Carrier coverage battles make for amusing TV commercials. Calif PUC: "service where people live and work" Q consumers might want to answer with coverage maps: can you watch youtube? Can the kids check their homework assignment at the kitchen table? Can I use the Internet at my bus stop? Zoomed in to a local level, can the maps answer those Qs? -------------------------------- Exaggerated sweeping claims of excellent service could have an economic impact. Carriers have argued that govt subsidy should only be available where there is a demonstrated market failure. Wireless carriers want that applied in a technology- neutral manner. If a community seeking BB assistance is blocked by an incumbant carrier service claim,.. Crowd sourcing: This will sample from an underlying performance distribution. Without knowing the roughness of the underlying disto, it's hard to know what you're looking at. -------------------------- Looking at Verizon: Here's their map for W Santa Cruz. It is almost perfect. What this says is "LTE". The Verizon web page doesn't say what that means in terms of speed or BW. "Superfast" ---------------- The CPUC asks carriers to report performance data by census block. Green means 10-25 Mb/s. And at every point in this map, 3-6 Mb/s upload. Knowing there is a reproducible coverage defect, how large is it? ----------------------- SURVEY METHOD Pick a tool. Android is better than IOS. Ookla. calspeed, FCC Ookla is faster; uses less net resources (GB) and battery life than FCC and CalSpeed. Friendlier to data export. Talk at the Atlanta NANOG by Don Bowman (Sandvine). One of Bowman's points was that Ookla has poor quality control of their test nodes, coloring the results. Threshold: 6 Mb/s, 1.5 Mb/s <---- California standard Want: area encompasses a few cell sites and their served areas. Terrain is hills and coastal terraces. About 5 Sq Miles. Rule: no do overs. 800 points. Took all the data and turned it into a KML file. Green pin means "pass". Red means "fail". "Gold" means probable cell site.