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Enhancing Satellite Broadband Verification in Utah: Strategies and Insights

This project, conducted by the Utah AGRC in collaboration with various state partners, focuses on validating satellite broadband service through advanced GIS modeling. Utilizing tools like the ArcGIS Spatial Analyst and Digital Elevation Models, it aims to identify potential dead zones for satellite coverage. The integration of FCC consumer speed test data enhances accuracy, allowing for improved outreach and engagement with service providers. This initiative is essential for ensuring adequate broadband access in rural and underserved areas of Utah.

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Enhancing Satellite Broadband Verification in Utah: Strategies and Insights

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  1. Broadband Verification: Space & Frontier Bert Granberg & Rick Kelson Utah AGRC

  2. Utah NTIA Broadband Mapping and Planning Project • Grantee: Public Service Commission • Project Partners: • Governor’s Office of Economic Development • Department of Technology Services • AGRC (state GIS office) • Contractor: (~ 1/3 of yrs 1-2 budget) • IRC (Tempe AZ), Provider Engagement • Inventory, Outreach, NDAs, Technical Assistance, Some Verification

  3. FCC Consumer Speed Test Data 2 Topics • Satellite Modeling

  4. Satellite Coverage Provider Submissions • Providers suggest ubiquitous service • Relevance: • Meets minimum broadband speed definition • May be only option in locations • Question: Verification for this technology type, Effort?

  5. Can We Use GIS to Model Satellite Dead Zones? • ArcGIS Spatial Analyst Hillshade tool...with ‘Model Shadows’ functionality • Note: Viewshed tool doesn't work, observation point (satellite) would need to be within extent of GIS terrain model • 10 meter statewide Digital Elevation Model • Input Parameters: • Satellite Azimuth Position (Longitude) • varies by provider, available on web (ex. 111.1° W) • Satellite's angle above horizon --> TRIG analysis

  6. Trig for Satellite Angle Above Horizon • Geostationary Orbit Distance: 22236 Miles • Earth Radius: 3963 Miles • Observation Point: 39.5° N (avg. Utah Latitude) • SohCahToa: α Solution: Angle Above Horizon For Utah ~ 44.3 °

  7. Analysis Results: • Shadows exist (shown in Red) • North faces of steep-walled mountain & desert canyons • Designated or defacto wilderness • Very few structures • One exception found: • Timpanogos Cave Natl. Monument (below)

  8. Satellite Modeling Conclusions • Statewide Availability • Empirically: Not quite • Practically: Yes • Buildings, trees not accounted for • Satellite BB is probably last choice in urban areas • Trees not a huge UT issue • Analysis should hold for other satellite services More info: • http://gis.utah.gov/agrc-mobile-communications/satellite-broadband-service-terrain-shadow-modeling-for-utah

  9. FCC Speed Tests: • Data from FCC every month via submission site • Utah: 6000+ records in first 2 months • Three datasets: • 1) Browser-based speed tests • User supplied address --> Geocode • 2) Droid and iPhone Mobile App speed tests • Wifi OR Cell Network -based) • Lat/Long • 3) Deadzone reports • All tests  IP addresses of test machine –> arin.net

  10. American Registry of Internet Numbers (arin.net) • WhoIs? Service • IP --> Registering organization • Organization --> IP Blocks • Residual Anonymous IPs • Internal IP blocks • Third party registered blocks • "Service Provider Corporation"

  11. Speed Test Maps & Data • Master speed test table • Speed • Test Type • IP • Date, etc • Provider (from ARIN) • XY Coords (geocode) • Census Block ID Assignment • Speed test summary by census block (All or By Specific Provider) • Min Speed • Average • Max Speed • # of tests • Deadzone report points

  12. How to use for Validation: • Inclusion in provider feedback process? • Incorporate in confidence scoring of provider submissions? • Show as layer on state broadband interactive map? • Other uses?

  13. FCC Speed Test Conclusions • Loads of potential • Need more tests • UT is developing own speed test with visual address verification • Will promote test through PR outreach • Will combine results w/ FCC test & report to NTIA

  14. Questions and Discussion • Contact Info • Bert Granberg, Utah AGRC • bgranberg@utah.gov

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