Universal Licensing System
WNNN497
Contra Costa, County of
License details
| ULS identifier | 1189780 |
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| Call sign | WNNN497 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2021-04-22 |
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| Expiration | 2031-06-20 |
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| Frequency range | 46.1 - 46.38 MHz (6 frequencies) |
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| Locations | 1 |
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| Representative location | ANTIOCH, CONTRA COSTA, CA |
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| Coordinates | 37.9826944, -121.7671667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:08:36 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 46.10000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 46.14000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 46.18000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 46.24000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 46.32000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 46.38000000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 46.10000000 | | 20K0F3E |
| 1 | 1 | 46.14000000 | | 20K0F3E |
| 1 | 1 | 46.18000000 | | 20K0F3E |
| 1 | 1 | 46.24000000 | | 20K0F3E |
| 1 | 1 | 46.32000000 | | 20K0F3E |
| 1 | 1 | 46.38000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4288 FOLSOM DR, ANTIOCH, CONTRA COSTA, CA | 37.98269444, -121.76716667 | 43.000 m | BANT | 8.000 m structure / 11.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | -19.000 | |
Control points
| Number | Address | County | Phone |
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| 1 | 2900 DOROTHY DR, PLEASANT HILL, CA | CONTRA COSTA | 9259305531 |
License history
| Date | File or call sign | Action |
|---|
| 2021-04-22 | WNNN497 | LIREN |
| 2021-03-29 | WNNN497 | LETRES |
| 2020-07-23 | WNNN497 | LIAUA |
| 2020-05-07 | WNNN497 | LIAUA |
| 2012-06-16 | WNNN497 | LIAUA |
| 2012-06-15 | WNNN497 | ESUAPR |
| 2011-04-05 | WNNN497 | LIREN |
| 2011-03-28 | WNNN497 | LETRES |
| 2011-03-22 | WNNN497 | ESURNW |
| 2010-06-22 | WNNN497 | LTSAPR |
| 2010-06-22 | WNNN497 | LIAUA |
| 2010-06-21 | WNNN497 | EFCAPR |
| 2010-06-21 | WNNN497 | ESCAPR |
| 2004-09-29 | WNNN497 | LIAUA |
| 2004-09-28 | WNNN497 | ESUAPR |
| 2002-02-19 | WNNN497 | AUDOPR |
| 2001-03-23 | WNNN497 | LIREN |
| 2000-12-20 | WNNN497 | LIAUA |
| 2000-10-20 | WNNN497 | LICCNV |
| 1996-06-20 | WNNN497 | LIMOD |
| 1996-06-20 | WNNN497 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1189780 | 2026-08-02 01:08:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNNN497 | ULS 1189780 | 2026-08-02 01:08:36 |
| Status | A | ULS 1189780 | 2026-08-02 01:08:36 |
| Service | PW | ULS 1189780 | 2026-08-02 01:08:36 |
| Grant Date | 2021-04-22 | ULS 1189780 | 2026-08-02 01:08:36 |
| Expiration Date | 2031-06-20 | ULS 1189780 | 2026-08-02 01:08:36 |