Universal Licensing System
WRDU380
Seafair, Inc.
License details
| ULS identifier | 4181618 |
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| Call sign | WRDU380 |
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| Radio service | AF |
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| Status | E |
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| Grant date | 2019-07-22 |
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| Expiration | 2019-08-05 |
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| Cancellation | 2019-10-05 |
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| Frequency range | 121.325 - 125.425 MHz (3 frequencies) |
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| Locations | 1 |
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| Representative location | Seattle, KING, WA |
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| Coordinates | 47.5763889, -122.2658333 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FAC | 121.32500000 | | | 10.000000 | | |
| 1 | 1 | FAC | 124.87500000 | | | 10.000000 | | |
| 1 | 1 | FAC | 125.42500000 | | | 10.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 121.32500000 | | 6K00A3E |
| 1 | 1 | 124.87500000 | | 6K00A3E |
| 1 | 1 | 125.42500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3800 Lake Washington Blvd (Park), Seattle, KING, WA | 47.57638889, -122.26583333 | 2.000 m | GTOWER | 9.000 m structure / 9.100 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 9.100 m | | 0.0000 | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3800 Lake Washington Blvd, Seattle, WA | KING | 2069341075 |
License history
| Date | File or call sign | Action |
|---|
| 2019-10-05 | WRDU380 | LIEXP |
| 2019-07-22 | WRDU380 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4181618 | 2026-08-02 02:08:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU380 | ULS 4181618 | 2026-08-02 02:08:20 |
| Status | E | ULS 4181618 | 2026-08-02 02:08:20 |
| Service | AF | ULS 4181618 | 2026-08-02 02:08:20 |
| Grant Date | 2019-07-22 | ULS 4181618 | 2026-08-02 02:08:20 |
| Expiration Date | 2019-08-05 | ULS 4181618 | 2026-08-02 02:08:20 |
| Cancellation Date | 2019-10-05 | ULS 4181618 | 2026-08-02 02:08:20 |