Universal Licensing System
WPON839
UNION PACIFIC RAILROAD COMPANY
License details
| ULS identifier | 1080817 |
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| Call sign | WPON839 |
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| Radio service | MG |
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| Status | A |
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| Grant date | 2020-03-17 |
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| Expiration | 2030-04-24 |
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| Frequency range | 941.5125 MHz |
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| Locations | 4 |
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| Representative location | THORN HOLLOW, UMATILLA, OR |
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| Coordinates | 45.6951389, -118.4074444 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 941.51250000 | | | | | |
| 1 | 2 | FXO | 941.51250000 | | | | | |
| 1 | 3 | FXO | 941.51250000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 941.51250000 | | 25K0F3D |
| 1 | 2 | 941.51250000 | | 25K0F3D |
| 1 | 3 | 941.51250000 | | 25K0F3D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1 MILE EAST OF THORN HOLLOW ALONG UP R/W, THORN HOLLOW, UMATILLA, OR | 45.69513889, -118.40744444 | 546.800 m | TOWER | 25.900 m structure / 25.900 m overall | |
| 2 | R | | 45.68430556, -118.44188889 | 486.700 m | | | |
| 3 | R | | 45.69986111, -118.38355556 | 547.700 m | | | |
| 4 | R | | 45.70069444, -118.36216667 | 564.200 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | SCALA ELECTRONIC PR-900 | | V | 20.1000 | 245.8000 | | |
| 1 | 2 | R | SCALA ELECTRONIC PR-900 | | | 20.1000 | | | |
| 1 | 3 | R | SCALA ELECTRONIC PR-900 | | | 20.1000 | | | |
| 1 | 4 | R | SCALA ELECTRONIC PR-900 | | | 20.1000 | | | |
| 2 | 1 | T | SCALA ELECTRONIC PR-900 | | V | 20.1000 | 74.2000 | | |
| 3 | 1 | T | SCALA ELECTRONIC PR-900 | | V | 20.1000 | 80.1000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2023-10-12 | WPON839 | LIAUA |
| 2020-03-17 | WPON839 | LIREN |
| 2020-01-27 | WPON839 | LETRES |
| 2010-01-28 | WPON839 | LIREN |
| 2004-12-18 | WPON839 | LIAUA |
| 2004-12-17 | WPON839 | ESUAPR |
| 2000-11-29 | WPON839 | LIAUA |
| 2000-11-22 | WPON839 | LIAUA |
| 2000-09-29 | WPON839 | LIAUA |
| 2000-06-20 | WPON839 | LIAUA |
| 2000-05-03 | WPON839 | LIAUA |
| 2000-04-24 | WPON839 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1080817 | 2026-08-02 02:45:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPON839 | ULS 1080817 | 2026-08-02 02:45:20 |
| Status | A | ULS 1080817 | 2026-08-02 02:45:20 |
| Service | MG | ULS 1080817 | 2026-08-02 02:45:20 |
| Grant Date | 2020-03-17 | ULS 1080817 | 2026-08-02 02:45:20 |
| Expiration Date | 2030-04-24 | ULS 1080817 | 2026-08-02 02:45:20 |