Universal Licensing System
WRDU639
UNION PACIFIC RAILROAD COMPANY
License details
| ULS identifier | 4182422 |
|---|
| Call sign | WRDU639 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2019-07-23 |
|---|
| Expiration | 2029-07-23 |
|---|
| Frequency range | 452.9375 - 457.9375 MHz (2 frequencies) |
|---|
| Locations | 5 |
|---|
| Representative location | BAXTER, PLACER, CA |
|---|
| Coordinates | 39.2131944, -120.7610833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:36 |
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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 | ALTA, PLACER, CA | 39.19500000, -120.78450000 | | | | |
| 2 | T | BAXTER, PLACER, CA | 39.21319444, -120.76108333 | | | | |
| 3 | T | ALTA, PLACER, CA | 39.23708333, -120.73883333 | | | | |
| 4 | T | EMIGRANT GAP, PLACER, CA | 39.25238889, -120.71838889 | | | | |
| 5 | T | EMIGRANT GAP, PLACER, CA | 39.25202778, -120.70388889 | | | | |
| 6 | T | EMIGRANT GAP, PLACER, CA | 39.27122222, -120.69186111 | | | | |
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 | WRDU639 | LIAUA |
| 2020-04-21 | WRDU639 | LETCNS |
| 2019-07-23 | WRDU639 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182422 | 2026-08-02 01:12:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU639 | ULS 4182422 | 2026-08-02 01:12:36 |
| Status | A | ULS 4182422 | 2026-08-02 01:12:36 |
| Service | IG | ULS 4182422 | 2026-08-02 01:12:36 |
| Grant Date | 2019-07-23 | ULS 4182422 | 2026-08-02 01:12:36 |
| Expiration Date | 2029-07-23 | ULS 4182422 | 2026-08-02 01:12:36 |