Universal Licensing System
WRKR413
BOB, LLC
License details
| ULS identifier | 4383703 |
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| Call sign | WRKR413 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2021-02-02 |
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| Expiration | 2031-02-02 |
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| Cancellation | 2025-08-08 |
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| Frequency range | 18015 MHz |
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| Locations | 2 |
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| Representative location | Romeoville, WILL, IL |
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| Coordinates | 41.6594444, -88.1102500 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:00 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 18015.00000000 | | | | | |
| 1 | 1 | FXO | 18015.00000000 | | | | | |
| 1 | 1 | FXO | 18015.00000000 | | | | | |
| 1 | 1 | FXO | 18015.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 18015.00000000 | | 47M3D7W |
| 1 | 1 | 18015.00000000 | | 47M3D7W |
| 1 | 1 | 18015.00000000 | | 47M3D7W |
| 1 | 1 | 18015.00000000 | | 47M3D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1001 Crossroads Pkwy, Romeoville, WILL, IL | 41.65944444, -88.11025000 | 200.000 m | BMAST | 12.000 m structure / 15.000 m overall | |
| 2 | R | | 41.65777778, -88.02097222 | 228.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RF Engineering & Energy R RFMA-1839UH06S | | H | 38.9000 | 91.4000 | | |
| 1 | 2 | R | RF Engineering & Energy R RFMA-1839UH06S | | | 38.9000 | 0.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-12 | WRKR413 | LICAN |
| 2025-04-23 | WRKR413 | LITRAN |
| 2024-05-11 | WRKR413 | LIAUA |
| 2021-02-02 | WRKR413 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4383703 | 2026-08-02 02:47:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKR413 | ULS 4383703 | 2026-08-02 02:47:00 |
| Status | C | ULS 4383703 | 2026-08-02 02:47:00 |
| Service | CF | ULS 4383703 | 2026-08-02 02:47:00 |
| Grant Date | 2021-02-02 | ULS 4383703 | 2026-08-02 02:47:00 |
| Expiration Date | 2031-02-02 | ULS 4383703 | 2026-08-02 02:47:00 |
| Cancellation Date | 2025-08-08 | ULS 4383703 | 2026-08-02 02:47:00 |