Universal Licensing System
WPNN431
LOS ANGELES COUNTY METROPOLITAN TRANSPORTATION AUTHORITY
License details
| ULS identifier | 1046576 |
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| Call sign | WPNN431 |
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| Radio service | MW |
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| Status | C |
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| Grant date | 2007-05-31 |
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| Expiration | 2017-08-01 |
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| Cancellation | 2008-08-15 |
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| Frequency range | 18675 MHz |
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| Locations | 2 |
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| Representative location | LA CRESENTA, LOS ANGELES, CA |
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| Coordinates | 34.2722222, -118.2400556 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:42:52 |
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Licensee
| Name | LOS ANGELES COUNTY METROPOLITAN TRANSPORTATION AUTHORITY |
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| Applicant type | G |
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| FRN | 0001531201 |
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| Location | LOS ANGELES, CA |
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| Address | One Gateway Plaza Mail Stop 99-6-4, LOS ANGELES, CA, 90012 |
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| Phone | 2139223416 |
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| Email | [email protected] |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FXO | 18675.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 18675.00000000 | | 6M40F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | MOUNT LUKENS, LA CRESENTA, LOS ANGELES, CA | 34.27222222, -118.24005556 | 1540.800 m | | 33.500 m structure / 37.800 m overall | |
| 2 | R | | 34.21916667, -118.28616667 | 918.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | V | 48.5000 | 215.8000 | | |
| 1 | 2 | R | | | | 48.5000 | | | |
License history
| Date | File or call sign | Action |
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| 2008-08-16 | WPNN431 | LICAN |
| 2007-05-31 | WPNN431 | LIREN |
| 2007-05-30 | WPNN431 | ESUAPR |
| 2007-05-07 | WPNN431 | LETRES |
| 2007-05-03 | WPNN431 | ESURNW |
| 2003-12-02 | WPNN431 | LIAUA |
| 1999-08-14 | WPNN431 | LICCNV |
| 1998-06-22 | WPNN431 | LIISS |
| 1998-06-19 | WPNN431 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1046576 | 2026-08-02 02:42:52 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPNN431 | ULS 1046576 | 2026-08-02 02:42:52 |
| Status | C | ULS 1046576 | 2026-08-02 02:42:52 |
| Service | MW | ULS 1046576 | 2026-08-02 02:42:52 |
| Grant Date | 2007-05-31 | ULS 1046576 | 2026-08-02 02:42:52 |
| Expiration Date | 2017-08-01 | ULS 1046576 | 2026-08-02 02:42:52 |
| Cancellation Date | 2008-08-15 | ULS 1046576 | 2026-08-02 02:42:52 |