On Aug 22, 11:19 am, Jon wrote:
On Aug 22, 7:47 am, Denny wrote:

GPS has become the navigation tool of choice...
The jamming of GPS is so trivial that any reasonably bright 14 year
old, can manage it - and within his allowance to boot..
Some older navcoms will jam the gps in the plane when tuned to certain
frequencies... A quick google search on the radio models and those
certain frequencies is enough information for one to build a wide area
gps jammer...

It used to be the gov't worried about a terrorist using the GPS to
guide a weapon to a precise point... Whereas, they should worry about
a terrorist blocking GPS over a wide area on a dark and stormy night,
with airliners unable to land, ships losing navigation near the coast,
etc...

denny

They should but they probably aren't as much as some might think they
should be, given the ability to mitigate against it. The old measures/
counter-measures game.

The cool thing about a jammer, is that it has to emit something. A
single source for wide-area jamming is fairly easy to detect. There's
a company just north of here in Boston (Mayflower, used to be in
Billerica, moved down the road to Burlington) that's got a design with
phased arrays of antennae that are used to DF on the source, quite
effectively.

http://www.mayflowercom.com/products.html

Happy mitigating

Regards,
Jon

A HARM missile tuned into the jammer's frequency would be a pretty
effective deterent...