Universal Licensing System
WRDU912
City of Napa
License details
| ULS identifier | 4183196 |
|---|
| Call sign | WRDU912 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-07-25 |
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| Expiration | 2029-07-25 |
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| Frequency range | 153.1475 - 158.3625 MHz (2 frequencies) |
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| Locations | 5 |
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| Representative location | RUTHERFORD, NAPA, CA |
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| Coordinates | 38.4819444, -122.3727778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:03 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 153.14750000 | | | 40.000000 | 50.000000 | |
| 2 | 1 | FB2 | 153.14750000 | | | 40.000000 | 50.000000 | |
| 3 | 1 | FB2 | 153.14750000 | | | 40.000000 | 50.000000 | |
| 4 | 1 | MO | 153.14750000 | | | 25.000000 | 25.000000 | |
| 4 | 1 | MO | 158.36250000 | | | 25.000000 | 25.000000 | |
| 5 | 1 | FX1 | 158.36250000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 153.14750000 | | 7K60FXE |
| 1 | 1 | 153.14750000 | | 11K2F3E |
| 2 | 1 | 153.14750000 | | 7K60FXE |
| 2 | 1 | 153.14750000 | | 11K2F3E |
| 3 | 1 | 153.14750000 | | 7K60FXE |
| 3 | 1 | 153.14750000 | | 11K2F3E |
| 4 | 1 | 153.14750000 | | 7K60FXE |
| 4 | 1 | 153.14750000 | | 11K2F3E |
| 4 | 1 | 158.36250000 | | 7K60FXE |
| 4 | 1 | 158.36250000 | | 11K2F3E |
| 5 | 1 | 158.36250000 | | 7K60FXE |
| 5 | 1 | 158.36250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CONN DAM LAKE HENNESSY, RUTHERFORD, NAPA, CA | 38.48194444, -122.37277778 | 97.000 m | B | 6.000 m structure / 6.000 m overall | |
| 2 | T | MILLIKEN RESERVOIR, NAPA, NAPA, CA | 38.37805556, -122.22833333 | 280.000 m | B | 6.000 m structure / 6.000 m overall | |
| 3 | T | NAPA RADIO SITE 6.4 KM E, NAPA, NAPA, CA | 38.22375000, -122.22408333 | 94.500 m | LTOWER | 18.300 m structure / 18.300 m overall | |
| 4 | T | | | | | | |
| 5 | T | NAPA, CA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | -199.000 | |
| 1 | 2 | T | | 6.000 m | | | | 26.000 | |
| 1 | 3 | T | | 10.000 m | | | | 21.400 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 770 JACKSON ST, NAPA, CA | NAPA | 7072579270 |
License history
| Date | File or call sign | Action |
|---|
| 2021-05-12 | WRDU912 | LIAUA |
| 2021-04-30 | WRDU912 | LIAUA |
| 2019-07-25 | WRDU912 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4183196 | 2026-08-02 01:11:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU912 | ULS 4183196 | 2026-08-02 01:11:03 |
| Status | A | ULS 4183196 | 2026-08-02 01:11:03 |
| Service | IG | ULS 4183196 | 2026-08-02 01:11:03 |
| Grant Date | 2019-07-25 | ULS 4183196 | 2026-08-02 01:11:03 |
| Expiration Date | 2029-07-25 | ULS 4183196 | 2026-08-02 01:11:03 |