Universal Licensing System
WPDP988
NorthWestern Corporation
License details
| ULS identifier | 1782618 |
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| Call sign | WPDP988 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2003-08-16 |
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| Expiration | 2013-10-28 |
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| Cancellation | 2013-12-28 |
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| Frequency range | 451.125 - 456.475 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | LAUREL, YELLOWSTONE, MT |
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| Coordinates | 45.5368889, -108.6406944 |
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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 |
|---|
| 1 | 1 | FX2 | 451.12500000 | | | 40.000000 | 159.000000 | |
| 1 | 1 | FXO | 451.47500000 | | | 40.000000 | 159.000000 | |
| 2 | 1 | FX1 | 456.12500000 | | | 40.000000 | 159.000000 | |
| 2 | 1 | FXO | 456.47500000 | | | 40.000000 | 159.000000 | |
| 3 | 1 | FXOT | 456.47500000 | | | 40.000000 | 159.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.12500000 | | 20K0F3E |
| 1 | 1 | 451.47500000 | | 20K0F3D |
| 2 | 1 | 456.12500000 | | 20K0F3E |
| 2 | 1 | 456.47500000 | | 20K0F3D |
| 3 | 1 | 456.47500000 | | 20K0F3D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | GREENO M W STA 18.5 KM SSE, LAUREL, YELLOWSTONE, MT | 45.53688889, -108.64069444 | 1470.000 m | TOWER | 18.000 m structure / 24.000 m overall | N |
| 2 | T | COLUMBUS AUTO 1.8 KM WNW, COLUMBUS, STILLWATER, MT | 45.64938889, -109.28572222 | 1116.000 m | TOWER | 8.000 m structure / 8.000 m overall | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 9.000 m | | | | 171.000 | |
| 1 | 2 | T | | 6.000 m | | | | -84.000 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 40 E BROADWAY, BUTTE, MT | | 4064973000 |
License history
| Date | File or call sign | Action |
|---|
| 2013-12-28 | WPDP988 | LIEXP |
| 2013-08-05 | WPDP988 | LETRES |
| 2007-07-31 | WPDP988 | ESCAPR |
| 2006-05-08 | WPDP988 | LTSAPR |
| 2006-05-06 | WPDP988 | LIAUA |
| 2005-09-28 | WPDP988 | LTSAPR |
| 2005-09-28 | WPDP988 | LIAUA |
| 2005-04-07 | WPDP988 | LIASS |
| 2005-03-16 | WPDP988 | LTSAPR |
| 2003-09-14 | WPDP988 | LIASS |
| 2003-08-16 | WPDP988 | LIREN |
| 2003-08-04 | WPDP988 | LETRES |
| 2002-11-15 | WPDP988 | LIASS |
| 2002-03-14 | WPDP988 | LIAUA |
| 2002-03-04 | WPDP988 | AUDOPR |
| 2002-02-15 | WPDP988 | LITRAN |
| 2000-11-23 | WPDP988 | LICCNV |
| 1998-08-19 | WPDP988 | AUTHPR |
| 1998-08-18 | WPDP988 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1782618 | 2026-08-02 01:25:53 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPDP988 | ULS 1782618 | 2026-08-02 01:25:53 |
| Status | E | ULS 1782618 | 2026-08-02 01:25:53 |
| Service | IG | ULS 1782618 | 2026-08-02 01:25:53 |
| Grant Date | 2003-08-16 | ULS 1782618 | 2026-08-02 01:25:53 |
| Expiration Date | 2013-10-28 | ULS 1782618 | 2026-08-02 01:25:53 |
| Cancellation Date | 2013-12-28 | ULS 1782618 | 2026-08-02 01:25:53 |