[time-nuts] gps jamming in las vegas

[tom jones]

I noticed the jamming begin at 0542 today 7-4-12.
It's precisely at 5 minute intervals and lasting 75 seconds each time
My loss of signal is 1 second after each 5 minute interval (using atomic PDT).
Signal returns 75 seconds later at 17 seconds after the next minute.

Date 7-5-12	los = loss of signal    aos  aqusition of signal 
all times pdt
**  exact times of loss of signal	
los	   aos
0542
0547
0557 15
0602 54 -- 0603 23
0607 05 -- 0608 19
0612 05 -- 0613 18
0617 05 -- 0618 18 
0622 01 -- 0623 17  **
0627 02 -- 0628 18
0632 02 -- 0633 18
0637 02 -- 0638 17
0642 01 -- 0643 17  **
0647 01 -- 0648 17  **
0652 01 -- 0653 17  **
0657 01 -- 0658 17  **
0702 01 -- 0703 17  **
0707 01 -- 0708 17  **
0712 01 -- 0713 17  **
0717 01 -- 0718 17  **



I'm using sirf III & sirf demo all satelites signals drop from high 30's to the teens complete
loss of signal..
My magellan explorist 500 however looses only half the satellites every 5 minutes in exact 
syncronization with total loss of satellites on holux sirf III receiver.

Must be lightsquared wireless.... I've noticed wierd satellite reception on magellan explorist several months ago and wondered if it was lightsquared jamming... I'm sure of it now. exact same behavier from explorist today that I've seen it the past..

I havent monitored gps for months till today....