Universal Licensing System
WDT4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1974765 |
|---|
| Call sign | WDT4 |
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| Radio service | AF |
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| Status | A |
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| Grant date | 2025-08-05 |
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| Expiration | 2035-07-11 |
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| Frequency range | 129.125 - 136.975 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | DETROIT, WAYNE, MI |
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| Coordinates | 42.2336111, -83.3436111 |
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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 | 129.12500000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 130.45000000 | | | 25.000000 | | LL |
| 1 | 1 | FA | 131.12500000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 131.55000000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 136.97500000 | | | 25.000000 | | HL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 129.12500000 | | 13K0A2D |
| 1 | 1 | 130.45000000 | | 13K0A2D |
| 1 | 1 | 131.12500000 | | 13K0A2D |
| 1 | 1 | 131.55000000 | | 13K0A2D |
| 1 | 1 | 136.97500000 | | 14K0G1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SITE A- NWA BLDG 516 Detroit Metropolitan Wayne County Airport, DETROIT, WAYNE, MI | 42.23361111, -83.34361111 | 196.700 m | BANT | 10.000 m structure / 11.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | 360.0000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2551 Riva Rd, ANNAPOLIS, MD | ANNE ARUNDEL | 4102664034 |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-08 | WDT4 | LIMOD |
| 2025-08-05 | WDT4 | LIREN |
| 2025-04-14 | WDT4 | LETRES |
| 2021-07-28 | WDT4 | LIAUA |
| 2015-09-16 | WDT4 | LIMOD |
| 2015-07-13 | WDT4 | ESUAPR |
| 2015-07-11 | WDT4 | LIREN |
| 2015-04-20 | WDT4 | LETRES |
| 2015-02-06 | WDT4 | LIAUA |
| 2015-02-05 | WDT4 | ESUAPR |
| 2015-02-05 | WDT4 | LIAUA |
| 2015-02-04 | WDT4 | ESUAPR |
| 2014-09-17 | WDT4 | LIMOD |
| 2014-07-22 | WDT4 | ESUAPR |
| 2013-05-09 | WDT4 | LIMOD |
| 2013-05-03 | WDT4 | ESUAPR |
| 2010-09-21 | WDT4 | LIMOD |
| 2010-07-27 | WDT4 | ESUAPR |
| 2007-03-01 | WDT4 | AUTHPR |
| 2006-03-13 | WDT4 | LIMOD |
| 2006-03-07 | WDT4 | AUTHPR |
| 2006-03-06 | WDT4 | ESUAPR |
| 2006-01-01 | WDT4 | LIASS |
| 2005-07-25 | WDT4 | ESCAPR |
| 2005-06-07 | WDT4 | LIREN |
| 2005-04-18 | WDT4 | LETRES |
| 2003-11-04 | WDT4 | LIMOD |
| 2001-04-27 | WDT4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1974765 | 2026-08-02 02:08:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDT4 | ULS 1974765 | 2026-08-02 02:08:28 |
| Status | A | ULS 1974765 | 2026-08-02 02:08:28 |
| Service | AF | ULS 1974765 | 2026-08-02 02:08:28 |
| Grant Date | 2025-08-05 | ULS 1974765 | 2026-08-02 02:08:28 |
| Expiration Date | 2035-07-11 | ULS 1974765 | 2026-08-02 02:08:28 |