Universal Licensing System
WRDU581
AT&T Mobility Spectrum, LLC
License details
| ULS identifier | 4182223 |
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| Call sign | WRDU581 |
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| Radio service | CF |
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| Status | A |
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| Grant date | 2019-07-23 |
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| Expiration | 2029-07-23 |
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| Frequency range | 6034.15 MHz |
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| Locations | 2 |
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| Representative location | FORT BENTON, CHOUTEAU, MT |
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| Coordinates | 47.8832778, -110.7368333 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:19 |
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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 | 6034.15000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 6034.15000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | NW 1/4 NW 1/4 S 32, R 8 E, T 25 N, FORT BENTON, CHOUTEAU, MT | 47.88327778, -110.73683333 | 943.700 m | GTOWER | 54.900 m structure / 57.900 m overall | |
| 2 | R | | 48.12330556, -110.33222222 | 929.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Commscope UHX8-59J RF | | V | 41.3000 | 48.4000 | | |
| 1 | 2 | R | Commscope UHX8-59J RF | | | 41.3000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-04 | WRDU581 | LIAUA |
| 2024-01-25 | WRDU581 | LIAUA |
| 2023-01-18 | WRDU581 | LIAUA |
| 2023-01-12 | WRDU581 | LIAUA |
| 2019-07-23 | WRDU581 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182223 | 2026-08-02 02:47:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDU581 | ULS 4182223 | 2026-08-02 02:47:19 |
| Status | A | ULS 4182223 | 2026-08-02 02:47:19 |
| Service | CF | ULS 4182223 | 2026-08-02 02:47:19 |
| Grant Date | 2019-07-23 | ULS 4182223 | 2026-08-02 02:47:19 |
| Expiration Date | 2029-07-23 | ULS 4182223 | 2026-08-02 02:47:19 |