Lightspeed bought a company that owned frequencies designated for satellite use then exploited a loophole to “augment” those low powered signals with high powered ground based transmitters. In other words the lightspeed system is a high powered ground based system using frequencies originally intended to be used by satellite systems like GPS. It seems it’s the the high power of the ground based transmitters next to GPS reciever frequencies set up for low power satellite signals that causes the problems. It’s like a top fuel V-8 running next to a weedeater, which will you hear?