Universal Licensing System
KOI594
License details
| ULS identifier | 1887226 |
|---|---|
| Call sign | KOI594 |
| Radio service | IG |
| Status | A |
| Grant date | 2023-06-06 |
| Expiration | 2032-06-23 |
| Frequency range | 153.425 - 159.81 MHz (6 frequencies) |
| Locations | 7 |
| Representative location | GREAT FALLS, CASCADE, MT |
| Coordinates | 47.4857778, -111.3508056 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:25:53 |
Licensee
| Name | NorthWestern Corporation |
|---|---|
| Applicant type | C |
| FRN | 0012478665 |
| Location | Butte, MT |
| Address | 11 East Park Street, Butte, MT, 59701 |
| Phone | 4064971000 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 3 | 1 | FB2 | 153.42500000 | 110.000000 | 390.000000 | |||
| 5 | 1 | FB | 153.42500000 | 45.000000 | 90.000000 | |||
| 6 | 1 | MO | 153.42500000 | 45.000000 | ||||
| 2 | 1 | FB2 | 153.47000000 | 45.000000 | 90.000000 | |||
| 6 | 1 | MO | 153.47000000 | 45.000000 | ||||
| 1 | 1 | FB2 | 153.71000000 | 110.000000 | 390.000000 | |||
| 4 | 1 | FB | 153.71000000 | 45.000000 | 180.000000 | |||
| 6 | 1 | MO | 153.71000000 | 45.000000 | ||||
| 4 | 1 | FX1 | 158.20500000 | 45.000000 | 180.000000 | |||
| 6 | 1 | MO | 158.20500000 | 45.000000 | ||||
| 7 | 1 | FX1 | 158.20500000 | 45.000000 | ||||
| 5 | 1 | FX1 | 158.23500000 | 45.000000 | 90.000000 | |||
| 6 | 1 | MO | 158.23500000 | 45.000000 | ||||
| 7 | 1 | FX1 | 158.23500000 | 45.000000 | ||||
| 6 | 1 | MO | 159.81000000 | 45.000000 | ||||
| 7 | 1 | FX1 | 159.81000000 | 45.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 3 | 1 | 153.42500000 | 11K0F3E | |
| 5 | 1 | 153.42500000 | 11K0F3E | |
| 6 | 1 | 153.42500000 | 11K0F3E | |
| 2 | 1 | 153.47000000 | 11K0F3E | |
| 6 | 1 | 153.47000000 | 11K0F3E | |
| 1 | 1 | 153.71000000 | 11K0F3E | |
| 4 | 1 | 153.71000000 | 11K0F3E | |
| 6 | 1 | 153.71000000 | 11K0F3E | |
| 4 | 1 | 158.20500000 | 11K0F3E | |
| 6 | 1 | 158.20500000 | 11K0F3E | |
| 7 | 1 | 158.20500000 | 11K0F3E | |
| 5 | 1 | 158.23500000 | 11K0F3E | |
| 6 | 1 | 158.23500000 | 11K0F3E | |
| 7 | 1 | 158.23500000 | 11K0F3E | |
| 6 | 1 | 159.81000000 | 11K0F3E | |
| 7 | 1 | 159.81000000 | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | FT FALLS INTL ARPRT, GREAT FALLS, CASCADE, MT | 47.48577778, -111.35080556 | 1116.000 m | BTWR | 12.000 m structure / 19.000 m overall | N |
| 2 | T | 1 EAGLE HEIGHTS, GREAT FALLS, CASCADE, MT | 47.52605556, -111.32913889 | 1082.000 m | PIPE | 6.000 m structure / 12.000 m overall | N |
| 3 | T | 20 MIKES W, CASCADE, CASCADE, MT | 47.30688889, -111.96000000 | 1600.000 m | TOWER | 21.000 m structure / 27.000 m overall | N |
| 4 | T | 904 9TH ST N, GREAT FALLS, CASCADE, MT | 47.51525000, -111.19386111 | 1018.000 m | TOWER | 30.000 m structure / 36.000 m overall | N |
| 5 | T | 207 2ND AVE S, GREAT FALLS, CASCADE, MT | 47.50327778, -111.30358333 | 1015.000 m | B | 8.000 m structure / 14.000 m overall | N |
| 6 | T | CASCADE, MT | 47.27216667, -111.27302778 | ||||
| 7 | T | MT |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 19.000 m | 69.000 | |||||
| 1 | 2 | T | 12.000 m | 30.000 | |||||
| 1 | 3 | T | 27.000 m | 339.000 | |||||
| 1 | 4 | T | 36.000 m | -7.000 | |||||
| 1 | 5 | T | 14.000 m | -34.000 | |||||
| 1 | 6 | T | |||||||
| 1 | 7 | T |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 1 1ST AVE S, GREAT FALLS, MT | CASCADE | 4067917500 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2025-07-02 | KOI594 | LIASS |
| 2023-06-06 | KOI594 | LIREN |
| 2023-03-13 | KOI594 | LETRES |
| 2013-05-22 | KOI594 | LIREN |
| 2013-03-18 | KOI594 | LETRES |
| 2012-12-27 | KOI594 | LTSAPR |
| 2012-12-27 | KOI594 | LIMOD |
| 2010-08-19 | KOI594 | LTSAPR |
| 2010-08-19 | KOI594 | LIAUA |
| 2007-09-19 | KOI594 | LIAUA |
| 2007-09-19 | KOI594 | LTSAPR |
| 2003-08-07 | KOI594 | LIAUA |
| 2003-07-10 | KOI594 | LIREN |
| 2003-07-09 | KOI594 | LITIN |
| 2003-03-17 | KOI594 | LETRES |
| 2001-09-21 | KOI594 | AUDOPR |
| 2000-11-24 | KOI594 | LICCNV |
| 1998-03-23 | KOI594 | AUTHPR |
| 1998-03-23 | KOI594 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 1887226 | 2026-08-02 01:25:53 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | KOI594 | ULS 1887226 | 2026-08-02 01:25:53 |
| Status | A | ULS 1887226 | 2026-08-02 01:25:53 |
| Service | IG | ULS 1887226 | 2026-08-02 01:25:53 |
| Grant Date | 2023-06-06 | ULS 1887226 | 2026-08-02 01:25:53 |
| Expiration Date | 2032-06-23 | ULS 1887226 | 2026-08-02 01:25:53 |