Universal Licensing System
WRDU747
UNION PACIFIC RAILROAD COMPANY
License details
| ULS identifier | 4182828 |
|---|
| Call sign | WRDU747 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2019-07-24 |
|---|
| Expiration | 2029-07-24 |
|---|
| Frequency range | 452.9375 - 457.9375 MHz (2 frequencies) |
|---|
| Locations | 6 |
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| Representative location | HESPERIA, SAN BERNARDINO, CA |
|---|
| Coordinates | 34.3967500, -117.4141389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:35 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 2 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 3 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 4 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 5 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 6 | 1 | MO | 452.93750000 | | | 8.000000 | 8.000000 | |
| 1 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
| 2 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
| 3 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
| 4 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
| 5 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
| 6 | 1 | MO | 457.93750000 | | | 8.000000 | 8.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.93750000 | | 11K2F2D |
| 2 | 1 | 452.93750000 | | 11K2F2D |
| 3 | 1 | 452.93750000 | | 11K2F2D |
| 4 | 1 | 452.93750000 | | 11K2F2D |
| 5 | 1 | 452.93750000 | | 11K2F2D |
| 6 | 1 | 452.93750000 | | 11K2F2D |
| 1 | 1 | 457.93750000 | | 11K2F2D |
| 2 | 1 | 457.93750000 | | 11K2F2D |
| 3 | 1 | 457.93750000 | | 11K2F2D |
| 4 | 1 | 457.93750000 | | 11K2F2D |
| 5 | 1 | 457.93750000 | | 11K2F2D |
| 6 | 1 | 457.93750000 | | 11K2F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | HESPERIA, SAN BERNARDINO, CA | 34.39675000, -117.41413889 | | | | |
| 2 | T | SAN BERNARDINO, SAN BERNARDINO, CA | 34.39675000, -117.43747222 | | | | |
| 3 | T | LYTLE CREEK, SAN BERNARDINO, CA | 34.33347222, -117.47113889 | | | | |
| 4 | T | SAN BERNARDINO, SAN BERNARDINO, CA | 34.14675000, -117.35477778 | | | | |
| 5 | T | SAN BERNARDINO, SAN BERNARDINO, CA | 34.09713889, -117.34308333 | | | | |
| 6 | T | COLTON, SAN BERNARDINO, CA | 34.07002778, -117.34452778 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1400 DOUGLAS ST. STOP 0540, OMAHA, NE | DOUGLAS | 4025446090 |
License history
| Date | File or call sign | Action |
|---|
| 2023-10-12 | WRDU747 | LIAUA |
| 2020-04-28 | WRDU747 | LETCNS |
| 2019-07-24 | WRDU747 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182828 | 2026-08-02 01:12:35 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU747 | ULS 4182828 | 2026-08-02 01:12:35 |
| Status | A | ULS 4182828 | 2026-08-02 01:12:35 |
| Service | IG | ULS 4182828 | 2026-08-02 01:12:35 |
| Grant Date | 2019-07-24 | ULS 4182828 | 2026-08-02 01:12:35 |
| Expiration Date | 2029-07-24 | ULS 4182828 | 2026-08-02 01:12:35 |