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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 | 41° 24′ 55.1″ N 88° 16′ 19.2″ W41.415306, -88.272000 |
|---|---|
| NAD27 | 41° 24′ 55.0″ N 88° 16′ 19.0″ WNOAA NADCON 5 |
| UTM (NAD27) | UTM Zone 16: 4,585,426.1 m N, 393,698.4 m E |
| Ground elevation | 185.9 m (610 ft) AMSLFCC terrain service, USGS 1 arc-second data |
Census geography
| State | IllinoisGEOID 17 |
|---|---|
| County | Grundy CountyGEOID 17063 |
| County subdivision | Aux Sable townshipGEOID 1706303090 |
| Urban area | Chicago, IL--IN Urban AreaGEOID 16264 |
| Census tract | Census Tract 1.03GEOID 17063000103 |
| Census block | Block 2013GEOID 170630001032013 |
| Congressional district | Congressional District 16GEOID 1716 · 120th Congressional Districts |
| State senate district | State Senate District 53GEOID 17053 · 2026 State Legislative Districts - Upper |
| State house district | State House District 106GEOID 17106 · 2026 State Legislative Districts - Lower |
| 2020 block population | 0 |
| FCC market areas | CMA304, BEA064, MTA003, BTA078, PEA003FCC Area API: Cellular Market Area, Economic Area, Major and Basic Trading Areas, Partial Economic Area |
FCC rule zones
| FM zone (§73.205) | Zone I (§73.205(a)) |
|---|---|
| Mississippi River | EastNew call signs start with W (§73.3550(e)); FM translators use the §74.1235(b)(1) table |
| Mexican border | 1,696 km (1,054 mi) |
| Canadian border | 433 km (269 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.