Universal Licensing System
KWS4
SAN MATEO, COUNTY OF
License details
| ULS identifier | 1971821 |
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| Call sign | KWS4 |
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| Radio service | AF |
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| Status | A |
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| Grant date | 2025-03-26 |
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| Expiration | 2035-02-23 |
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| Frequency range | 122.8 MHz |
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| Locations | 1 |
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| Representative location | HALF MOON BAY, SAN MATEO, CA |
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| Coordinates | 37.5138333, -122.5010833 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:10 |
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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 | FAA | 122.80000000 | | | 10.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 122.80000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | HALF MOON BAY AIRPORT, HALF MOON BAY, SAN MATEO, CA | 37.51383333, -122.50108333 | 20.000 m | B | 5.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 6.000 m | | | | | |
License history
| Date | File or call sign | Action |
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| 2025-08-22 | KWS4 | LIAUA |
| 2025-03-26 | KWS4 | LIREN |
| 2015-01-28 | KWS4 | LIREN |
| 2014-12-01 | KWS4 | LETRES |
| 2005-02-23 | KWS4 | LIREN |
| 2005-01-12 | KWS4 | LTSFRN |
| 2005-01-12 | KWS4 | LTSAPR |
| 2005-01-11 | KWS4 | ESCAPR |
| 2005-01-11 | KWS4 | EFCAPR |
| 2005-01-10 | KWS4 | LETRES |
| 2001-04-27 | KWS4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1971821 | 2026-08-02 02:08:10 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KWS4 | ULS 1971821 | 2026-08-02 02:08:10 |
| Status | A | ULS 1971821 | 2026-08-02 02:08:10 |
| Service | AF | ULS 1971821 | 2026-08-02 02:08:10 |
| Grant Date | 2025-03-26 | ULS 1971821 | 2026-08-02 02:08:10 |
| Expiration Date | 2035-02-23 | ULS 1971821 | 2026-08-02 02:08:10 |