Hello,
We have a Pepwave MAX BR1 on a ocean going vessel, a few days ago I mounted a relatively large LTE outdoor antenna relatively close to the vessels navigational GPS antenna. Now we don’t have a GPS fix on the navigational screens about 50% of the time… 
Assuming that cellular is the source of the noise, which bands could it be?
We have observed and tried this in Norway only.
Thanks,
Vilhelm.