Universal Licensing System
WRDU303
West Contra Costa Sanitary Landfill, Inc.
License details
| ULS identifier | 4181533 |
|---|
| Call sign | WRDU303 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-07-20 |
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| Expiration | 2029-07-20 |
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| Frequency range | 467.7625 - 467.925 MHz (6 frequencies) |
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| Locations | 2 |
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| Representative location | Richmond, CONTRA COSTA, CA |
|---|
| Coordinates | 37.9691667, -122.3800000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:21:41 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 467.76250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.76250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 467.81250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.81250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 467.85000000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.85000000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 467.87500000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.87500000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 467.90000000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.90000000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 467.92500000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 467.92500000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 467.76250000 | | 11K0F3E |
| 2 | 1 | 467.76250000 | | 11K0F3E |
| 1 | 1 | 467.81250000 | | 11K0F3E |
| 2 | 1 | 467.81250000 | | 11K0F3E |
| 1 | 1 | 467.85000000 | | 11K0F3E |
| 2 | 1 | 467.85000000 | | 11K0F3E |
| 1 | 1 | 467.87500000 | | 11K0F3E |
| 2 | 1 | 467.87500000 | | 11K0F3E |
| 1 | 1 | 467.90000000 | | 11K0F3E |
| 2 | 1 | 467.90000000 | | 11K0F3E |
| 1 | 1 | 467.92500000 | | 11K0F3E |
| 2 | 1 | 467.92500000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Richmond, CONTRA COSTA, CA | 37.96916667, -122.38000000 | | | | |
| 2 | T | Richmond, CONTRA COSTA, CA | 37.88186111, -122.03580556 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 3260 Blume Drive, Ste 200, Richmond, CA | CONTRA COSTA | 5102621666 |
License history
| Date | File or call sign | Action |
|---|
| 2026-05-22 | WRDU303 | LIAUA |
| 2020-04-21 | WRDU303 | LETCNS |
| 2019-07-20 | WRDU303 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4181533 | 2026-08-02 01:21:41 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU303 | ULS 4181533 | 2026-08-02 01:21:41 |
| Status | A | ULS 4181533 | 2026-08-02 01:21:41 |
| Service | IG | ULS 4181533 | 2026-08-02 01:21:41 |
| Grant Date | 2019-07-20 | ULS 4181533 | 2026-08-02 01:21:41 |
| Expiration Date | 2029-07-20 | ULS 4181533 | 2026-08-02 01:21:41 |