The tricky part would be eliminating non-stingray signals.
T-Mobile's HQ is in Bellevue, and I'm sure they have some test towers probably set up in their building. These signals can easily "get away from you."
I worked on Windows Phone, and we had a faraday cage setup with various different cellular networks coming in over the wire, which we would set up with different attenuation to test cellular radio handoff. One time someone left the door open, and the whole floor of the building roamed over to the UK. It was not a good day for international roaming charges.
Yeah, there's a lot of legwork to be done if you want to use this kind of data, but it's legwork that can be distributed fairly easily. People can check public listings for this or that tower type, carriers document their test setups, etc. Once you weed out the strange but not that strange stuff you probably see a few like the one in Sea-Tac.
T-Mobile's HQ is in Bellevue, and I'm sure they have some test towers probably set up in their building. These signals can easily "get away from you."
I worked on Windows Phone, and we had a faraday cage setup with various different cellular networks coming in over the wire, which we would set up with different attenuation to test cellular radio handoff. One time someone left the door open, and the whole floor of the building roamed over to the UK. It was not a good day for international roaming charges.