Universal Licensing System
WDU421
SOUTHWESTERN BELL TELEPHONE COMPANY
License details
| ULS identifier | 973904 |
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| Call sign | WDU421 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1990-08-24 |
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| Expiration | 2000-08-01 |
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| Cancellation | 1998-12-23 |
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| Frequency range | 2162 - 2174.8 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | BELL CITY, STODDARD, MO |
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| Coordinates | 37.0205833, -89.8131389 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-17 04:26:39 |
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Licensee
| Name | SOUTHWESTERN BELL TELEPHONE COMPANY |
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| Applicant type | C |
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| Location | ST LOUIS, MO |
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| Address | 801 N 11TH ST, RM 290, ST LOUIS, MO, 63101 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FXO | 2162.00000000 | | | | | |
| 1 | 1 | FXO | 2168.40000000 | | | | | |
| 1 | 2 | FXO | 2171.60000000 | | | | | |
| 1 | 1 | FXO | 2174.80000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 2162.00000000 | | 3M50F7W |
| 1 | 1 | 2168.40000000 | | 3M50F7W |
| 1 | 2 | 2171.60000000 | | 3M50F7W |
| 1 | 1 | 2174.80000000 | | 3M50F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 0.5 MI S OF, BELL CITY, STODDARD, MO | 37.02058333, -89.81313889 | 96.600 m | | 53.600 m overall | |
| 2 | R | | 37.17947222, -89.65063889 | 141.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | V | 33.9000 | 39.3000 | | |
| 1 | 2 | R | | | | 29.8000 | | | |
| 2 | 1 | T | | | H | 33.9000 | 39.3000 | | |
| 2 | 2 | R | | | | 29.8000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WDU421 | LICCNV |
| 1998-12-23 | WDU421 | LICAN |
| 1997-11-06 | WDU421 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 973904 | 2026-08-17 04:26:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WDU421 | ULS 973904 | 2026-08-17 04:26:39 |
| Status | C | ULS 973904 | 2026-08-17 04:26:39 |
| Service | CF | ULS 973904 | 2026-08-17 04:26:39 |
| Grant Date | 1990-08-24 | ULS 973904 | 2026-08-17 04:26:39 |
| Expiration Date | 2000-08-01 | ULS 973904 | 2026-08-17 04:26:39 |
| Cancellation Date | 1998-12-23 | ULS 973904 | 2026-08-17 04:26:39 |