reply to post by FosterVS
I think the blue dots are cell site locations. The problem is in the US, cell sites are no longer documented by the FCC. Or rather the documentation
is haphazard. I will attempt to explain this, but I'm not an insider to the cellular business, so this is only my interpretation of what I have
Presently, the FCC assigns regions to cellular carriers. So you win an auction, and you own spectrum in a region. If you can get the local governments
to agree to your cell site (and the FAA if meets some airport proximity regulation), you can put the cell site up wherever you want. Obviously the
land owner is in the mix of approvals. With digital service, there are lots of cell sites just slapped on the sides of buildings. It became a mess for
the FCC to approve all these scattered sites.
But some towers do show up int the FCC database. Now why exactly some are documented and others are not isn't clear to me. The ones that are
documented are always on a real tower as opposed to slapped up on the side of a building. The there are towers that are not on the FCC database.
Now onto the blue dot at Groom Lake from open signal map. Maybe they have a tower, and maybe not. Most of the websites that do cellular signal maps
use a database provided by Google. Google bought some company that created the database. The trouble is the database is just crap. I've gone to
locations where the cell sites are supposedly located and there is nothing there.
There is no direct search engine for these sites. Rather google provides an API for the database. There is no way to offer to correct this database.
Google being google, they can't be contacted by mere mortals.You need to be a developer of some sort. [It's like all those nuclear explosions on
Google Earth "community" on the wrong side of the highway. There is no responsible person to contact to remove them.]
In Tonopah, the cell towers are at n38.051753 w117.226149 and n38.094432 w117.186456. But open signal map shows this:
open signal map for Tonopah
The vendor maps are pretty useless too. The AT&T map shows coverage near Groom Lake Road. This is because they own a site in the hills in Alamo, but
that site is not active yet. The T-Mobile maps depend on data from their roaming partners.
I do believe the "hits" on open signal maps are legit. They use the gps in the phone. There are other services with the same idea, but none I saw
with hits in the restricted zone. I assume the NTS hit is on Verizon, but the open signal map interface is so bad that you can't see the vendor.