Universal Licensing System
WRWI831
Semco Energy Gas Company
License details
| ULS identifier | 4729885 |
|---|
| Call sign | WRWI831 |
|---|
| Radio service | YJ |
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| Status | A |
|---|
| Grant date | 2023-02-27 |
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| Expiration | 2033-02-27 |
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| Frequency range | 810.7625 - 860.8875 MHz (4 frequencies) |
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| Locations | 4 |
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| Representative location | CASSOPOLIS, CASS, MI |
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| Coordinates | 41.9202778, -86.0186111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:09 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | MO | 810.76250000 | | | 100.000000 | 100.000000 | |
| 4 | 1 | MO | 815.88750000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 855.76250000 | | | 100.000000 | 365.000000 | |
| 2 | 1 | FB2 | 860.88750000 | | | 100.000000 | 118.900000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 810.76250000 | | 8K70D1W |
| 3 | 1 | 810.76250000 | | 8K10F1E |
| 4 | 1 | 815.88750000 | | 8K70D1W |
| 4 | 1 | 815.88750000 | | 8K10F1E |
| 1 | 1 | 855.76250000 | | 8K10F1E |
| 1 | 1 | 855.76250000 | | 8K70D1W |
| 2 | 1 | 860.88750000 | | 8K10F1E |
| 2 | 1 | 860.88750000 | | 8K70D1W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 321 M-62 NORTH, CASSOPOLIS, CASS, MI | 41.92027778, -86.01861111 | 271.000 m | GTOWER | 79.000 m structure / 79.000 m overall | |
| 2 | T | Fair Road, Sturgis, ST. JOSEPH, MI | 41.85616667, -85.48802778 | 292.600 m | LTOWER | 57.900 m structure / 57.900 m overall | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 76.200 m | | | | 87.500 | |
| 1 | 2 | T | | 53.300 m | | | | 86.400 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1411 Third Street, Michigan, MI | ST. CLAIR | 6163928589 |
License history
| Date | File or call sign | Action |
|---|
| 2024-08-10 | WRWI831 | LIAUA |
| 2024-08-06 | WRWI831 | LETCNS |
| 2023-02-27 | WRWI831 | COR |
| 2023-02-27 | WRWI831 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4729885 | 2026-08-02 01:11:09 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRWI831 | ULS 4729885 | 2026-08-02 01:11:09 |
| Status | A | ULS 4729885 | 2026-08-02 01:11:09 |
| Service | YJ | ULS 4729885 | 2026-08-02 01:11:09 |
| Grant Date | 2023-02-27 | ULS 4729885 | 2026-08-02 01:11:09 |
| Expiration Date | 2033-02-27 | ULS 4729885 | 2026-08-02 01:11:09 |