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Broadcast site profile
Type an address or drop in coordinates. You get the site's coordinates in NAD83 and NAD27, ground elevation, county and districts, which FM zone and side of the Mississippi it's on, and how close it is to the Canadian and Mexican borders.
Location
| NAD83 | 38° 38′ 55.1″ N 90° 18′ 28.4″ W38.648639, -90.307889 |
|---|---|
| NAD27 | 38° 38′ 54.9″ N 90° 18′ 28.0″ WNOAA NADCON 5 |
| UTM (NAD27) | UTM Zone 15: 4,281,013.3 m N, 734,298.4 m E |
| Ground elevation | 167.1 m (548 ft) AMSLFCC terrain service, USGS 1 arc-second data |
Census geography
| State | MissouriGEOID 29 |
|---|---|
| County | St. Louis CountyGEOID 29189 |
| County subdivision | Hadley townshipGEOID 2918929818 |
| Urban area | St. Louis, MO--IL Urban AreaGEOID 77770 |
| Census tract | Census Tract 2163GEOID 29189216300 |
| Census block | Block 1004GEOID 291892163001004 |
| Congressional district | Congressional District 1GEOID 2901 · 120th Congressional Districts |
| State senate district | State Senate District 4GEOID 29004 · 2026 State Legislative Districts - Upper |
| State house district | State House District 86GEOID 29086 · 2026 State Legislative Districts - Lower |
| 2020 block population | 196 |
| FCC market areas | CMA011, BEA096, MTA019, BTA394, PEA024FCC Area API: Cellular Market Area, Economic Area, Major and Basic Trading Areas, Partial Economic Area |
FCC rule zones
| FM zone (§73.205) | Zone II (§73.205(c)) — site is 11.1 km from the Zone I line as approximated here; confirm the zone (a city the line passes through is in Zone I) |
|---|---|
| Mississippi River | WestNew call signs start with K (§73.3550(e)); FM translators use the §74.1235(b)(2) table. Close to the river line as mapped here: confirm which bank |
| Mexican border | 1,380 km (857 mi) |
| Canadian border | 723 km (449 mi) |
More than 320 km from both borders: no international FM coordination limits apply here (§73.207(b), §74.1235(d)).
Next steps for this site
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RF Navigator runs the channel search, spacing and contour studies for a site, and Nexus Broadcast can take it from site to FCC filing.
Where this comes from
- Address matching, coordinates and census geography: the U.S. Census Bureau Geocoder. Block population and FCC market areas: the FCC Area API. Ground elevation: the FCC terrain service. NAD27 and UTM: NOAA's National Geodetic Survey (NADCON 5).
- FM zones follow §73.205; K and W call letters follow the Mississippi River (§73.3550(e)), as do the FM translator power tables (§74.1235(b)). Within 320 km of Canada or Mexico, FM stations follow the international agreements (§73.207(b)), and translators and boosters have their own limits (§74.1235(d)).
- Zone lines, the river and the borders are drawn from public map data and generalized, so sites close to a line are flagged to confirm.
For planning. Not a product of the Census Bureau, the FCC or NOAA.