On Jul 24, 1:12*pm, Bill D wrote:
On Jul 24, 12:44*pm, Greg Arnold wrote:





On 7/24/2011 11:29 AM, T wrote:

On Jul 24, 9:12 am, *wrote:
On Jul 24, 11:57 am, *wrote:

"Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today".

What kind of equipment do you think these truckers were using to jam
with?

Cheap. *Google....

I've seen intermittent loss of GPS signal at low altitude twice this
Summer... now I know why. *In both cases I was very close to a
highway.

Things that make you go "grrrrrrrrrrr."

-Evan Ludeman / T8

I know of no equipment carried by truckers that jam GPS. The FCC and
others would be very interested.
T

Why would truckers want to jam GPS? *Also, I did a Google search, and I
only see jammers that work within 30 feet.

From "The Economist":

"Such devices are illegal to sell or use, but they have become popular
with commercial drivers who object to their employers tracking their
every move. A jammer prevents a tracking device in the vehicle from
determining (and then reporting) its location and speed—but it also
disrupts GPS signals for others nearby."- Hide quoted text -

- Show quoted text -

I understand why the truckers would want to do this, more $$ in pocket
ultimately, but I don't understand why the FCC and Trucking Companies
would not do anything to stop it's use.
GPS receivers operate very, very close to the natural noise threshold
of their radio spectrum and are therefore very, very sensitive to
interference, could easily be 1/4th mile for an airborne receiver.
Enforcement is always a big problem so all we can do is stay away from
major hiways while flying.

I once lost a $500 model airplane to a trucker's 1KW CB rig when I
flew over him. In general they are unaware of the problems they create
with their Creative Fixes!