[time-nuts] Jamming GPS

[geo at drbertges.de]

Hi,

for nonmilitary GNSS receiver, you do not need a wide band signal for jamming.
You only need a carrier with a signal power, sufficient to screw down the
AGC in the GNSS receiver's front end.

... and as a purpose for a military jamming exercise ... think of the
successfull detection of a jammer or the transmission of simulated signals
with a higher signal power as the satellite signals (using the "near/far"
problem of pseudolite/satellite signals).

I totally agree ... unintended emissions are awfull problems !

Your GNSS receiver (better the AGC !) will not only "accept" signals on
the L1 frequency, but on all the image frequencies of the mixer stages in the
RF front end.

The modulation type doesn't matter ... it's only the signal power ;-)

Best regards

Martin