Universal Licensing System
KOI533
Montana-Dakota Utilities Co.
License details
| ULS identifier | 1887223 |
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| Call sign | KOI533 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-08-05 |
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| Expiration | 2035-11-02 |
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| Frequency range | 451.575 - 456.575 MHz (2 frequencies) |
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| Locations | 4 |
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| Representative location | BILLINGS, YELLOWSTONE, MT |
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| Coordinates | 45.8047222, -108.5805556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:37 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2C | 451.57500000 | | | 100.000000 | 363.000000 | |
| 8 | 1 | MO | 451.57500000 | | | 40.000000 | 40.000000 | |
| 3 | 1 | FX1 | 456.57500000 | | | 40.000000 | 177.000000 | |
| 6 | 2 | FX1 | 456.57500000 | | | 25.000000 | 125.000000 | |
| 8 | 1 | MO | 456.57500000 | | | 40.000000 | 40.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.57500000 | | 11K0F3E |
| 8 | 1 | 451.57500000 | | 11K0F3E |
| 3 | 1 | 456.57500000 | | 11K0F3E |
| 6 | 2 | 456.57500000 | | 11K0F3E |
| 8 | 1 | 456.57500000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2615 HIGHWAY US 3, BILLINGS, YELLOWSTONE, MT | 45.80472222, -108.58055556 | 1124.700 m | TOWER | 16.800 m structure / 16.800 m overall | N |
| 3 | T | 417 1/2 Date, LAUREL, YELLOWSTONE, MT | 45.67277778, -108.75713889 | 1002.200 m | BPIPE | 10.000 m structure / 13.000 m overall | N |
| 6 | T | 5181 SOUTHGATE DRIVE, BILLINGS, YELLOWSTONE, MT | 45.75405556, -108.54438889 | 1010.400 m | BPIPE | 7.600 m structure / 10.700 m overall | N |
| 8 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 15.000 m | | | | 95.300 | |
| 1 | 3 | T | | 13.000 m | | | | -82.800 | |
| 1 | 8 | T | | | | | | | |
| 2 | 6 | T | | 10.600 m | V | 10.0000 | 335.0000 | -27.000 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 5181 SOUTHGATE DRIVE, BILLINGS, MT | YELLOWSTONE | 4068964205 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-05 | KOI533 | LIREN |
| 2019-04-09 | KOI533 | LIAUA |
| 2015-08-18 | KOI533 | LIREN |
| 2015-08-10 | KOI533 | LETRES |
| 2010-06-29 | KOI533 | LIMOD |
| 2008-03-31 | KOI533 | LIMOD |
| 2005-08-05 | KOI533 | LIREN |
| 2005-02-09 | KOI533 | LIMOD |
| 2004-12-08 | KOI533 | LIMOD |
| 2002-01-29 | KOI533 | AUDOPR |
| 2001-05-10 | KOI533 | LIAUA |
| 2000-11-24 | KOI533 | LICCNV |
| 2000-08-17 | KOI533 | LIREN |
| 2000-08-17 | KOI533 | AUTHPR |
| 2000-07-28 | KOI533 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1887223 | 2026-08-02 01:13:37 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KOI533 | ULS 1887223 | 2026-08-02 01:13:37 |
| Status | A | ULS 1887223 | 2026-08-02 01:13:37 |
| Service | IG | ULS 1887223 | 2026-08-02 01:13:37 |
| Grant Date | 2025-08-05 | ULS 1887223 | 2026-08-02 01:13:37 |
| Expiration Date | 2035-11-02 | ULS 1887223 | 2026-08-02 01:13:37 |