Universal Licensing System
WDU9
AERONAUTICAL RADIO INC
License details
| ULS identifier | 1974864 |
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| Call sign | WDU9 |
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| Radio service | AF |
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| Status | E |
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| Grant date | 1997-04-17 |
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| Expiration | 2002-04-17 |
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| Cancellation | 2002-07-21 |
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| Frequency range | 130.525 MHz |
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| Locations | 1 |
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| Representative location | WALLA WALLA, WALLA WALLA, WA |
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| Coordinates | 46.0945833, -118.2880278 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:47 |
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Licensee
| Name | AERONAUTICAL RADIO INC |
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| Applicant type | C |
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| Location | ANNAPOLIS, MD |
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| Address | 2551 RIVA RD, ANNAPOLIS, MD, 21401 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FA | 130.52500000 | | | 55.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 130.52500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | WALLA WALLA REGIONAL AIRPORT, WALLA WALLA, WALLA WALLA, WA | 46.09458333, -118.28802778 | 367.000 m | B | 5.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 7.000 m | | | | | |
License history
| Date | File or call sign | Action |
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| 2002-07-21 | WDU9 | LIEXP |
| 2002-01-22 | WDU9 | LETRES |
| 2001-04-27 | WDU9 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1974864 | 2026-08-02 02:08:47 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WDU9 | ULS 1974864 | 2026-08-02 02:08:47 |
| Status | E | ULS 1974864 | 2026-08-02 02:08:47 |
| Service | AF | ULS 1974864 | 2026-08-02 02:08:47 |
| Grant Date | 1997-04-17 | ULS 1974864 | 2026-08-02 02:08:47 |
| Expiration Date | 2002-04-17 | ULS 1974864 | 2026-08-02 02:08:47 |
| Cancellation Date | 2002-07-21 | ULS 1974864 | 2026-08-02 02:08:47 |