Modern GPS receivers work surprisingly well, if not very accurately, from inside a single floor wood framed house... My oneplus one will pick up 6 satellites while standing in a central hallway 15'+ from any window. Should be accurate enough to get a location within 75'.
All bets are off if it is a concrete framed apartment building or something like that. I still find it amazing that anything works at -162 RSL. Thanks to tiny channel size and very basic modulation. On Feb 8, 2016 6:46 PM, "Bill Prince" <[email protected]> wrote: > Canopy NAT seems to break it with regularity. It might also fail if the > GPS location that it reports is not within a 1/4 mile of where the customer > address is. > > Also requires enough GPS (like near a window) to get a GPS lock. > > bp > <part15sbs{at}gmail{dot}com> > > > On 2/8/2016 3:34 PM, Ken Hohhof wrote: > > What are the typical reasons for these not to work?� From the user guide > it appears to use IPSEC, so I assume anything that prevents a VPN? > � > Verizon support told the customer they needed a Class A address.� > WTF?� Did they maybe mean it *can't* be a class A address?� Customer > uses 10.x.x.x addresses internally, behind Cisco ASA firewall (which I > don't manage). > � > I do see some udp/500 and udp/4500 packets, I think that means something > is using UDP for IPSEC NAT traversal? > > >
