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Scrambled cell-phone towers led investigators to a Florida man using a high-powered jammer to block reception along his commute.

Federal Communications Commission agents say Jason R. Humphrey used a jamming device between 2011 and 2013 while driving down Interstate 4 from his home in Seffner, Fla., to downtown Tampa, WTSP 10 reported for two years.

Humphrey, 60, said his goal was to make his daily commute safer by stopping people from talking on their cell phones, but jammers block emergency calls in addition to distracted-driving chatter.

Cell phones need to interact with a cell tower or base to transmit their signal, but the jamming device recreates that signal and interrupts tower reception for any cell phones within range. It's called a denial-of-service attack. MetroPCS noticed their towers were scrambled around certain times of day and along a certain route. When police approached Humphrey's vehicle, their scanners went dead.

The FCC is hitting Humphrey with the maximum fine of $48,000.



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  • 7 Comments
      • 8 Months Ago
      The idea may be appealing, but he's also jamming emergency calls by those around him.
      • 9 Months Ago
      How would someone call the hot-line if their cell phone is being jammed? LOL
      delsolo1
      • 9 Months Ago
      Humphrey is a modern day Robin Hood in my book
      Grrrrrrr
      • 9 Months Ago
      Great idea, but he went about it all wrong.
      Mr. Barrelhead
      • 8 Months Ago
      That man has a future with the phone companies !!!!!!
      • 8 Months Ago
      Just how did this man construct such a jamming device? To alter a cell phone and make it jam signals would require going into the phone itself. The phone is a sealed unit,. The componets are incredibly tiny, Or, did he build his jammer as a seperate piece of equipment.
        • 8 Months Ago
        YOU CAN BUY THE JAMMER ONLINE THEY ARE EXPENSIVE, YOU DON'T HAVE TO GET INTO THE PHONE, WITHIN A LIMITED RANGE THEY BLOCK THE CELL PHONE SIGNAL