The fine and jail time apply to the person operating the jammer. By the way, these "dozens of sites" are all too happy to turn over purchase records to law enf

The fine and jail time apply to the person operating the jammer. By the way, these "dozens of sites" are all too happy to turn over purchase records to law enforcement if asked. As for "it's a very difficult thing to police", a jammer is a transmitter, one that's powerful enough to drown out the signals it's designed to jam. Turning one on is like turning on a giant flashing billboard saying "ARREST ME" over your head; it's easy to follow the jamming signal back to the source with the right equipment, which, of course, the FCC and similar agencies have plenty of. Want some examples? "FCC Proposes $29K Fine For Employer That Jammed Employee Cell Phones" https://www.fcc.gov/document/fcc-proposes-29k-fine-employer-jammed-employee-cell-phones https://www.fcc.gov/document/fcc-proposes-29k-fine-employer-... "Florida Man Gets $48K Fine From FCC For Using Cell Phone Jammer" http://www.techtimes.com/articles/161146/20160526/florida-man-gets-48k-fine-from-fcc-for-using-cell-phone-jammer.htm http://www.techtimes.com/articles/161146/20160526/florida-ma... "FCC Fines Operator of GPS Jammer That Affected Newark Airport GBAS" http://www.insidegnss.com/node/3676 http://www.insidegnss.com/node/3676 "Man arrested for allegedly using cell phone jammer on train" http://www.cnet.com/news/man-arrested-for-allegedly-using-cell-phone-jammer-on-train/ http://www.cnet.com/news/man-arrested-for-allegedly-using-ce...