Universal Licensing System
WRT4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1984301 |
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| Call sign | WRT4 |
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| Radio service | AF |
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| Status | C |
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| Grant date | 2016-01-20 |
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| Expiration | 2026-01-31 |
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| Cancellation | 2020-06-01 |
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| Frequency range | 129.8 MHz |
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| Locations | 1 |
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| Representative location | PHILADELPHIA, PHILADELPHIA, PA |
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| Coordinates | 39.8667778, -75.2496389 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:32 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 129.80000000 | | | 55.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 129.80000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | PHILADELPHIA INTERNATIONAL AIRPORT, PHILADELPHIA, PHILADELPHIA, PA | 39.86677778, -75.24963889 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2020-06-02 | WRT4 | LICAN |
| 2016-01-20 | WRT4 | LIREN |
| 2015-11-09 | WRT4 | LETRES |
| 2015-02-06 | WRT4 | LIAUA |
| 2015-02-05 | WRT4 | LIAUA |
| 2015-02-05 | WRT4 | ESUAPR |
| 2015-02-04 | WRT4 | ESUAPR |
| 2007-03-01 | WRT4 | AUTHPR |
| 2006-03-07 | WRT4 | AUTHPR |
| 2006-01-10 | WRT4 | LIREN |
| 2006-01-01 | WRT4 | LIASS |
| 2005-11-07 | WRT4 | LETRES |
| 2005-07-25 | WRT4 | ESCAPR |
| 2001-04-27 | WRT4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1984301 | 2026-08-02 02:08:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRT4 | ULS 1984301 | 2026-08-02 02:08:32 |
| Status | C | ULS 1984301 | 2026-08-02 02:08:32 |
| Service | AF | ULS 1984301 | 2026-08-02 02:08:32 |
| Grant Date | 2016-01-20 | ULS 1984301 | 2026-08-02 02:08:32 |
| Expiration Date | 2026-01-31 | ULS 1984301 | 2026-08-02 02:08:32 |
| Cancellation Date | 2020-06-01 | ULS 1984301 | 2026-08-02 02:08:32 |