Universal Licensing System
KNHB587
NorthWestern Corporation
License details
| ULS identifier | 1886247 |
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| Call sign | KNHB587 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 2005-08-05 |
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| Expiration | 2015-10-24 |
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| Cancellation | 2015-09-25 |
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| Frequency range | 451.525 - 456.525 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | PLATTE, CHARLES MIX, SD |
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| Coordinates | 43.3341667, -98.7642500 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:53 |
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Licensee
| Name | NorthWestern Corporation |
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| Applicant type | C |
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| FRN | 0012478665 |
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| Location | Butte, MT |
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| Address | 40 East Broadway, Butte, MT, 59701 |
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| Phone | 4064971000 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB2 | 451.52500000 | | | 60.000000 | 236.000000 | |
| 1 | 1 | FX1 | 456.52500000 | | | 35.000000 | | |
| 3 | 1 | MO | 456.52500000 | | | 50.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.52500000 | | 20K0F3E |
| 1 | 1 | 456.52500000 | | 20K0F3E |
| 3 | 1 | 456.52500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SD | | | | | |
| 2 | T | 6 MI S 1 1/2 MI W, PLATTE, CHARLES MIX, SD | 43.33416667, -98.76425000 | 591.000 m | | | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 43.000 m | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 21ST ST & LINCOLN AVE SW, HURON, SD | | 6053528411 |
License history
| Date | File or call sign | Action |
|---|
| 2015-09-26 | KNHB587 | LICAN |
| 2015-08-03 | KNHB587 | LETRES |
| 2007-07-31 | KNHB587 | ESCAPR |
| 2006-05-08 | KNHB587 | LTSAPR |
| 2006-05-06 | KNHB587 | LIAUA |
| 2005-09-28 | KNHB587 | LTSAPR |
| 2005-09-28 | KNHB587 | LIAUA |
| 2005-08-05 | KNHB587 | LIREN |
| 2005-08-01 | KNHB587 | LETRES |
| 2005-04-07 | KNHB587 | LIASS |
| 2005-03-16 | KNHB587 | LTSAPR |
| 2003-11-08 | KNHB587 | LIAUA |
| 2003-10-04 | KNHB587 | LIAUA |
| 2003-09-14 | KNHB587 | LIASS |
| 2001-10-19 | KNHB587 | AUDOPR |
| 2000-11-24 | KNHB587 | LICCNV |
| 2000-10-17 | KNHB587 | AUTHPR |
| 2000-10-17 | KNHB587 | LIREN |
| 2000-07-24 | KNHB587 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1886247 | 2026-08-02 01:25:53 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNHB587 | ULS 1886247 | 2026-08-02 01:25:53 |
| Status | C | ULS 1886247 | 2026-08-02 01:25:53 |
| Service | IG | ULS 1886247 | 2026-08-02 01:25:53 |
| Grant Date | 2005-08-05 | ULS 1886247 | 2026-08-02 01:25:53 |
| Expiration Date | 2015-10-24 | ULS 1886247 | 2026-08-02 01:25:53 |
| Cancellation Date | 2015-09-25 | ULS 1886247 | 2026-08-02 01:25:53 |