Review and Teardown of a Cheap GPS Jammer

The article mentions the incident around Newark Airport where a truck driver using a GPS jammer was interfering with air traffic. Here&#x27;s an article from a local source if you&#x27;re interested in the details; he was fined $32k: <a href="http:&#x2F;&#x2F;www.nj.com&#x2F;news&#x2F;index.ssf&#x2F;2013&#x2F;08&#x2F;man_fined_32000_for_blocking_newark_airport_tracking_system.html" rel="nofollow">http:&#x2F;&#x2F;www.nj.com&#x2F;news&#x2F;index.ssf&#x2F;2013&#x2F;08&#x2F;man_fined_32000_for...</a>

It doesn&#x27;t go too far in depth; basically it says it&#x27;s got a signal generator and an amplifier and it should work in a 30 meter radius, give or take.<p>OTOH, short and to the point, nothing wrong with that. It also (importantly) notes there&#x27;s no jamming on other frequencies.

See also: <a href="https:&#x2F;&#x2F;arstechnica.com&#x2F;information-technology&#x2F;2017&#x2F;11&#x2F;australian-man-uses-snack-bags-as-faraday-cage-to-block-tracking-by-employer&#x2F;" rel="nofollow">https:&#x2F;&#x2F;arstechnica.com&#x2F;information-technology&#x2F;2017&#x2F;11&#x2F;austr...</a>

GPS jamming is a good way to have men in black show up at your doorstep. Source: a friend.

So is anyone making one that emits on all (or some useful subset of) the frequencies a modern smartphone uses, has a ~30mm range and is powered by the phone?<p>The Chinese could crank these out and have the to your door $3.99USD.

&gt; When using GPS receivers in city urban canyons with tall buildings, the shadowing and multi-path effects results in poor GPS signal reception and jammer range can be even hundreds of meters at street level.<p>That was something that I haven&#x27;t thought off. The jammer will have less interference from shadowing and will benefit from reflection of buildings, so in a city environment it interferes more than in open air.

Would have loved a straight on close up of the board. The PCB routing at high frequencies is always interesting to see.