Universal Licensing System
WDD4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1974590 |
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| Call sign | WDD4 |
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| Radio service | AF |
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| Status | A |
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| Grant date | 2017-01-04 |
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| Expiration | 2027-01-27 |
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| Frequency range | 129.45 MHz |
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| Locations | 1 |
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| Representative location | Greensboro, GUILFORD, NC |
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| Coordinates | 36.0977500, -79.9373056 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:28 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 129.45000000 | | | 55.000000 | | HL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 129.45000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | Piedmont Triad International Airport, Greensboro, GUILFORD, NC | 36.09775000, -79.93730556 | 282.000 m | BANT | 20.000 m structure / 23.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 23.000 m | | | 360.0000 | | |
Control points
| Number | Address | County | Phone |
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| 2 | 6011 Industrial Way, Livermore, CA | ALAMEDA | 9252948400 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-25 | WDD4 | LIMOD |
| 2017-01-04 | WDD4 | LIREN |
| 2016-10-31 | WDD4 | LETRES |
| 2015-02-06 | WDD4 | LIAUA |
| 2015-02-05 | WDD4 | LIAUA |
| 2015-02-05 | WDD4 | ESUAPR |
| 2015-02-04 | WDD4 | ESUAPR |
| 2009-06-13 | WDD4 | LIAUA |
| 2009-06-12 | WDD4 | ESUAPR |
| 2009-06-02 | WDD4 | LIMOD |
| 2009-04-23 | WDD4 | ESUAPR |
| 2007-03-01 | WDD4 | AUTHPR |
| 2007-01-09 | WDD4 | LIREN |
| 2006-10-30 | WDD4 | LETRES |
| 2006-03-07 | WDD4 | AUTHPR |
| 2006-01-01 | WDD4 | LIASS |
| 2005-07-25 | WDD4 | ESCAPR |
| 2001-12-11 | WDD4 | LIREN |
| 2001-10-29 | WDD4 | LETRES |
| 2001-04-27 | WDD4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1974590 | 2026-08-02 02:08:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDD4 | ULS 1974590 | 2026-08-02 02:08:28 |
| Status | A | ULS 1974590 | 2026-08-02 02:08:28 |
| Service | AF | ULS 1974590 | 2026-08-02 02:08:28 |
| Grant Date | 2017-01-04 | ULS 1974590 | 2026-08-02 02:08:28 |
| Expiration Date | 2027-01-27 | ULS 1974590 | 2026-08-02 02:08:28 |