You might want to try a modern GPS receiver. I have some cheap (< $10-20) GPS modules with on board patch antennas that work indoors, sitting on the floor of the bottom level of a two story stucco-over-wire mesh house, away from windows, surrounded on all sides by tall trees, with the patch antenna face down on the floor. They acquire and track sats quite well.
You might want to try a modern GPS receiver. I have some cheap (< $10-20) GPS modules with on board patch antennas that work indoors, sitting on the floor of the bottom level of a two story stucco-over-wire mesh house, away from windows, surrounded on all sides by tall trees, with the patch antenna face down on the floor. They acquire and track sats quite well.
