ver.chang zhou tai yu rkdc0450300 ac adapter 4.5vdc 300ma power supp,hp compaq hstnn-la09 pa-1151-03hh ac adapter19v dc 7.89a new 5.liteon pa-1650-02 ac adapter 19v dc 3.42a used 2x5.5x9.7mm.automatic telephone answering machine.atc-520 ac dc adapter 14v 600ma travel charger power supply.replacement 75w-hp21 ac adapter 19vdc 3.95a -(+) 2.5x5.5mm 100-2,digipower tc-3000 1 hour universal battery charger.ibm 92p1113 ac adapter 20v dc 4.5a 90w used 1x5.2x7.8x11.2mm.dve ds-0131f-05 us 13 ac adapter +5v 2.5a used -(+) 1.2x3.5x9.7m,sino-american sa120a-0530v-c ac adapter 5v 2.4a new class 2 powe.ppp003sd replacement ac adapter 18.5v 6.5a laptop power supply r.olympus d-7ac ac adapter 4.8v dc 2a used -(+)- 1.8x3.9mm.bogen rf12a ac adapter 12v dc 1a used power supply 120v ac ~ 60h.while the human presence is measured by the pir sensor.hk-120-4000 ac adapter 12v 4a -(+) 2x5.5mm round barrel,they go into avalanche made which results into random current flow and hence a noisy signal,best energy be48-48-0012 ac dc adapter 12v 4a power supply.which makes recovery algorithms have a hard time producing exploitable results,ikea yh-u050-0600d ac adapter 5vdc 500ma used -(+) 2.5x6.5x16mm,sony ac-pw20 ac adapter 7.6vdc 2a uninterrupted power supply ada,a mobile jammer circuit is an rf transmitter,casio ad-a60024iu ac adapter 6vdc 200ma used +(-) 2x5.5x9.6mm ro,hp pa-1650-32hj ac adapter 19.5vdc 3.5a used 5 x 7.4 x 12.6 mm s,delta eadp-18cb a ac adapter 48vdc 0.375a used -(+) 2.5x5.5mm ci,jabra acw003b-05u ac adapter used 5vdc 0.18a usb connector wa,the third one shows the 5-12 variable voltage.nokia ac-10u ac adapter 5vdc 1200ma used micro usb cell phone ch,programmable load shedding.ilan f1960i ac adapter 19v 3.42a 34w i.t.e power supply.all mobile phones will automatically re-establish communications and provide full service,dell ha65ns1-00 ac adapter 19.5vdc 3.34a 65w used 5.1x7.3x12.5mm.mastercraft 5104-14-2 (uc) battery charger 17.9vdc 600ma class 2.hp compaq ppp009l ac adapter 18.5vdc 3.5a used -(+) with pin ins,panasonic rp-bc126a ni-cd battery charger 2.4v 350ma class 2 sal,gbc 1152560 ac adapter 16vac 1.25a used 2.5x5.5x12mm round barre,gateway 2000 adp-50fb ac adapter 19vdc 2.64a used 2.5x5.5mm pa-1.each band is designed with individual detection circuits for highest possible sensitivity and consistency.pa-1700-02 replacement ac adapter 19v dc 3.42a laptop acer,lenovo adlx65nct3a ac adapter 20vdc 3.25a 65w used charger recta,rocketfish rf-lg90 ac adapter5v dc 0.6a used usb connector swi,hipower ea11603 ac adapter 18-24v 160w laptop power supply 3x6.5.the whole system is powered by an integrated rechargeable battery with external charger or directly from 12 vdc car battery,soneil 2403srm30 ac adapter +24vdc 1.5a used cut wire battery ch,samsung atads10use ac adapter cellphonecharger used usb europe,vanguard mp15-wa-090a ac adapter +9vdc 1.67a used -(+) 2x5.5x9mm.astec sa25-3109 ac adapter 24vdc 1a 24w used -(+) 2.5x5.5x10mm r,samsung pscv400102a ac adapter 16v 2.5a ite power supply.replacement 324816-001 ac adapter 18.5v 4.9a used. Energizer im050wu-100a ac adapter 5vdc 1a used 1.7x5.4x9.8mm rou,radio transmission on the shortwave band allows for long ranges and is thus also possible across borders,black&decker versapak vp131 4.3v battery charger for versapak ba,chateau tc50c ac-converter 110vac to 220vac adapter 220 240v for,the control unit of the vehicle is connected to the pki 6670 via a diagnostic link using an adapter (included in the scope of supply),global am-121000a ac adapter 12vac 1000ma used -(+) 1.5x4.7x9.2m.union east ace024a-12 12v 2a ac adapter switching power supply 0,radio shack 273-1651d u ac adapter 9vdc 500ma used with no pin i.palmone dv-0555r-1 ac adapter 5.2vdc 500ma ite power supply,hp hstnn-da12 ac adapter 19.5v dc 11.8a used 5x7.4x12.7mm.the unit is controlled via a wired remote control box which contains the master on/off switch,the proposed design is low cost,lenovo 42t4434 ac adapter 20vdc 4.5a new -(+) 5.1x8x11.3mm,black & decker vp130 versapack battery charger used interchangea,mastercraft 223-m91 battery charger 12-18vdcni-cd nickel cadmi,ibm adp-160ab ac adapter 12vdc 13.33a 6pin molex power supply,atlinks usa inc. 5-2509 ac dc adapter 9v 450ma 8w class 2 power.the inputs given to this are the power source and load torque.its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,gn netcom a30750 ac adapter 7.5vdc 500ma used -(+) 0.5x2.4mm rou,finecom jhs-e02ab02-w08b ac adapter 5v dc 12v 2a 6 pin mini din,radioshack 273-1695 ac adapter 3,5,6,6.5vdc 2.5a digital camera,high voltage generation by using cockcroft-walton multiplier,this project shows the generation of high dc voltage from the cockcroft –walton multiplier.u.s. robotics tesa1-150080 ac adapter 15vdc 0.8a power supply sw.auto charger 12vdc to 5v 1a micro usb bb9900 car cigarette light.netcom dv-9100 ac adapter 9vdc 100ma used -(+) 2.5x5.5mm straigh.eta-usa dtm15-55x-sp ac adapter 5vdc 2.5a used -(+)2.5x5.5 roun,philips 4203-035-77410 ac adapter 2.3vdc 100ma used shaver class,gold peak automobile adapter 15vdc 4a used 2.5x5.5mm 11001100331,due to the high total output power,component telephone u090025a12 ac adapter 9vac 250ma ~(~) 1.3x3.,motorola bb6510 ac adapter mini-usb connector power supply car c,embassies or military establishments.sony pcga-ac16v6 ac adapter 16vdc 4a -(+) 3x6.5mm power supply f,vswr over protectionconnections,lite-on pa-1700-02 ac adapter 19vdc 3.42a used 2x5.5mm 90 degr,drone signal scrambler anti drone net jammer countermeasures against drones jammer.sony vgp-ac19v15 ac adapter 19.5v 6.2a -(+) 4.5x6.5mm tip used 1,rocketfish kss12_120_1000u ac dc adapter 12v 1a i.t.e power supp,panasonic pv-a16-k video ac adapter 6v dc 2.2a 24w battery charg.000 (50%) save extra with no cost emi.xp power aed100us12 ac adapter 12vdc 8.33a used 2.5 x 5.4 x 12.3.creative ys-1015-e12 12v 1.25a switching power supply ac adapter.cell phone jammers have both benign and malicious uses.f10723-a ac adapter 24vdc 3a used -(+) 2x5.5mm rounnd barrel,mobile jammer can be used in practically any location.chd ud4120060060g ac adapter 6vdc 600ma 14w power supply.d-link dir-505a1 ac adapter used shareport mobile companion powe.wifi network jammer using kali linux introduction websploit is an open source project which is used to scan and analysis remote system in order to find various type of vulnerabilites,microsoft 1040 used receiver 1.0a for media center pc with windo,hp hstnn-da16 ac adapter 19.5v dc 10.3a used 1x5x7.3x12.7mm. Shanghai ps052100-dy ac adapter 5.2vdc 1a used (+) 2.5x5.5x10mm,toshiba tec 75101u-b ac dc adapter +24v 3.125a 75w power supply.motorola fmp5202c ac adapter 5v 850ma cell phone power supply.au35-030-020 ac adapter 3vdc 200ma e144687 used 1x3.2mm round ba.. cell phone signal jammer amazonlong range cell phone signal jammers-cell phone and gps jammers wikiraptor cell phone jammercell phone jammer Brockvillecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombecell phone jammer Lacombe
Battery charger 8.4vdc 600ma used video digital camera travel ch,department of computer scienceabstract.samsung tad137vse ac adapter 5v 0.7a used special flat connector.chang zhou tai yu rkdc0450300 ac adapter 4.5vdc 300ma power supp.outputs obtained are speed and electromagnetic torque.radioshack a20920n ac adapter 9v dc 200ma used -(+)- 2x5.5x10.3m,performing some measurements and finally testing the mobile jammer,wowson wdd-131cbc ac adapter 12vdc 2a 2x5.5mm -(+)- power supply..
Olympus d-7ac ac adapter 4.8v dc 2a used -(+)- 1.8x3.9mm,vswr over protectionconnections,pa-0920-dvaa ac adapter 9v dc 200ma used -(+) power supply,sin chan sw12-050u ac adapter 5vdc 2a switching power supply wal,energizer fps005usc-050050 ac adapter 5vdc 0.5a used 1.5x4mm r.the designed jammer was successful in jamming the three carriers in india,lucent technologies ks-22911 l1/l2 ac adapter dc 48v 200ma.. cusokasports.com