Universal Licensing System
WRLT4939
United Air Lines, Inc., Debtor-in-possession
License details
| ULS identifier | 1983954 |
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| Call sign | WRLT4939 |
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| Radio service | AR |
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| Status | C |
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| Grant date | 2002-11-19 |
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| Expiration | 2007-08-05 |
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| Cancellation | 2003-12-03 |
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| Frequency range | 108 - 5430 MHz (8 frequencies) |
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| Locations | 1 |
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| Representative location | BOSTON, SUFFOLK, MA |
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| Coordinates | 42.3659444, -71.0153333 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:40 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | RLT | 75.00000000 | | | 1.000000 | | |
| 1 | 2 | RLT | 108.00000000 | | | 1.000000 | | |
| 1 | 2 | RLT | 108.10000000 | | | 1.000000 | | |
| 1 | 3 | RLT | 334.10000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 978.00000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 979.00000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 1030.00000000 | | | 1.000000 | | |
| 1 | 5 | RLT | 5370.00000000 | 5430.00000000 | | 60000.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 75.00000000 | | 6K00A2A |
| 1 | 2 | 108.00000000 | | 20K9A9W |
| 1 | 2 | 108.10000000 | | 6K00A9W |
| 1 | 3 | 334.10000000 | | 300HA1N |
| 1 | 4 | 978.00000000 | | 650KM1A |
| 1 | 4 | 979.00000000 | | 650KM1A |
| 1 | 4 | 1030.00000000 | | 6M00M1D |
| 1 | 5 | 5370.00000000 | | 16M0P0N |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | BOSTON INTERNATIONAL LOGAN AIRPORT, BOSTON, SUFFOLK, MA | 42.36594444, -71.01533333 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 2 | 1 | T | | | | | | | |
| 3 | 1 | T | | | | | | | |
| 4 | 1 | T | | | | | | | |
| 5 | 1 | T | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2003-12-04 | WRLT4939 | LICAN |
| 2003-06-19 | WRLT4939 | LIASS |
| 2002-11-19 | WRLT4939 | LIREN |
| 2002-11-19 | WRLT4939 | COR |
| 2002-05-13 | WRLT4939 | LETRES |
| 2001-10-20 | WRLT4939 | LIAUA |
| 2001-08-07 | WRLT4939 | LIAUA |
| 2001-04-27 | WRLT4939 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1983954 | 2026-08-02 02:08:40 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRLT4939 | ULS 1983954 | 2026-08-02 02:08:40 |
| Status | C | ULS 1983954 | 2026-08-02 02:08:40 |
| Service | AR | ULS 1983954 | 2026-08-02 02:08:40 |
| Grant Date | 2002-11-19 | ULS 1983954 | 2026-08-02 02:08:40 |
| Expiration Date | 2007-08-05 | ULS 1983954 | 2026-08-02 02:08:40 |
| Cancellation Date | 2003-12-03 | ULS 1983954 | 2026-08-02 02:08:40 |