Universal Licensing System
WRKB880
AT&T Mobility Spectrum, LLC
License details
| ULS identifier | 4361573 |
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| Call sign | WRKB880 |
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| Radio service | CF |
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| Status | A |
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| Grant date | 2020-12-08 |
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| Expiration | 2030-12-08 |
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| Frequency range | 10735 - 10855 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | LLano, LOS ANGELES, CA |
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| Coordinates | 34.4916667, -117.8263056 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:17 |
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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 | 10735.00000000 | | | | | |
| 1 | 2 | FXO | 10775.00000000 | | | | | |
| 1 | 1 | FXO | 10815.00000000 | | | | | |
| 1 | 2 | FXO | 10855.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 10735.00000000 | | 40M0D7W |
| 1 | 2 | 10775.00000000 | | 40M0D7W |
| 1 | 1 | 10815.00000000 | | 40M0D7W |
| 1 | 2 | 10855.00000000 | | 40M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 17001 E. Avenue W8, LLano, LOS ANGELES, CA | 34.49166667, -117.82630556 | 1015.900 m | MTOWER | 19.800 m structure / 21.300 m overall | |
| 2 | R | | 34.60822222, -117.82527778 | 833.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | ANDREW CORPORATION UHX6-107K LF | | V | 44.0000 | 0.4000 | | |
| 1 | 2 | R | ANDREW CORPORATION UHX4-107B RF | | | 40.4000 | | | |
| 2 | 1 | T | ANDREW CORPORATION UHX6-107K LF | | H | 44.0000 | 0.4000 | | |
| 2 | 2 | R | ANDREW CORPORATION UHX4-107B RF | | | 40.4000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-04 | WRKB880 | LIAUA |
| 2024-01-25 | WRKB880 | LIAUA |
| 2023-01-18 | WRKB880 | LIAUA |
| 2023-01-12 | WRKB880 | LIAUA |
| 2020-12-08 | WRKB880 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4361573 | 2026-08-02 02:47:17 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRKB880 | ULS 4361573 | 2026-08-02 02:47:17 |
| Status | A | ULS 4361573 | 2026-08-02 02:47:17 |
| Service | CF | ULS 4361573 | 2026-08-02 02:47:17 |
| Grant Date | 2020-12-08 | ULS 4361573 | 2026-08-02 02:47:17 |
| Expiration Date | 2030-12-08 | ULS 4361573 | 2026-08-02 02:47:17 |