Universal Licensing System
WRDU638
UNION PACIFIC RAILROAD COMPANY
License details
| ULS identifier | 4182421 |
|---|
| Call sign | WRDU638 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2019-07-23 |
|---|
| Expiration | 2029-07-23 |
|---|
| Frequency range | 452.9375 - 457.9375 MHz (2 frequencies) |
|---|
| Locations | 6 |
|---|
| Representative location | EMIGRANT GAP, PLACER, CA |
|---|
| Coordinates | 39.2998333, -120.6703611 |
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| Source archive | l_LMpriv.zip |
|---|
| 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 | EMIGRANT GAP, PLACER, CA | 39.29983333, -120.67036111 | | | | |
| 2 | T | EMIGRANT GAP, PLACER, CA | 39.31388889, -120.63533333 | | | | |
| 3 | T | EMIGRANT GAP, NEVADA, CA | 39.32502778, -120.59777778 | | | | |
| 4 | T | CEDAR RIDGE, PLACER, CA | 39.31333333, -120.56138889 | | | | |
| 5 | T | EMIGRANT GAP, PLACER, CA | 39.30183333, -120.54475000 | | | | |
| 6 | T | SODA SPRINGS, PLACER, CA | 39.29869444, -120.51241667 | | | | |
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 | WRDU638 | LIAUA |
| 2020-04-21 | WRDU638 | LETCNS |
| 2019-07-23 | WRDU638 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182421 | 2026-08-02 01:12:35 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU638 | ULS 4182421 | 2026-08-02 01:12:35 |
| Status | A | ULS 4182421 | 2026-08-02 01:12:35 |
| Service | IG | ULS 4182421 | 2026-08-02 01:12:35 |
| Grant Date | 2019-07-23 | ULS 4182421 | 2026-08-02 01:12:35 |
| Expiration Date | 2029-07-23 | ULS 4182421 | 2026-08-02 01:12:35 |