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Broadcast site profile
Enter an address or coordinates to see the site's NAD83 and NAD27 coordinates, ground elevation, county and districts, the FM zone and Mississippi side it falls in, and its distance to the Mexican and Canadian borders.
Location
| NAD83 | 29° 53′ 27.1″ N 97° 56′ 55.1″ W29.890861, -97.948639 |
|---|---|
| NAD27 | 29° 53′ 26.3″ N 97° 56′ 54.1″ WNOAA NADCON 5 |
| UTM (NAD27) | UTM Zone 14: 3,306,952.6 m N, 601,544.7 m E |
| Ground elevation | 232.3 m (762 ft) AMSLFCC terrain service, USGS 1 arc-second data |
Census geography
| State | TexasGEOID 48 |
|---|---|
| County | Hays CountyGEOID 48209 |
| Place | San Marcos cityGEOID 4865600 |
| County subdivision | San Marcos CCDGEOID 4820993430 |
| Urban area | San Marcos, TX Urban AreaGEOID 79201 |
| Census tract | Census Tract 102GEOID 48209010200 |
| Census block | Block 4001GEOID 482090102004001 |
| Congressional district | Congressional District 21GEOID 4821 · 120th Congressional Districts |
| State senate district | State Senate District 21GEOID 48021 · 2026 State Legislative Districts - Upper |
| State house district | State House District 45GEOID 48045 · 2026 State Legislative Districts - Lower |
| 2020 block population | 108 |
| FCC market areas | CMA075, BEA130, MTA007, BTA027, PEA035FCC 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)) |
|---|---|
| Mississippi River | WestNew call signs start with K (§73.3550(e)); FM translators use the §74.1235(b)(2) table |
| Mexican border | 276 km (171 mi) |
| Canadian border | 1,957 km (1,216 mi) |
- 125 to 320 km from Mexico: FM translators and boosters may exceed 50 W, with the limits of §74.1235(d)(2).
- Within 320 km of Mexico: FM stations follow the 1992 U.S.-Mexico FM Agreement (§73.207(b)(3)).
Next steps for this site
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Sources for this data
- Coordinates, address matching and census geography come from the U.S. Census Bureau Geocoder; FCC market areas and block population from the FCC Area API. Elevation of the ground: FCC terrain data. NAD27 and UTM: the National Geodetic Survey at NOAA (NADCON 5).
- FM zones are set by §73.205. The Mississippi River divides K and W call letters (§73.3550(e)) and the power tables for FM translators (§74.1235(b)). FM stations less than 320 km from Mexico or Canada are governed by the international agreements (§73.207(b)); boosters and translators in that zone have separate limits (§74.1235(d)).
- The borders, the river and zone lines are plotted from simplified public map data, so any site near a line is flagged for confirmation.
Intended for planning. Not produced by NOAA, the FCC or the Census Bureau.