Universal Licensing System
WRBU543
POLAR SERVICE CENTERS
License details
| ULS identifier | 4059156 |
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| Call sign | WRBU543 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2018-06-22 |
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| Expiration | 2028-06-22 |
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| Frequency range | 451.2375 - 457.8375 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | BILLINGS, YELLOWSTONE, MT |
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| Coordinates | 45.8029167, -108.4428611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:21:24 |
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Licensee
| Name | POLAR SERVICE CENTERS |
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| Applicant type | E |
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| FRN | 0023318140 |
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| Location | BILLINGS, MT |
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| Address | 1635 NORTH FRONTAGE ROAD, BILLINGS, MT, 59101 |
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| Phone | 4062564933 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.23750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.63750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.83750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.83750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.23750000 | | 11K2F3E |
| 1 | 1 | 451.23750000 | | 7K60FXE |
| 1 | 1 | 451.23750000 | | 7K60FXD |
| 1 | 1 | 451.63750000 | | 11K2F3E |
| 1 | 1 | 451.63750000 | | 7K60FXE |
| 1 | 1 | 451.63750000 | | 7K60FXD |
| 1 | 1 | 452.83750000 | | 7K60FXD |
| 1 | 1 | 452.83750000 | | 11K2F3E |
| 1 | 1 | 452.83750000 | | 7K60FXE |
| 1 | 1 | 457.83750000 | | 7K60FXD |
| 1 | 1 | 457.83750000 | | 11K2F3E |
| 1 | 1 | 457.83750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | BILLINGS, YELLOWSTONE, MT | 45.80291667, -108.44286111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1635 NORTH FRONTAGE ROAD, BILLINGS, MT | YELLOWSTONE | 4062564933 |
License history
| Date | File or call sign | Action |
|---|
| 2019-04-09 | WRBU543 | LETCNS |
| 2018-06-22 | WRBU543 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4059156 | 2026-08-02 01:21:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRBU543 | ULS 4059156 | 2026-08-02 01:21:24 |
| Status | A | ULS 4059156 | 2026-08-02 01:21:24 |
| Service | IG | ULS 4059156 | 2026-08-02 01:21:24 |
| Grant Date | 2018-06-22 | ULS 4059156 | 2026-08-02 01:21:24 |
| Expiration Date | 2028-06-22 | ULS 4059156 | 2026-08-02 01:21:24 |