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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 | 39° 00′ 00.0″ N 77° 03′ 25.0″ W39.000000, -77.056944 |
|---|---|
| NAD27 | 38° 59′ 59.6″ N 77° 03′ 26.1″ WNOAA NADCON 5 |
| UTM (NAD27) | UTM Zone 18: 4,318,569.7 m N, 321,846.8 m E |
| Ground elevation | 90.2 m (296 ft) AMSLFCC terrain service, USGS 1 arc-second data |
Census geography
| State | MarylandGEOID 24 |
|---|---|
| County | Montgomery CountyGEOID 24031 |
| Place | Silver Spring CDPGEOID 2472450 |
| County subdivision | District 13GEOID 2403191160 |
| Urban area | Washington--Arlington, DC--VA--MD Urban AreaGEOID 92242 |
| Census tract | Census Tract 7027GEOID 24031702700 |
| Census block | Block 5006GEOID 240317027005006 |
| Congressional district | Congressional District 8GEOID 2408 · 120th Congressional Districts |
| State senate district | State Senate District 18GEOID 24018 · 2026 State Legislative Districts - Upper |
| State house district | State Legislative District 18GEOID 24018 · 2026 State Legislative Districts - Lower |
| 2020 block population | 202 |
| FCC market areas | CMA008, BEA013, MTA010, BTA461, PEA005FCC 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 | 2,263 km (1,406 mi) |
| Canadian border | 455 km (283 mi) |
More than 320 km from both borders: no international FM coordination limits apply here (§73.207(b), §74.1235(d)).
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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.