[time-nuts] GPS Spoofing

[Magnus Danielson]

On 28/07/13 19:16, Bob Camp wrote:
> Hi
>
> If we are now down to a truck sized / house sized area, I'd claim that Loran-C is dead simple to jam. That's what the truck stop gizmos are aimed at.

There where truck-sized spare transmitters to be utilized in failure/war 
as I recall it.

The main reason LORAN-C was "hard" to jam wide-area, was that it would 
require a large antenna for good transmission properties, and that would 
be easy to detect and take out. DFing would also be possible, as such 
work has already been done in LORAN-C (recall the search of the false 
transmitter of the coast of Texas).

For smaller area, you can use a smaller antenna with worse performance 
but still achieve the goal.

Cheers,
Magnus