Universal Licensing System
KW4429
San Francisco, City and County of
License details
| ULS identifier | 1971566 |
|---|
| Call sign | KW4429 |
|---|
| Radio service | AA |
|---|
| Status | A |
|---|
| Grant date | 2025-05-29 |
|---|
| Expiration | 2035-03-07 |
|---|
| Frequency range | 121.8 - 124.25 MHz (2 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | San Fran Intl Arpt, SAN MATEO, CA |
|---|
| Coordinates | 37.6205556, -122.3655556 |
|---|
| Source archive | l_coast.zip |
|---|
| Dataset refreshed | 2026-08-02 02:08:10 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MOU1 | 121.80000000 | | | 10.000000 | | |
| 1 | 1 | MOU1 | 124.25000000 | | | 10.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 121.80000000 | | 6K00A3E |
| 1 | 1 | 124.25000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | San Fran Intl Arpt, SAN MATEO, CA | 37.62055556, -122.36555556 | | | | |
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 |
|---|
| 2025-05-29 | KW4429 | LIREN |
| 2024-12-09 | KW4429 | LETRES |
| 2017-09-16 | KW4429 | LIAUA |
| 2017-04-07 | KW4429 | COR |
| 2015-01-23 | KW4429 | LIREN |
| 2014-12-17 | KW4429 | ESUAPR |
| 2014-12-15 | KW4429 | LETRES |
| 2014-12-07 | KW4429 | ESURNW |
| 2013-09-20 | KW4429 | LIAUA |
| 2013-09-19 | KW4429 | ESUAPR |
| 2013-03-11 | KW4429 | LIAUA |
| 2013-03-08 | KW4429 | ESUAPR |
| 2013-03-06 | KW4429 | LIAUA |
| 2013-03-05 | KW4429 | ESUAPR |
| 2012-02-02 | KW4429 | LIAUA |
| 2012-02-01 | KW4429 | ESUAPR |
| 2012-01-13 | KW4429 | LIAUA |
| 2012-01-12 | KW4429 | ESCAPR |
| 2005-04-25 | KW4429 | LIREN |
| 2004-12-13 | KW4429 | LETRES |
| 2001-04-27 | KW4429 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1971566 | 2026-08-02 02:08:10 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KW4429 | ULS 1971566 | 2026-08-02 02:08:10 |
| Status | A | ULS 1971566 | 2026-08-02 02:08:10 |
| Service | AA | ULS 1971566 | 2026-08-02 02:08:10 |
| Grant Date | 2025-05-29 | ULS 1971566 | 2026-08-02 02:08:10 |
| Expiration Date | 2035-03-07 | ULS 1971566 | 2026-08-02 02:08:10 |