Universal Licensing System
WRLT4977
American Airlines Group Inc.
License details
| ULS identifier | 1983975 |
|---|
| Call sign | WRLT4977 |
|---|
| Radio service | AR |
|---|
| Status | E |
|---|
| Grant date | 2005-01-04 |
|---|
| Expiration | 2015-03-01 |
|---|
| Cancellation | 2015-05-16 |
|---|
| Frequency range | 979 - 1030 MHz (2 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | SAN FRANCISCO, SAN MATEO, CA |
|---|
| Coordinates | 37.4666111, -122.3844167 |
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| Source archive | l_coast.zip |
|---|
| Dataset refreshed | 2026-08-02 02:08:33 |
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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 | 334.70000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 978.00000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 979.00000000 | | | 1.000000 | | |
| 1 | 4 | RLT | 1030.00000000 | | | 1.000000 | | |
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 | 334.70000000 | | 300HA1N |
| 1 | 4 | 978.00000000 | | 650KM1A |
| 1 | 4 | 979.00000000 | | 650KM1A |
| 1 | 4 | 1030.00000000 | | 6M00M1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SAN FRANCISCO INTERNATIONAL AIRPORT, SAN FRANCISCO, SAN MATEO, CA | 37.46661111, -122.38441667 | 2.000 m | TOWER | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 2.000 m | | | | | |
| 2 | 1 | T | | 2.000 m | | | | | |
| 3 | 1 | T | | 2.000 m | | | | | |
| 4 | 1 | T | | 2.000 m | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2015-05-16 | WRLT4977 | LIEXP |
| 2014-12-08 | WRLT4977 | PLRRPR |
| 2013-12-09 | WRLT4977 | LIASS |
| 2013-05-31 | WRLT4977 | LTSAPR |
| 2012-02-14 | WRLT4977 | LIAUA |
| 2012-02-13 | WRLT4977 | ESUAPR |
| 2012-01-27 | WRLT4977 | LIASS |
| 2012-01-10 | WRLT4977 | LIAUA |
| 2012-01-09 | WRLT4977 | ESUAPR |
| 2012-01-06 | WRLT4977 | ESUAPR |
| 2005-01-04 | WRLT4977 | LIREN |
| 2005-01-04 | WRLT4977 | LTSFRN |
| 2005-01-03 | WRLT4977 | ESCAPR |
| 2004-12-06 | WRLT4977 | LETRES |
| 2001-04-27 | WRLT4977 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1983975 | 2026-08-02 02:08:33 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRLT4977 | ULS 1983975 | 2026-08-02 02:08:33 |
| Status | E | ULS 1983975 | 2026-08-02 02:08:33 |
| Service | AR | ULS 1983975 | 2026-08-02 02:08:33 |
| Grant Date | 2005-01-04 | ULS 1983975 | 2026-08-02 02:08:33 |
| Expiration Date | 2015-03-01 | ULS 1983975 | 2026-08-02 02:08:33 |
| Cancellation Date | 2015-05-16 | ULS 1983975 | 2026-08-02 02:08:33 |