Universal Licensing System
WPJK531
ENVIRONMENTAL CONTRACTORS LLC
License details
| ULS identifier | 1737490 |
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| Call sign | WPJK531 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-07-17 |
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| Expiration | 2011-07-08 |
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| Cancellation | 2011-09-10 |
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| Frequency range | 461.55 MHz |
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| Locations | 2 |
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| Representative location | MISSOULA, MISSOULA, MT |
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| Coordinates | 46.9640833, -114.2006667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:01 |
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Licensee
| Name | ENVIRONMENTAL CONTRACTORS LLC |
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| Applicant type | L |
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| FRN | 0005771563 |
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| Location | BILLINGS, MT |
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| Address | BILLINGS, MT, 59108 |
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| Phone | 4063270271 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 461.55000000 | | | 25.000000 | 50.000000 | |
| 2 | 1 | MO | 461.55000000 | | | 25.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.55000000 | | 20K0F3E |
| 2 | 1 | 461.55000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | HWY 10 10 MI W, MISSOULA, MISSOULA, MT | 46.96408333, -114.20066667 | 934.000 m | B | 3.000 m structure / 4.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 4.000 m | | | | -264.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 3 | 6390 HWY 10 West, Missoula, MT | MISSOULA | 4063270271 |
License history
| Date | File or call sign | Action |
|---|
| 2011-09-10 | WPJK531 | LIEXP |
| 2011-04-11 | WPJK531 | LETRES |
| 2004-09-24 | WPJK531 | LIAUA |
| 2004-09-24 | WPJK531 | LTSAPR |
| 2004-09-17 | WPJK531 | LIAUA |
| 2004-09-17 | WPJK531 | LTSAPR |
| 2004-03-05 | WPJK531 | AUDOPR |
| 2001-07-17 | WPJK531 | LIREN |
| 2001-04-16 | WPJK531 | LETRES |
| 2000-11-23 | WPJK531 | LICCNV |
| 1996-07-08 | WPJK531 | LIISS |
| 1996-07-08 | WPJK531 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1737490 | 2026-08-02 01:14:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPJK531 | ULS 1737490 | 2026-08-02 01:14:01 |
| Status | E | ULS 1737490 | 2026-08-02 01:14:01 |
| Service | IG | ULS 1737490 | 2026-08-02 01:14:01 |
| Grant Date | 2001-07-17 | ULS 1737490 | 2026-08-02 01:14:01 |
| Expiration Date | 2011-07-08 | ULS 1737490 | 2026-08-02 01:14:01 |
| Cancellation Date | 2011-09-10 | ULS 1737490 | 2026-08-02 01:14:01 |