[time-nuts] Jamming GPS

[John Green]

All the discussion regarding jamming GPS has been very interesting. Because
it is spread spectrum, I always assumed it would be difficult to jam GPS.
The Monterey Bay incident indicates that it is extremely easy to jam GPS.
So, as soon as another project is out of the way, I intend to do some
experiments, more of a practical than scientific nature. I have a Z3801 and
Tbolt to start with. I would also like to experiment with a hand held and a
GPS enabled cellphone. To prevent unintended interference, signal levels
will have to be carefully controlled and transmission time will have to be
kept short. I want to try CW as well as modulations of varying types. Any
suggestions as to the most effective modulation type to try?